----

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| (Mark      One)                                                                                                                |                                                                                                         |
|--------------------------------------------------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------|
| x                                                                                                                              | QUARTERLY      REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT      OF 1934  |
| For      the quarterly period ended December 27, 2009                                                                     |
| or                                                                                                                             |
| o                                                                                                                              | TRANSITION      REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT      OF 1934 |
| For      the transition period      from              to |

| Delaware(State      or Other Jurisdiction ofIncorporation      or Organization)                    | 95-1528961(I.R.S.      EmployerIdentification      No.) |
|----------------------------------------------------------------------------------------------------|---------------------------------------------------------|
| 101      N. Sepulveda BlvdEl      Segundo, California(Address      of Principal Executive Offices) |  90245(Zip      Code)                              |

| Large accelerated filer x | Accelerated filer o | Non-accelerated filer o(Do not check if a smallerreporting company) | Smaller reporting company o |
|------------------------------------------|-------------------------------|-------------------------------------------------------------------------------------------------------------|--------------------------------------------|

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TABLE OF CONTENTS

|          |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            | Page  |
|---------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|------------|
| PART I.       | Financial      Information                                                                                                                                                                          | 4          |
|          |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            |       |
| Item 1.  | Financial      Statements                                                                                                                                                                           | 4          |
|          |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            |       |
|          | Unaudited Condensed Consolidated Statements of Operations for      the Three and Six Months Ended December 27, 2009 and December 28,      2008                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  | 4          |
|          |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            |       |
|          | Unaudited Condensed Consolidated Statements of      Comprehensive Income (Loss) for the Three and Six Months Ended December      27, 2009 and December 28, 2008                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 | 5          |
|          |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            |       |
|          | Unaudited Condensed Consolidated Balance Sheets as of December      27, 2009 and June 28, 2009                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  | 6          |
|          |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            |       |
|          | Unaudited Condensed Consolidated Statements of Cash Flows for      the Six Months Ended December 27, 2009 and December 28,      2008                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            | 7          |
|          |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            |       |
|          | Notes to the Unaudited Condensed Consolidated Financial      Statements                                                                                                                             | 8          |
|          |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            |       |
| Item 2.  | Management’s Discussion and Analysis of Financial      Condition and Results of Operations                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                | 35         |
|          |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            |       |
| Item 3.  | Quantitative and Qualitative Disclosures About Market      Risk                                                                                                                                     | 50         |
|          |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            |       |
| Item 4.  | Controls and      Procedures                                                                                                                                                                        | 51         |
|          |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            |       |
| PART II.      | Other      Information                                                                                                                                                                              | 53         |
|          |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            |       |
| Item 1.  | Legal      Proceedings                                                                                                                                                                              | 53         |
|          |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            |       |
| Item 1A. | Risk      Factors                                                                                                                                                                                   | 53         |
|          |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            |       |
| Item 2.       | Unregister Sales of Equity Securities and Use of      Proceeds                                                                                                                                      | 54         |
|          |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            |       |
| Item 4.       | Submission of Matters to a Vote of Security      Holders                                                                                                                                            | 55         |
|          |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            |       |
| Item 5.       | Other      Information                                                                                                                                                                              | 55         |
|          |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            |       |
| Item 6.  | Exhibits                                                                                                                                                                                            | 56         |

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Table of Contents

PART I. FINANCIAL INFORMATION

ITEM 1.  Financial Statements

INTERNATIONAL RECTIFIER CORPORATION AND SUBSIDIARIES

UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OFOPERATIONS

|                                                                                          |   | Three      Months Ended |    |   | Six      Months Ended  |   |
|-----------------------------------------------------------------------------------------------|--------|-------------------------|---------|--------|------------------------|--------|
|                                                                                          |   | December      27, 2009  |    |   | December      28, 2008 |   |   | December      27, 2009 |   |   | December      28, 2008 |   |
| Revenues                                                                                      |   | $                       | 210,244 |   |                   | $      | 189,746 |   |   | $ | 389,615 |   |   | $ | 434,220 |   |
| Cost      of sales                                                                            |   |                    | 147,426 |   |                   |   | 125,403 |   |   |   | 279,440 |   |   |   | 273,485 |   |
| Gross      profit                                                                             |   |                    | 62,818  |   |                   |   | 64,343 |   |   |   | 110,175 |   |   |   | 160,735 |   |
|                                                                                          |   |                    |    |   |                   |   |   |   |   |   |   |   |   |   |   |   |
| Selling,      general and administrative expense                                              |   |                    | 37,285  |   |                   |   | 61,528 |   |   |   | 80,867 |   |   |   | 126,405 |   |
| Research      and development expense                                                         |   |                    | 24,215  |   |                   |   | 24,901 |   |   |   | 47,042 |   |   |   | 49,618 |   |
| Amortization      of acquisition-related intangible assets                                    |   |                    | 1,094   |   |                   |   | 1,098 |   |   |   | 2,188 |   |   |   | 2,195 |   |
| Asset      impairment, restructuring and other charges                                        |   |                    | (30     | )      |                   |   | 48,976 |   |   |   | 137 |   |   |   | 49,447 |   |
| Operating      income (loss)                                                                  |   |                    | 254     |   |                   |   | (72,160 | ) |   |   | (20,059 | ) |   |   | (66,930 | ) |
| Other      expense, net                                                                       |   |                    | 1,009   |   |                   |   | 10,626 |   |   |   | 1,787 |   |   |   | 25,208 |   |
| Interest      (income) expense, net                                                           |   |                    | (2,488  | )      |                   |   | 769 |   |   |   | (6,458 | ) |   |   | (4,291 | ) |
| Income      (loss) before income taxes                                                        |   |                    | 1,733   |   |                   |   | (83,555 | ) |   |   | (15,388 | ) |   |   | (87,847 | ) |
| Provision      for (benefit from) income taxes                                                |   |                    | (26,585 | )      |                   |   | 106,197 |   |   |   | (26,806 | ) |   |   | 106,091 |   |
| Net      income (loss)                                                                        |   | $                       | 28,318  |   |                   | $      | (189,752 | ) |   | $ | 11,418 |   |   | $ | (193,938 | ) |
| Net      income (loss) per common share—basic                                           |   | $                       | 0.40    |   |                   | $      | (2.61 | ) |   | $ | 0.16 |   |   | $ | (2.67 | ) |
| Net      income (loss) per common share—diluted                                         |   | $                       | 0.39    |   |                   | $      | (2.61 | ) |   | $ | 0.16 |   |   | $ | (2.67 | ) |
| Average      common shares outstanding—basic                                            |   |                    | 71,605  |   |                   |   | 72,692 |   |   |   | 71,566 |   |   |   | 72,770 |   |
| Average      common shares and potentially dilutive securities      outstanding—diluted |   |                    | 71,827  |   |                   |   | 72,692 |   |   |   | 71,667 |   |   |   | 72,770 |   |

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INTERNATIONAL RECTIFIER CORPORATION ANDSUBSIDIARIES

UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVEINCOME (LOSS)

(In thousands)

|                                                                                                                                       |   | Three      Months Ended |    |   | Six      Months Ended  |   |
|--------------------------------------------------------------------------------------------------------------------------------------------|--------|-------------------------|---------|--------|------------------------|--------|
|                                                                                                                                       |   | December      27, 2009  |    |   | December      28, 2008 |   |   | December      27, 2009 |   |   | December      28, 2008 |   |
| Net      income (loss)                                                                                                                     |   | $                       | 28,318  |   |                   | $      | (189,752 | ) |   | $ | 11,418 |   |   | $ | (193,938 | ) |
| Other      comprehensive income (loss):                                                                                                    |   |                    |    |   |                   |   |   |   |   |   |   |   |   |   |   |   |
| Foreign      currency translation adjustments                                                                                              |   |                    | (590    | )      |                   |   | (60,774 | ) |   |   | (4,747 | ) |   |   | (84,645 | ) |
| Unrealized      gains (losses) on securities:                                                                                              |   |                    |    |   |                   |   |   |   |   |   |   |   |   |   |   |   |
| Unrealized      holding gains (losses) on available-for-sale securities, net of tax effect      of $(973), $0, $1,684 and $0, respectively |   |                    | (1,612  | )      |                   |   | 5,611 |   |   |   | 597 |   |   |   | (853 | ) |
| Reclassification      adjustments of net gains on foreign currency forward    contract                                                     |   |                    | — |   |                   |   | 113 |   |   |   | (1,565 | ) |   |   | (83 | ) |
| Other      comprehensive loss                                                                                                              |   |                    | (2,202  | )      |                   |   | (55,050 | ) |   |   | (5,715 | ) |   |   | (85,581 | ) |
| Comprehensive      income (loss)                                                                                                           |   | $                       | 26,116  |   |                   | $      | (244,802 | ) |   | $ | 5,703 |   |   | $ | (279,519 | ) |

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UNAUDITED CONDENSED CONSOLIDATED BALANCE SHEETS

|                                                      |   | December 27,2009 |      |   | June 28,2009      (1) |   |
|-----------------------------------------------------------|--------|-----------------------|-----------|--------|----------------------------|--------|
| Assets                                                    |   |                  |      |   |                       |   |
| Current      assets:                                      |   |                  |      |   |                       |   |
| Cash      and cash equivalents                            |   | $                     | 209,406   |   |                       | $      | 365,761 |   |
| Restricted      cash                                      |   |                  | 3,405     |   |                       |   | 3,925 |   |
| Short-term      investments                               |   |                  | 260,727   |   |                       |   | 113,247 |   |
| Trade      accounts receivable, net                       |   |                  | 127,141   |   |                       |   | 97,572 |   |
| Inventories                                               |   |                  | 157,973   |   |                       |   | 151,121 |   |
| Current      deferred tax assets                          |   |                  | 1,257     |   |                       |   | 1,223 |   |
| Prepaid      expenses and other receivables               |   |                  | 59,431    |   |                       |   | 28,556 |   |
| Total      current assets                                 |   |                  | 819,340   |   |                       |   | 761,405 |   |
| Long-term      investments                                |   |                  | 75,996    |   |                       |   | 121,508 |   |
| Property,      plant and equipment, net                   |   |                  | 352,855   |   |                       |   | 369,713 |   |
| Goodwill                                                  |   |                  | 74,955    |   |                       |   | 74,955 |   |
| Acquisition-related      intangible assets, net           |   |                  | 9,633     |   |                       |   | 11,821 |   |
| Long-term      deferred tax assets                        |   |                  | 7,049     |   |                       |   | 7,994 |   |
| Other      assets                                         |   |                  | 47,483    |   |                       |   | 53,911 |   |
| Total      assets                                         |   | $                     | 1,387,311 |   |                       | $      | 1,401,307 |   |
| Liabilities      and Stockholders’ Equity           |   |                  |      |   |                       |   |   |   |
| Current      liabilities:                                 |   |                  |      |   |                       |   |   |   |
| Accounts      payable                                     |   | $                     | 81,960    |   |                       | $      | 62,570 |   |
| Accrued      income taxes                                 |   |                  | 13,271    |   |                       |   | 6,830 |   |
| Accrued      salaries, wages and commissions              |   |                  | 25,039    |   |                       |   | 22,325 |   |
| Current      deferred tax liabilities                     |   |                  | 2,793     |   |                       |   | 2,793 |   |
| Other      accrued expenses                               |   |                  | 68,292    |   |                       |   | 114,043 |   |
| Total      current liabilities                            |   |                  | 191,355   |   |                       |   | 208,561 |   |
| Long-term      deferred tax liabilities                   |   |                  | 5,188     |   |                       |   | 4,439 |   |
| Other      long-term liabilities                          |   |                  | 48,352    |   |                       |   | 53,055 |   |
| Total      liabilities                                    |   |                  | 244,895   |   |                       |   | 266,055 |   |
| Commitments      and contingencies                        |   |                  |      |   |                       |   |   |   |
| Stockholders’      equity:                          |   |                  |      |   |                       |   |   |   |
| Common      shares                                        |   |                  | 73,243    |   |                       |   | 73,101 |   |
| Capital      contributed in excess of par value of shares |   |                  | 988,113   |   |                       |   | 981,786 |   |
| Treasury      stock, at cost                              |   |                  | (28,640   | )      |                       |   | (23,632 | ) |
| Retained      earnings (2)                                |   |                  | 109,780   |   |                       |   | 98,362 |   |
| Accumulated      other comprehensive income (2)           |   |                  | (80       | )      |                       |   | 5,635 |   |
| Total      stockholders’ equity                     |   |                  | 1,142,416 |   |                       |   | 1,135,252 |   |
| Total      liabilities and stockholders’ equity     |   | $                     | 1,387,311 |   |                       | $      | 1,401,307 |   |

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UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CASHFLOWS

|                                                                                           |   | Six      Months Ended  |     |
|------------------------------------------------------------------------------------------------|--------|------------------------|----------|
|                                                                                           |   | December      27, 2009 |     |   | December      28, 2008 |   |
| Cash      flow from operating activities:                                                      |   |                   |     |   |   |   |
| Net      income (loss)                                                                         |   | $                      | 11,418   |   |   | $ | (193,938 | ) |
| Adjustments      to reconcile net income (loss) to net cash used in operating      activities: |   |                   |     |   |   |   |   |   |
| Depreciation      and amortization                                                             |   |                   | 33,931   |   |   |   | 32,377 |   |
| Amortization      of acquisition-related intangible assets                                     |   |                   | 2,188    |   |   |   | 2,195 |   |
| Stock      compensation expense                                                                |   |                   | 5,130    |   |   |   | 2,371 |   |
| Provision      for bad debt                                                                    |   |                   | (1,770   | ) |   |   | 191 |   |
| Provision      for inventory write-downs                                                       |   |                   | (6,134   | ) |   |   | 4,935 |   |
| Deferred      income taxes                                                                     |   |                   | (2,074   | ) |   |   | 95,919 |   |
| Other-than-temporary      impairment of investments                                            |   |                   | 2,004    |   |   |   | 25,518 |   |
| Asset      impairment                                                                          |   |                   | —  |   |   |   | 50,824 |   |
| (Gain)      loss on derivatives                                                                |   |                   | (2,920   | ) |   |   | 178 |   |
| Net      settlement of restricted stock units for tax withholdings                             |   |                   | (254     | ) |   |   | (228 | ) |
| (Gain)      loss on sale of investments                                                        |   |                   | (3,889   | ) |   |   | 5,962 |   |
| Changes      in operating assets and liabilities, net                                          |   |                   | (73,537  | ) |   |   | (36,648 | ) |
| Other                                                                                          |   |                   | 1,205    |   |   |   | 6,018 |   |
| Net      cash used in operating activities                                                     |   |                   | (34,702  | ) |   |   | (4,326 | ) |
| Cash      flow from investing activities:                                                      |   |                   |     |   |   |   |   |   |
| Additions      to property, plant and equipment                                                |   |                   | (20,103  | ) |   |   | (11,065 | ) |
| Proceeds      from sale of property, plant and equipment                                       |   |                   | 57       |   |   |   | 181 |   |
| Reductions      (additions) to restricted cash                                                 |   |                   | 520      |   |   |   | (68 | ) |
| Sale      or maturities of investments                                                         |   |                   | 129,660  |   |   |   | 225,601 |   |
| Purchase      of investments                                                                   |   |                   | (228,712 | ) |   |   | (122,484 | ) |
| Net      cash (used in) provided by investing activities                                       |   |                   | (118,578 | ) |   |   | 92,165 |   |
| Cash      flow from financing activities:                                                      |   |                   |     |   |   |   |   |   |
| Purchase      of treasury stock                                                                |   |                   | (5,008   | ) |   |   | (7,431 | ) |
| Reductions      in restricted cash                                                             |   |                   | —  |   |   |   | 1,416 |   |
| Excess      tax benefit from options exercised                                                 |   |                   | —  |   |   |   | 3 |   |
| Proceeds      from exercise of stock options                                                   |   |                   | 1,589    |   |   |   | 1,363 |   |
| Net      cash used in financing activities                                                     |   |                   | (3,419   | ) |   |   | (4,649 | ) |
| Effect      of exchange rate changes on cash and cash equivalents                              |   |                   | 344      |   |   |   | (4,264 | ) |
| Net      (decrease) increase in cash and cash equivalents                                      |   |                   | (156,355 | ) |   |   | 78,926 |   |
| Cash      and cash equivalents, beginning of period                                            |   |                   | 365,761  |   |   |   | 320,464 |   |
| Cash      and cash equivalents, end of period                                                  |   | $                      | 209,406  |   |   | $ | 399,390 |   |

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1. Business, Basis of Presentation and Summary of SignificantAccounting Policies

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| Assets      and Liabilities:            |   | Total  |    |   | Quoted      Prices in Active Markets for Identical Assets(Level 1) |   |    | Significant      Other Observable Inputs(Level 2) |   |   | Significant      Unobservable Inputs(Level 3) |   |
|----------------------------------------------|--------|--------|---------|--------|-------------------------------------------------------------------------|--------|---------|--------------------------------------------------------|--------|--------|----------------------------------------------------|--------|
| Cash      and cash equivalents               |   | $      | 4,998   |   |                                                                    | $      | — |                                                   |   | $      | 4,998                                              |   |   | $ | — |   |
| Short-term      investments                  |   |   | 260,727 |   |                                                                    |   | 227,072 |                                                   |   |   | 33,655                                             |   |   |   | — |   |
| Long-term      investments                   |   |   | 75,996  |   |                                                                    |   | 28,367  |                                                   |   |   | 16,791                                             |   |   |   | 30,838 |   |
| Other      assets                            |   |   | 30,027  |   |                                                                    |   | 28,073  |                                                   |   |   | —                                            |   |   |   | 1,954 |   |
| Prepaid      expenses and other receivables  |   |   | 692     |   |                                                                    |   | — |                                                   |   |   | 692                                                |   |   |   | — |   |
| Other      accrued expenses                  |   |   | (192    | )      |                                                                    |   | — |                                                   |   |   | (192                                               | )      |   |   | — |   |
| Other      long-term liabilities             |   |   | (6,498  | )      |                                                                    |   | (6,498  | )                                                      |   |   | —                                            |   |   |   | — |   |
| Total                                        |   | $      | 365,750 |   |                                                                    | $      | 277,014 |                                                   |   | $      | 55,944                                             |   |   | $ | 32,792 |   |
| Fair      value as a percentage of total     |   |   | 100.0   | %      |                                                                    |   | 75.7    | %                                                      |   |   | 15.3                                               | %      |   |   | 9.0 | % |
| Level      3 as a percentage of total assets |   |   |    |   |                                                                    |   |    |                                                   |   |   |                                               |   |   |   | 2.4 | % |

|                                                                         |   | Fair      Value Measurements Using Significant Unobservable Inputs (Level      3) |    |
|------------------------------------------------------------------------------|--------|-----------------------------------------------------------------------------------|---------|
|                                                                         |   | Derivatives                                                                       |    |   | Investments |   |   | Total |   |
| Beginning      balance at September 27, 2009                                 |   | $                                                                                 | 2,149   |   |   | $ | 35,048 |   |   | $ | 37,197 |   |
| Total      gains or losses (realized or unrealized):                         |   |                                                                              |    |   |   |   |   |   |   |   |   |   |
|     Included      in earnings (or changes in net assets) |   |                                                                              | (199    | ) |   |   | 1,213 |   |   |   | 1,014 |   |
|     Included      in other comprehensive income          |   |                                                                              | — |   |   |   | 810 |   |   |   | 810 |   |
| Purchases,      issuance, and settlements                                    |   |                                                                              | — |   |   |   | (6,229 | ) |   |   | (6,229 | ) |
| Transfers      in and/or out of level 3                                      |   |                                                                              | — |   |   |   | — |   |   |   | — |   |
| Ending      balance at December 27, 2009                                     |   | $                                                                                 | 1,950   |   |   | $ | 30,842 |   |   | $ | 32,792 |   |

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|                                                                         |   | Fair      Value Measurements Using Significant Unobservable Inputs (Level      3) |    |
|------------------------------------------------------------------------------|--------|-----------------------------------------------------------------------------------|---------|
|                                                                         |   | Derivatives                                                                       |    |   | Investments |   |   | Total |   |
| Beginning      balance at June 28, 2009                                      |   | $                                                                                 | — |   |   | $ | 40,834 |   |   | $ | 40,834 |   |
| Total      gains or losses (realized or unrealized):                         |   |                                                                              |    |   |   |   |   |   |   |   |   |   |
|     Included      in earnings (or changes in net assets) |   |                                                                              | (199    | ) |   |   | 2,551 |   |   |   | 2,352 |   |
|     Included      in other comprehensive income          |   |                                                                              | — |   |   |   | 2,155 |   |   |   | 2,155 |   |
| Purchases,      issuance, and settlements                                    |   |                                                                              | 2,149   |   |   |   | (14,698 | ) |   |   | (12,549 | ) |
| Transfers      in and/or out of level 3                                      |   |                                                                              | — |   |   |   | — |   |   |   | — |   |
| Ending      balance at December 27, 2009                                     |   | $                                                                                 | 1,950   |   |   | $ | 30,842 |   |   | $ | 32,792 |   |

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|                                                      |   | September      27, 2009     |      |
|-----------------------------------------------------------|--------|-----------------------------|-----------|
|                                                      |   | As      Previously Reported |      |   | Effect      of Adjustments |   |   |  As      Adjusted |   |
| Stockholders’      equity:                          |   |                        |      |   |   |   |   |   |   |
| Common      shares                                        |   | $                           | 73,181    |   |   | $ | — |   |   | $ | 73,181 |   |
| Capital      contributed in excess of par value of shares |   |                        | 984,916   |   |   |   | — |   |   |   | 984,916 |   |
| Treasury      stock, at cost                              |   |                        | (23,632   | ) |   |   | — |   |   |   | (23,632 | ) |
| Retained      earnings                                    |   |                        | 68,115    |   |   |   | 13,347 |   |   |   | 81,462 |   |
| Accumulated      other comprehensive income               |   |                        | 15,469    |   |   |   | (13,347 | ) |   |   | 2,122 |   |
| Total      stockholders’ equity                     |   | $                           | 1,118,049 |   |   | $ | — |   |   | $ | 1,118,049 |   |

|                                                      |   | June      28, 2009          |      |
|-----------------------------------------------------------|--------|-----------------------------|-----------|
|                                                      |   | As      Previously Reported |      |   | Effect      of Adjustments |   |   |  As      Adjusted |   |
| Stockholders’      equity:                          |   |                        |      |   |   |   |   |   |   |
| Common      shares                                        |   | $                           | 73,101    |   |   | $ | — |   |   | $ | 73,101 |   |
| Capital      contributed in excess of par value of shares |   |                        | 981,786   |   |   |   | — |   |   |   | 981,786 |   |
| Treasury      stock, at cost                              |   |                        | (23,632   | ) |   |   | — |   |   |   | (23,632 | ) |
| Retained      earnings                                    |   |                        | 85,015    |   |   |   | 13,347 |   |   |   | 98,362 |   |
| Accumulated      other comprehensive income               |   |                        | 18,982    |   |   |   | (13,347 | ) |   |   | 5,635 |   |
| Total      stockholders’ equity                     |   | $                           | 1,135,252 |   |   | $ | — |   |   | $ | 1,135,252 |   |

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|                                        |   | Amortized      Costs |    |   | Gross      Unrealized Gain |   |    | Gross      Unrealized Loss |   |   | Net      Unrealized Gain |   |   | Market      Value |    |
|---------------------------------------------|--------|----------------------|---------|--------|----------------------------|--------|---------|----------------------------|--------|--------|--------------------------|--------|--------|-------------------|---------|
| Short-Term      Investments:                |   |                 |    |   |                       |   |    |                       |   |   |                     |   |   |              |    |
| U.S.      government and agency obligations |   | $                    | 259,893 |   |                       | $      | 861     |                       |   | $      | (28                      | )      |   | $                 | 833     |   |   | $ | 260,727 |   |
| Total      short-term investments           |   | $                    | 259,893 |   |                       | $      | 861     |                       |   | $      | (28                      | )      |   | $                 | 833     |   |   | $ | 260,727 |   |
| Long-Term      Investments:                 |   |                 |    |   |                       |   |    |                       |   |   |                     |   |   |              |    |   |   |   |   |   |
| Corporate      debt                         |   | $                    | — |   |                       | $      | 23      |                       |   | $      | —                  |   |   | $                 | 23      |   |   | $ | 23 |   |
| U.S.      government and agency obligations |   |                 | 43,849  |   |                       |   | 1,286   |                       |   |   | —                  |   |   |              | 1,286   |   |   |   | 45,135 |   |
| Mortgage-backed      securities             |   |                 | 13,328  |   |                       |   | 2,774   |                       |   |   | —                  |   |   |              | 2,774   |   |   |   | 16,102 |   |
| Asset-backed      securities                |   |                 | 12,487  |   |                       |   | 2,256   |                       |   |   | (7                       | )      |   |              | 2,249   |   |   |   | 14,736 |   |
| Total      long-term investments            |   | $                    | 69,664  |   |                       | $      | 6,339   |                       |   | $      | (7                       | )      |   | $                 | 6,332   |   |   | $ | 75,996 |   |
|                                        |   |                 |    |   |                       |   |    |                       |   |   |                     |   |   |              |    |   |   |   |   |   |
| Notes      receivable                       |   | $                    | 2,050   |   |                       | $      | — |                       |   | $      | —                  |   |   | $                 | — |   |   | $ | 2,050 |   |
| Equity      securities                      |   | $                    | 15,682  |   |                       | $      | 2,836   |                       |   | $      | —                  |   |   | $                 | 2,836   |   |   | $ | 18,518 |   |

|                                                                                                                                                                                                                                                                                                                                     |   | Amortized      Costs |    |   | Gross      Unrealized Gain |   |    | Gross      Unrealized Loss |   |   | Net      Unrealized Gain |   |   | Market      Value |    |
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------|----------------------|---------|--------|----------------------------|--------|---------|----------------------------|--------|--------|--------------------------|--------|--------|-------------------|---------|
| Short-Term      Investments:                                                                                                                                                                                                                                                                                                             |   |                 |    |   |                       |   |    |                       |   |   |                     |   |   |              |    |
| Corporate      debt                                                                                                                                                                                                                                                                                                                 |   | $                    | 1,543   |   |                       | $      | 58      |                       |   | $      | —                  |   |   | $                 | 58      |   |   | $ | 1,601 |   |
| U.S.      government and agency obligations                                                                                                                                                                                                                                                                                         |   |                 | 111,199 |   |                       |   | 447     |                       |   |   | —                  |   |   |              | 447     |   |   |   | 111,646 |   |
| Total      short-term investments                                                                                                                                                                                                                                                                                                   |   | $                    | 112,742 |   |                       | $      | 505     |                       |   | $      | —                  |   |   | $                 | 505     |   |   | $ | 113,247 |   |
| Long-Term      Investments:                                                                                                                                                                                                                                                                                                              |   |                 |    |   |                       |   |    |                       |   |   |                     |   |   |              |    |   |   |   |   |   |
| Corporate      debt                                                       |   | $                    | 385     |   |                       | $      | 300     |                       |   | $      | —                  |   |   | $                 | 300     |   |   | $ | 685 |   |
| U.S.      government and agency obligations                                                                                                                                                                                                                                                                                         |   |                 | 79,024  |   |                       |   | 2,570   |                       |   |   | —                  |   |   |              | 2,570   |   |   |   | 81,594 |   |
| Mortgage-backed      securities                                                                                                                                                                                                                                                                                                     |   |                 | 18,600  |   |                       |   | 1,668   |                       |   |   | —                  |   |   |              | 1,668   |   |   |   | 20,268 |   |
| Asset-backed      securities                                                                                                                                                                                                                                                                                                        |   |                 | 17,818  |   |                       |   | 1,143   |                       |   |   | —                  |   |   |              | 1,143   |   |   |   | 18,961 |   |
| Total      long-term investments                                                                                                                                                                                                                                                                                                    |   | $                    | 115,827 |   |                       | $      | 5,681   |                       |   | $      | —                  |   |   | $                 | 5,681   |   |   | $ | 121,508 |   |
|                                                                                                                                                                                                                                                                                                                                     |   |                 |    |   |                       |   |    |                       |   |   |                     |   |   |              |    |   |   |   |   |   |
| Notes      receivable                                                     |   | $                    | 2,050   |   |                       | $      | — |                       |   | $      | —                  |   |   | $                 | — |   |   | $ | 2,050 |   |
| Equity      securities                                                    |   | $                    | 16,893  |   |                       | $      | 3,301   |                       |   | $      | (1,766                   | )      |   | $                 | 1,535   |   |   | $ | 18,428 |   |

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|                                        |   | Securities      heldin      a loss positionfor      less than12 months      atDecember      27, 2009 |   |   | Securities      heldin      a loss positionfor      12 monthsor      more atDecember      27, 2009 |   |   | Total      in a loss positionat      December 27, 2009 |   |
|---------------------------------------------|--------|-----------------------------------------------------------------------------------------------------------|--------|--------|---------------------------------------------------------------------------------------------------------|--------|--------|--------------------------------------------------------|--------|
|                                        |   | MarketValue                                                                                               |   |   | GrossUnrealizedLosses                                                                                   |   |   | MarketValue                                            |   |   | GrossUnrealizedLosses |   |   | MarketValue |   |   | GrossUnrealizedLosses |   |
| U.S.      government and agency obligations |   | $                                                                                                         | 55,291 |   |                                                                                                    | $      | (28    | )                                                      |   | $ | — |   |   | $ | — |   |   | $ | 55,291 |   |   | $ | (28 | ) |
| Asset-backed      securities                |   |                                                                                                      | 1,530  |   |                                                                                                    |   | (7     | )                                                      |   |   | — |   |   |   | — |   |   |   | 1,530 |   |   |   | (7 | ) |
| Total                                       |   | $                                                                                                         | 56,821 |   |                                                                                                    | $      | (35    | )                                                      |   | $ | — |   |   | $ | — |   |   | $ | 56,821 |   |   | $ | (35 | ) |

|                   |   | Securities      heldin      a loss positionfor      less than12 months      atJune      28, 2009 |   |   | Securities      heldin      a loss positionfor      12 monthsor      more atJune      28, 2009 |   |   | Total      in a loss positionat      June 28, 2009 |   |
|------------------------|--------|-------------------------------------------------------------------------------------------------------|--------|--------|-----------------------------------------------------------------------------------------------------|--------|--------|----------------------------------------------------|--------|
|                   |   | MarketValue                                                                                           |   |   | GrossUnrealizedLosses                                                                               |   |   | MarketValue                                        |   |   | GrossUnrealizedLosses |   |   | MarketValue |   |   | GrossUnrealizedLosses |   |
| Equity      securities |   | $                                                                                                     | 18,428 |   |                                                                                                | $      | (1,766 | )                                                  |   | $ | — |   |   | $ | — |   |   | $ | 18,428 |   |   | $ | (1,766 | ) |
| Total                  |   | $                                                                                                     | 18,428 |   |                                                                                                | $      | (1,766 | )                                                  |   | $ | — |   |   | $ | — |   |   | $ | 18,428 |   |   | $ | (1,766 | ) |

| Contractual      Maturity (1)   |   | AmortizedCost |    |   | EstimatedMarket      Value |   |
|---------------------------------|--------|---------------|---------|--------|----------------------------|--------|
| Due      in 1 year or less |   | $             | 259,893 |   |                       | $      | 260,727 |   |
| Due      in 1-2 years      |   |          | 43,849  |   |                       |   | 45,158 |   |
| Due      in 2-5 years      |   |          | 79      |   |                       |   | 84 |   |
| Due      after 5 years     |   |          | 25,737  |   |                       |   | 30,754 |   |
| Total      investments          |   | $             | 329,558 |   |                       | $      | 336,723 |   |

|   | (1) | Contractual      maturity for asset-backed and mortgage-backed securities was based on      initial contractual maturity dates. |
|--------|-----|---------------------------------------------------------------------------------------------------------------------------------|

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|                                        |   | Total  |    |   | Quoted      Prices in Active Markets for Identical Assets(Level 1) |   |    | Significant      Other Observable Inputs(Level 2) |   |   | Significant      Unobservable Inputs(Level 3) |   |
|---------------------------------------------|--------|--------|---------|--------|-------------------------------------------------------------------------|--------|---------|--------------------------------------------------------|--------|--------|----------------------------------------------------|--------|
| U.S.      government and agency obligations |   | $      | 305,862 |   |                                                                    | $      | 255,439 |                                                   |   | $      | 50,423                                             |   |   | $ | — |   |
| Commercial      paper                       |   |   | 4,998   |   |                                                                    |   | — |                                                   |   |   | 4,998                                              |   |   |   | — |   |
| Corporate      debt                         |   |   | 23      |   |                                                                    |   | — |                                                   |   |   | 23                                                 |   |   |   | — |   |
| Mortgage-backed      securities             |   |   | 16,102  |   |                                                                    |   | — |                                                   |   |   | —                                            |   |   |   | 16,102 |   |
| Asset-backed      securities                |   |   | 14,736  |   |                                                                    |   | — |                                                   |   |   | —                                            |   |   |   | 14,736 |   |
| Notes      receivable                       |   |   | 2,050   |   |                                                                    |   | 2,050   |                                                   |   |   | —                                            |   |   |   | — |   |
| Equity      securities                      |   |   | 18,522  |   |                                                                    |   | 18,518  |                                                   |   |   | —                                            |   |   |   | 4 |   |
| Total      securities at fair value         |   | $      | 362,293 |   |                                                                    | $      | 276,007 |                                                   |   | $      | 55,444                                             |   |   | $ | 30,842 |   |

The Company is exposed to financial market risks, includingfluctuations in interest rates, foreign currency exchange rates and market valuerisk related to its investments. The Company uses derivative financialinstruments primarily to mitigate these risks, and as part of its strategicinvestment program. In the normal course of business, the Company also facesrisks that are either non-financial or non-quantifiable. Such risks principallyinclude country risk, credit risk and legal risk, and are not discussed orquantified in the following analyses.  In prior periods, the Companyhas designated certain derivatives as fair value hedges or cash flow hedgesqualifying for hedge accounting treatment.  As of December 27, 2009and June 28, 2009, the Company had currency forward contracts and a foreigncurrency swap contract which were not designated as accountinghedges.  In addition, at December 27, 2009, the Company had a putoption on one of the Company’s strategic investments (See Note 3,“Investments”).

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|                                                                        |   | Derivative      Assets December      27, 2009 |   | Derivative      Liabilities December      27, 2009 |    |
|-----------------------------------------------------------------------------|--------|----------------------------------------------------|--------|----------------------------------------------------|---------|
| Derivatives      Not Designated as Hedging Instruments Under FASB ASC850-10 |   | Balance      Sheet Location                        |   | Fair      Value                                    |    | Balance      Sheet Location |   | Fair      Value |   |
|                                                                        |   |                                               |   |                                               |    |   |   |   |   |
|  Put      option                                                       |   |  Other      assets                            |   | $                                                  | 1,950   |   |   |   |   |   |
| Currency      forward contracts                                             |   | Prepaid      expenses and other receivables        |   |                                               | 692     |   | Other      accrued expenses |   | $ | — |   |
| Foreign      currency swap contracts                                        |   | Other      assets                                  |   |                                               | — |   | Other      accrued expenses |   |   | (192 | ) |
| Total                                                                       |   |                                               |   | $                                                  | 2,642   |   |   |   | $ | (192 | ) |

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|  Derivatives      Not Designated as Hedging Instruments Under FASB ASC850-10 |   |   Location      of Gain or (Loss) Recognized in Income on Derivatives |   |  Amount      of Gain or (Loss) Recognized in Income on Derivatives |   |
|-----------------------------------------------------------------------------------|--------|---------------------------------------------------------------------------------|--------|-------------------------------------------------------------------------|--------|
|                                                                              |   |                                                                            |   |                                                                    |   |
| Put      option                                                                   |   | Other      expense                                                              |   | $                                                                       | (199   | ) |
| Currency      forward contracts                                                   |   | Other      expense                                                              |   |                                                                    | 498    |   |
| Foreign      currency swap contracts                                              |   | Other      expense                                                              |   |                                                                    | 63     |   |
| Total                                                                             |   |                                                                            |   | $                                                                       | 362    |   |

|  Derivatives      Not Designated as Hedging Instruments Under FASB ASC850-10 |   |   Location      of Gain or (Loss) Recognized in Income on Derivatives |   |  Amount      of Gain or (Loss) Recognized in Income on Derivatives |   |
|-----------------------------------------------------------------------------------|--------|---------------------------------------------------------------------------------|--------|-------------------------------------------------------------------------|--------|
|                                                                              |   |                                                                            |   |                                                                    |   |
| Put      option                                                                   |   | Other      expense                                                              |   | $                                                                       | 1,950  |   |
| Currency      forward contracts                                                   |   | Other      expense                                                              |   |                                                                    | (766   | ) |
| Foreign      currency swap contracts                                              |   | Other      expense                                                              |   |                                                                    | (64    | ) |
| Total                                                                             |   |                                                                            |   | $                                                                       | 1,120  |   |

|                                            |   | Total  |   |   | Quoted      Prices in Active Markets for Identical Assets(Level 1) |   |    | Significant      Other Observable Inputs(Level 2) |   |   | Significant      Unobservable Inputs(Level 3) |   |
|-------------------------------------------------|--------|--------|--------|--------|-------------------------------------------------------------------------|--------|---------|--------------------------------------------------------|--------|--------|----------------------------------------------------|--------|
| Put      Option                                 |   | $      | 1,950  |   |                                                                    | $      | — |                                                   |   | $      | —                                            |   |   | $ | 1,950 |   |
| Foreign      Currency Derivatives               |   |   |   |   |                                                                    |   |    |                                                   |   |   |                                               |   |   |   |   |   |
| Assets                                          |   |   | 692    |   |                                                                    |   | — |                                                   |   |   | 692                                                |   |   |   | — |   |
| Liabilities                                     |   |   | (192   | )      |                                                                    |   | — |                                                   |   |   | (192                                               | )      |   |   | — |   |
| Total      derivative instruments at fair value |   | $      | 2,450  |   |                                                                    | $      | — |                                                   |   | $      | 500                                                |   |   | $ | 1,950 |   |

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|                                               |   | Six      Months Ended  |    |
|----------------------------------------------------|--------|------------------------|---------|
|                                               |   | December      27, 2009 |    |   | December      28, 2008 |   |
| Trade      accounts receivable                     |   | $                      | (27,694 | ) |   | $ | 13,433 |   |
| Inventories                                        |   |                   | (1,327  | ) |   |   | (8,744 | ) |
| Prepaid      expenses and other receivables        |   |                   | (17,248 | ) |   |   | (16,200 | ) |
| Accounts      payable                              |   |                   | 19,033  |   |   |   | (12,282 | ) |
| Accrued      salaries, wages and other commissions |   |                   | 2,697   |   |   |   | (10,068 | ) |
| Deferred      compensation                         |   |                   | 2,836   |   |   |   | 694 |   |
| Accrued      income taxes payable                  |   |                   | (6,076  | ) |   |   | 9,523 |   |
| Other      accrued expenses                        |   |                   | (45,758 | ) |   |   | (13,004 | ) |
| Changes      in operating assets and liabilities   |   | $                      | (73,537 | ) |   | $ | (36,648 | ) |

|                                                                                                  |   | Six      Months Ended  |   |
|-------------------------------------------------------------------------------------------------------|--------|------------------------|--------|
|                                                                                                  |   | December      27, 2009 |   |   | December      28, 2008 |   |
| Non-cash      investing activities:                                                                   |   |                   |   |   |   |   |
| Increase      (decrease) in liabilities accrued for property, plant and equipment      purchases |   | $                      | 657    |   |   | $ | (281 | ) |

|                   |   | December       27, 2009 |    |   | June 28,2009 |   |
|------------------------|--------|------------------------------|---------|--------|-------------------|--------|
| Raw      materials     |   | $                            | 38,072  |   |              | $      | 32,717 |   |
| Work-in-process        |   |                         | 73,175  |   |              |   | 66,613 |   |
| Finished      goods    |   |                         | 46,726  |   |              |   | 51,791 |   |
| Total      inventories |   | $                            | 157,973 |   |              | $      | 151,121 |   |

|                                             |   |                             |             |   | December 27,      2009 |   |
|--------------------------------------------------|--------|----------------------------------|------------------|--------|-----------------------------|--------|
|                                             |   | Amortization      Periods(Years) |             |   | Gross      CarryingAmount   |   |   | AccumulatedAmortization |   |   | Net |   |
| Completed      technology                        |   |                             | 4 - 12 |   |                        | $      | 29,679 |   |   | $ | (21,487 | ) |   | $ | 8,192 |   |
| Customer      lists                              |   |                             | 5 - 12 |   |                        |   | 5,330 |   |   |   | (4,643 | ) |   |   | 687 |   |
| Intellectual      property and other             |   |                             | 5 - 15 |   |                        |   | 7,963 |   |   |   | (7,209 | ) |   |   | 754 |   |
| Total      acquisition-related intangible assets |   |                             |             |   |                        | $      | 42,972 |   |   | $ | (33,339 | ) |   | $ | 9,633 |   |

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|                                             |   |                             |             |   | June      28, 2009        |   |
|--------------------------------------------------|--------|----------------------------------|------------------|--------|---------------------------|--------|
|                                             |   | Amortization      Periods(Years) |             |   | Gross      CarryingAmount |   |   | AccumulatedAmortization |   |   | Net |   |
| Completed      technology                        |   |                             | 4 - 12 |   |                      | $      | 29,679 |   |   | $ | (19,593 | ) |   | $ | 10,086 |   |
| Customer      lists                              |   |                             | 5 - 12 |   |                      |   | 5,330 |   |   |   | (4,437 | ) |   |   | 893 |   |
| Intellectual      property and other             |   |                             | 5 - 15 |   |                      |   | 7,963 |   |   |   | (7,121 | ) |   |   | 842 |   |
| Total      acquisition-related intangible assets |   |                             |             |   |                      | $      | 42,972 |   |   | $ | (31,151 | ) |   | $ | 11,821 |   |

| Business      Segments:       |   | December      27, 2009 |    |   | June      28, 2009 |   |
|-------------------------------|--------|------------------------|---------|--------|--------------------|--------|
| Power      Management Devices |   | $                      | — |   |               | $      | — |   |
| Energy-Saving      Products   |   |                   | 33,190  |   |               |   | 33,190 |   |
| HiRel                         |   |                   | 18,959  |   |               |   | 18,959 |   |
| Enterprise      Power         |   |                   | 22,806  |   |               |   | 22,806 |   |
| Automotive      Products      |   |                   | — |   |               |   | — |   |
| Intellectual      Property    |   |                   | — |   |               |   | — |   |
| Total      goodwill           |   | $                      | 74,955  |   |               | $      | 74,955 |   |

|                                    |   | December 27,      2009 |   |   | June      28, 2009 |   |
|-----------------------------------------|--------|-----------------------------|--------|--------|--------------------|--------|
| Sales      returns                      |   | $                           | 22,361 |   |               | $      | 21,036 |   |
| Accrued      accounting and legal costs |   |                        | 11,722 |   |               |   | 60,713 |   |
| Deferred      revenue                   |   |                        | 8,097  |   |               |   | 7,885 |   |
| Accrued      employee benefits          |   |                        | 3,843  |   |               |   | 3,995 |   |
| Accrued      Divestiture liability      |   |                        | 1,742  |   |               |   | 2,410 |   |
| Accrued      warranty                   |   |                        | 1,850  |   |               |   | 1,767 |   |
| Accrued      utilities                  |   |                        | 1,518  |   |               |   | 1,563 |   |
| Accrued      sales and other taxes      |   |                        | 2,205  |   |               |   | 1,117 |   |
| Short-term      severance liability     |   |                        | 5,145  |   |               |   | 5,234 |   |
| Other                                   |   |                        | 9,809  |   |               |   | 8,323 |   |
| Total      other accrued expenses       |   | $                           | 68,292 |   |               | $      | 114,043 |   |

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| Accrued      warranty, June 28, 2009                    |   | $      | 1,767 |   |
|--------------------------------------------------------------|--------|--------|-------|--------|
| Accruals      for warranties issued during the period        |   |   | 1,806 |   |
| Changes      in estimates related to pre-existing warranties |   |   | (745  | )      |
| Warranty      claim settlements                              |   |   | (978  | )      |
| Accrued      warranty, December 27, 2009                |   | $      | 1,850 |   |

|                                          |   | December      27, 2009 |   |   | June      28, 2009 |   |
|-----------------------------------------------|--------|------------------------|--------|--------|--------------------|--------|
| Income      taxes payable                     |   | $                      | 30,263 |   |               | $      | 35,197 |   |
| Divested      entities’ tax obligations |   |                   | 7,212  |   |               |   | 7,283 |   |
| Deferred      compensation                    |   |                   | 7,521  |   |               |   | 6,543 |   |
| Other                                         |   |                   | 3,356  |   |               |   | 4,032 |   |
| Total      other long-term liabilities        |   | $                      | 48,352 |   |               | $      | 53,055 |   |

| Long-term      Liabilities                                                               |   | Total  |   |   | Quoted      Prices in Active Markets for Identical Assets(Level 1) |   |   | Significant      Other Observable Inputs(Level 2) |   |   | Significant      Unobservable Inputs(Level 3) |   |
|-----------------------------------------------------------------------------------------------|--------|--------|--------|--------|-------------------------------------------------------------------------|--------|--------|--------------------------------------------------------|--------|--------|----------------------------------------------------|--------|
| Employee      deferred compensation plan                                                      |   | $      | 6,498  |   |                                                                    | $      | 6,498  |                                                   |   | $      | —                                            |   |   | $ | — |   |
| Assets      of  employee deferred compensation plan (reported in other      assets) |   |   | 7,505  |   |                                                                    |   | 7,505  |                                                   |   |   | —                                            |   |   |   | — |   |

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|                                     |   | Shares |   |   | Weighted      AverageOption      ExercisePrice      per Share |   |   | Weighted      AverageGrant      DateFair      Value per Share |   |   | AggregateIntrinsic      Value |   |
|------------------------------------------|--------|--------|--------|--------|---------------------------------------------------------------|--------|--------|---------------------------------------------------------------|--------|--------|-------------------------------|--------|
| Outstanding,      June 28, 2009     |   |   | 8,248  |   |                                                          | $      | 30.40  |                                                          |   |   | —                       |   |   | $ | 3,738 |   |
| Granted                                  |   |   | 166    |   |                                                          | $      | 18.79  |                                                          |   | $      | 5.70                          |   |   |   | — |   |
| Exercised                                |   |   | (111   | )      |                                                          | $      | 14.30  |                                                          |   |   | —                       |   |   | $ | 603 |   |
| Expired      or forfeited                |   |   | (1,363 | )      |                                                          | $      | 34.45  |                                                          |   |   | —                       |   |   |   | — |   |
| Outstanding,      December 27, 2009 |   |   | 6,940  |   |                                                          | $      | 29.58  |                                                          |   |   | —                       |   |   | $ | 20,716 |   |

|                                     |   | RestrictedStockUnits |   |   | Weighted      AverageGrant      DateFair      Value per Share |   |    | AggregateIntrinsic      Value |   |
|------------------------------------------|--------|----------------------|--------|--------|---------------------------------------------------------------|--------|---------|-------------------------------|--------|
| Outstanding,      June 28, 2009     |   |                 | 355    |   |                                                          | $      | 17.84   |                          |   | $ | 5,215 |   |
| Granted                                  |   |                 | 168    |   |                                                          | $      | 19.06   |                          |   |   | — |   |
| Vested                                   |   |                 | (46    | )      |                                                          | $      | 17.26   |                          |   | $ | 791 |   |
| Expired      or forfeited           |   |                 | (2     | )      |                                                          |   | — |                          |   |   | — |   |
| Outstanding,      December 27, 2009 |   |                 | 475    |   |                                                          | $      | 18.32   |                          |   | $ | 10,388 |   |

|                                                           |   | As      of             |   |
|----------------------------------------------------------------|--------|------------------------|--------|
|                                                           |   | December      27, 2009 |   |   | June      28, 2009 |   |
| Options      exercisable                                       |   |                   | 4,225  |   |   |   | 5,179 |   |
| Options      available for grant                               |   |                   | 2,612  |   |   |   | 2,408 |   |
| Total      reserved common stock shares for stock option plans |   |                   | 10,027 |   |   |   | 11,011 |   |

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|                                        |   | Three      Months Ended |   |   | Six      Months Ended  |   |
|---------------------------------------------|--------|-------------------------|--------|--------|------------------------|--------|
|                                        |   | December      27, 2009  |   |   | December      28, 2008 |   |   | December      27, 2009 |   |   | December      28, 2008 |   |
| Cost      of sales                          |   | $                       | 430    |   |                   | $      | — |   |   | $ | 850 |   |   | $ | 134 |   |
| Selling      and administrative expense     |   |                    | 1,788  |   |                   |   | 897 |   |   |   | 3,461 |   |   |   | 1,405 |   |
| Research      and development expense       |   |                    | 373    |   |                   |   | 284 |   |   |   | 819 |   |   |   | 832 |   |
| Total      stock-based compensation expense |   | $                       | 2,591  |   |                   | $      | 1,181 |   |   | $ | 5,130 |   |   | $ | 2,371 |   |

|                         |   | December      27, 2009 |   |   | December      28, 2008 |   |
|------------------------------|--------|------------------------|--------|--------|------------------------|--------|
| Expected      life           |   | 3.5      years         |   |   | 3.9      years         |   |
| Risk      free interest rate |   |                   | 1.4    | %      |                   |   | 2.5 | % |
| Volatility                   |   |                   | 39.3   | %      |                   |   | 54.5 | % |
| Dividend      yield          |   |                   | 0.0    | %      |                   |   | 0.0 | % |

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| ·   | Newport      Fabrication Facility Consolidation |
|--------------------|-------------------------------------------------|

| ·   | El      Segundo Fabrication FacilityClosure |
|--------------------|---------------------------------------------|

| ·   | Research      and Development Facility ClosureInitiative |
|--------------------|----------------------------------------------------------|

| ·   | Termination      of the Vishay Intertechnology, Inc. (“Vishay”) transition product services      agreement (“TPSA”) (PCSDivestiture) |
|--------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------|

|                                                                               |   | Three      Months Ended |    |   | Six      Months Ended  |   |
|------------------------------------------------------------------------------------|--------|-------------------------|---------|--------|------------------------|--------|
|                                                                               |   | December      27, 2009  |    |   | December      28, 2008 |   |   | December      27, 2009 |   |   | December      28, 2008 |   |
| Reported      in asset impairment, restructuring and other charges                 |   | $                       | — |   |                   | $      | 48,885 |   |   | $ | — |   |   | $ | 48,885 |   |
|     Severance      and workforce reduction costs (adjustments) |   |                    | (49     | )      |                   |   | 31 |   |   |   | 42 |   |   |   | 382 |   |
|     Other      Charges                                         |   |                    | 19      |   |                   |   | 60 |   |   |   | 95 |   |   |   | 180 |   |
| Total      asset impairment, restructuring and other charges                       |   | $                       | (30     | )      |                   | $      | 48,976 |   |   | $ | 137 |   |   | $ | 49,447 |   |

|                                                                                                     |   | Newport,      Wales |    |   | El      Segundo |   |    | Research      & Development and PCS Divestiture |   |
|----------------------------------------------------------------------------------------------------------|--------|---------------------|---------|--------|-----------------|--------|---------|-----------------------------------------------------|--------|
| Accrued      severance and workforce reduction costs, June 28, 2009                                      |   | $                   | 359     |   |            | $      | 3,535   |                                                |   | $ | 376 |   |
| Accrued      during the six months and charged to asset impairment, restructuring and      other charges |   |                | — |   |            |   | 177     |                                                |   |   | — |   |
| Accrued      during the six months and charged to operating expenses                                     |   |                | — |   |            |   | 675     |                                                |   |   | 32 |   |
| Costs      paid during the six months                                                                    |   |                | (186    | )      |            |   | (2      | )                                                   |   |   | (216 | ) |
| Foreign      exchange gains                                                                              |   |                | (6      | )      |            |   | — |                                                |   |   | — |   |
| Change      in provision                                                                                 |   |                | — |   |            |   | — |                                                |   |   | (135 | ) |
| Accrued      severance and workforce reduction costs, December 27, 2009                                  |   | $                   | 167     |   |            | $      | 4,385   |                                                |   | $ | 57 |   |

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|                                                                               |   | Three      Months Ended December 27, 2009 |    |
|------------------------------------------------------------------------------------|--------|-------------------------------------------|---------|
|                                                                               |   | Newport,      Wales                       |    |   | El      Segundo (Adjustments) |   |   | Research      & Development Facility |   |   | PCS      Divestiture (Adjustments) |   |   | Total |   |
| Asset      impairment charges                                                      |   | $                                         | — |   |   | $ | — |   |   | $ | — |   |   | $ | — |   |   | $ | — |   |
|     Severance      and workforce reduction costs (adjustments) |   |                                      | — |   |   |   | (25 | ) |   |   | — |   |   |   | (24 | ) |   |   | (49 | ) |
|     Other      charges                                         |   |                                      | — |   |   |   | — |   |   |   | 19 |   |   |   | — |   |   |   | 19 |   |
| Total      asset impairment, restructuring and other charges                       |   | $                                         | — |   |   | $ | (25 | ) |   | $ | 19 |   |   | $ | (24 | ) |   | $ | (30 | ) |

|                                                                 |   | Three      Months Ended December 28, 2008 |    |
|----------------------------------------------------------------------|--------|-------------------------------------------|---------|
|                                                                 |   | Newport,      Wales                       |    |   | El      Segundo |   |   | Research      & Development Facility |   |   | PCS      Divestiture (Adjustments) |   |   | Total |   |
| Asset      impairment charges                                        |   | $                                         | 48,885  |   |   | $ | — |   |   | $ | — |   |   | $ | — |   |   | $ | 48,885 |   |
|     Severance      and workforce reduction costs |   |                                      | 1       |   |   |   | — |   |   |   | 30 |   |   |   | — |   |   |   | 31 |   |
|     Other      charges                           |   |                                      | — |   |   |   | — |   |   |   | 60 |   |   |   | — |   |   |   | 60 |   |
| Total      asset impairment, restructuring and other charges         |   | $                                         | 48,886  |   |   | $ | — |   |   | $ | 90 |   |   | $ | — |   |   | $ | 48,976 |   |

|                                                                               |   | Six      Months Ended December 27, 2009 |    |
|------------------------------------------------------------------------------------|--------|-----------------------------------------|---------|
|                                                                               |   | Newport,      Wales                     |    |   | El      Segundo |   |   | Research      & Development Facility |   |   | PCS      Divestiture (Adjustments) |   |   | Total |   |
| Asset      impairment charges                                                      |   | $                                       | — |   |   | $ | — |   |   | $ | — |   |   | $ | — |   |   | $ | — |   |
|     Severance      and workforce reduction costs (adjustments) |   |                                    | — |   |   |   | 177 |   |   |   | — |   |   |   | (135 | ) |   |   | 42 |   |
|     Other      charges                                         |   |                                    | — |   |   |   | — |   |   |   | 95 |   |   |   | — |   |   |   | 95 |   |
| Total      asset impairment, restructuring and other charges                       |   | $                                       | — |   |   | $ | 177 |   |   | $ | 95 |   |   | $ | (135 | ) |   | $ | 137 |   |

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|                                                                 |   | Six      Months Ended December 28, 2008 |    |
|----------------------------------------------------------------------|--------|-----------------------------------------|---------|
|                                                                 |   | Newport,      Wales                     |    |   | El      Segundo |   |   | Research      & Development Facility |   |   | PCS      Divestiture |   |   | Total |   |
| Asset      impairment charges                                        |   | $                                       | 48,885  |   |   | $ | — |   |   | $ | — |   |   | $ | — |   |   | $ | 48,885 |   |
|     Severance      and workforce reduction costs |   |                                    | 1       |   |   |   | — |   |   |   | 381 |   |   |   | — |   |   |   | 382 |   |
|     Other      charges                           |   |                                    | — |   |   |   | — |   |   |   | 180 |   |   |   | — |   |   |   | 180 |   |
| Total      asset impairment, restructuring and other charges         |   | $                                       | 48,886  |   |   | $ | — |   |   | $ | 561 |   |   | $ | — |   |   | $ | 49,447 |   |

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|   | • | The      PMD segment consists of the Company’s discrete power MOSFETs, excluding      its Low Voltage DirectFET®      products.  These products are multi-market in nature and      therefore add value across a wide-range of applications and      markets.  The PMD segment targets power supply, data processing,      and industrial and commercial battery-powered  applications. |
|--------|---------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | • | The      ESP segment includes the Company’s HVICs, digital control ICs,      micro-electronic relay ICs, motion control modules and      IGBTs.  ESP targets solutions in variable-speed motion controls      for washing machines, refrigerators, air conditioners, fans, pumps and      compressors; advanced lighting products such as fluorescent lamps, high      intensity discharge lamps, cold cathode fluorescent tubes and      light-emitting diodes; and consumer applications such as plasma      televisions, liquid crystal display (“LCD”) television and class D      audio systems.  These products provide multiple technologies to      deliver completely integrated design platforms specific to these      customers. |
|--------|---------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | • | The      HiRel segment includes the Company’s RAD-Hard™ power management modules,      RAD-Hard™ power MOSFETs, RAD-Hard™ ICs, and the Company’s RAD-Hard™ DC/DC      converters as well as other high-reliability power components that address      power management requirements in satellites, launch vehicles, aircraft,      ships, submarines, and other defense and high-reliability applications      including an expanding interest in heavy industry and biomedical      applications.  HiRel’s strategy is to apply multiple      technologies to deliver highly efficient power delivery in applications      that operate in naturally harsh environments like space and undersea as      well as applications that require a high level of reliability to address      issues of safety, cost of failure or difficulty in replacement, like      medical applications. |
|--------|---------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | • | The      EP segment includes the Company’s LVICs (including XPhase®      and SupIRBuck™), iPOWIR integrated Power Stages and low-voltage      DirectFET®      Power MOSFETs.  Products within the EP segment are focused on      data center applications (such as servers, storage, routers and switches),      notebooks, graphics cards, gaming consoles and other computing and      consumer applications.  Generally, these products contain      multiple differentiated technologies and are targeted to be combined as      system solutions to the Company’s customers for their next generation      applications that require a higher level of performance and technical      service. |
|--------|---------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

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|   | • | The      AP segment consists of the Company’s automotive qualified HVICs,      intelligent power switch ICs, power MOSFETs including DirectFET®      and IGBTs.  These products were previously reported in the ESP      and PMD segments.  The AP segment products are focused solely on      automotive customers and applications that require a high level of      reliability, quality and performance.  The Company’s automotive      product portfolio provides high performance and energy saving solutions      for a broad variety of automotive systems, ranging from typical 12V power      net applications up to 1200V hybrid electric vehicle power management      solutions.  The Company’s automotive expertise comprises      supplying products for AC and DC motor drives of all power classes,      actuator drivers, automotive lighting (such as high intensity discharge      lamps), direct fuel injection in diesel and gasoline engines, hybrid      electric vehicle power train and peripheral systems in micro, mild, full      and plug hybrids or electric vehicles, as well as for body electronic      systems like glow plugs, Positive Temperature Coefficient (“PTC”) heater,      electric power steering, fuel pumps, Heating Ventilation and Air      Conditioning (“HVAC”) and rear wipers.  The Company’s automotive      designs address both application-specific solutions (application-specific      integrated circuits (“ASICs”) and application-specific standard parts      (“ASSPs”)) and generic high volume products for multi original equipment      manufacturer (“OEM”) platformusage. |
|--------|---------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | • | The      IP segment includes revenues from the sale of the Company’s technologies      and manufacturing process know-how, in addition to the operating results      of the Company’s patent licensing and settlements of claims brought      against third parties.  IP segment revenue is dependent on the      unexpired portion of the Company’s licensed MOSFET      patents.  Some of the Company’s power MOSFET patents have      expired in calendar year 2007 and the broadest have expired in calendar      year 2008.  Certain of the licensed MOSFET patents remain in      effect through 2010.  With the expiration of the Company’s      broadest MOSFET patents, most of its IP segment revenue ceased during the      fourth quarter of fiscal year 2008; however, the Company continues, from      time to time, to enter into opportunistic licensing arrangements that it      believes are consistent with its business strategy.  The      strategy within the IP segment is to concentrate on creating and using the      Company’s IP primarily for the design and development of new value-added      products, along with opportunisticlicensing. |
|--------|---------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | • | For      fiscal year 2009 the TS segment consists of the operating results of the      transition services, including wafer fabrication, assembly, product      supply, test and other manufacturing-related support services being      supplied to Vishay, as part of the Sale of the Power Control Systems      Business (“PCS Business”) (“Divestiture”).  After ongoing      ramp-down in many of such services, Vishay terminated most wafer      processing services under the TPSA effective April 30,      2009.  The revenue from such terminating services represents all      but an immaterial amount of the remaining revenue reported under the TS      segment.  The immaterial amount of revenue generated from these      services during fiscal year 2010 is reported in the PMD      segment. |
|--------|---------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

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|                                 |   | Three      Months EndedDecember 27,      2009 |    |   | Three      Months EndedDecember 28,      2008 |   |
|--------------------------------------|--------|----------------------------------------------------|---------|--------|----------------------------------------------------|--------|
| Business      Segment           |   | Revenues                                           |    |   | Percentageof      Total                            |   |   | GrossMargin |   |   | Revenues |   |   | Percentageof      Total |   |   | GrossMargin |   |
| Power      Management Devices        |   | $                                                  | 75,994  |   |                                               |   | 36.1 | % |   |   | 9.9 | % |   | $ | 64,134 |   |   |   | 33.8 | % |   |   | 19.4 | % |
| Energy-Saving      Products          |   |                                               | 40,358  |   |                                               |   | 19.2 |   |   |   | 36.4 |   |   |   | 39,422 |   |   |   | 20.8 |   |   |   | 43.3 |   |
| HiRel                                |   |                                               | 39,797  |   |                                               |   | 18.9 |   |   |   | 50.9 |   |   |   | 39,433 |   |   |   | 20.8 |   |   |   | 56.7 |   |
| Automotive      Products             |   |                                               | 16,935  |   |                                               |   | 8.1 |   |   |   | 13.7 |   |   |   | 13,474 |   |   |   | 7.1 |   |   |   | 27.9 |   |
| Enterprise      Power                |   |                                               | 33,741  |   |                                               |   | 16.0 |   |   |   | 43.2 |   |   |   | 19,350 |   |   |   | 10.2 |   |   |   | 42.4 |   |
| Ongoing      customer segments total |   |                                               | 206,825 |   |                                               |   | 98.4 |   |   |   | 28.7 |   |   |   | 175,813 |   |   |   | 92.7 |   |   |   | 36.3 |   |
| Intellectual      Property           |   |                                               | 3,419   |   |                                               |   | 1.6 |   |   |   | 100.0 |   |   |   | 2,594 |   |   |   | 1.3 |   |   |   | 100.0 |   |
| Ongoing      segments total          |   |                                               | 210,244 |   |                                               |   | 100.0 |   |   |   | 29.9 |   |   |   | 178,407 |   |   |   | 94.0 |   |   |   | 37.3 |   |
| Transition      Services             |   |                                               | — |   |                                               |   | — |   |   |   | — |   |   |   | 11,339 |   |   |   | 6.0 |   |   |   | (18.6 | ) |
| Consolidated      total              |   |  $                                            | 210,244 |   |                                               |   | 100.0 | % |   |   | 29.9 | % |   | $ | 189,746 |   |   |   | 100.0 | % |   |   | 33.9 | % |

|                                 |   | Six      Months EndedDecember 27,      2009 |    |   | Six      Months EndedDecember 28,      2008 |   |
|--------------------------------------|--------|--------------------------------------------------|---------|--------|--------------------------------------------------|--------|
| Business      Segment           |   | Revenues                                         |    |   | Percentageof      Total                          |   |   | GrossMargin |   |   | Revenues |   |   | Percentageof      Total |   |   | GrossMargin |   |
| Power      Management Devices        |   | $                                                | 142,518 |   |                                             |   | 36.6 | % |   |   | 7.8 | % |   | $ | 137,912 |   |   |   | 31.7 | % |   |   | 20.5 | % |
| Energy-Saving      Products          |   |                                             | 78,221  |   |                                             |   | 20.1 |   |   |   | 35.5 |   |   |   | 85,558 |   |   |   | 19.7 |   |   |   | 43.1 |   |
| HiRel                                |   |                                             | 72,406  |   |                                             |   | 18.6 |   |   |   | 49.7 |   |   |   | 76,785 |   |   |   | 17.7 |   |   |   | 54.7 |   |
| Automotive      Products             |   |                                             | 30,127  |   |                                             |   | 7.7 |   |   |   | 15.7 |   |   |   | 31,067 |   |   |   | 7.2 |   |   |   | 31.0 |   |
| Enterprise      Power                |   |                                             | 61,186  |   |                                             |   | 15.7 |   |   |   | 41.6 |   |   |   | 56,629 |   |   |   | 13.0 |   |   |   | 42.6 |   |
| Ongoing      customer segments total |   |                                             | 384,458 |   |                                             |   | 98.7 |   |   |   | 27.3 |   |   |   | 387,951 |   |   |   | 89.3 |   |   |   | 36.3 |   |
| Intellectual      Property           |   |                                             | 5,157   |   |                                             |   | 1.3 |   |   |   | 100.0 |   |   |   | 22,561 |   |   |   | 5.2 |   |   |   | 100.0 |   |
| Ongoing      segments total          |   |                                             | 389,615 |   |                                             |   | 100.0 |   |   |   | 28.3 |   |   |   | 410,512 |   |   |   | 94.5 |   |   |   | 39.8 |   |
| Transition      Services             |   |                                             | — |   |                                             |   | — |   |   |   | — |   |   |   | 23,708 |   |   |   | 5.5 |   |   |   | (11.4 | ) |
| Consolidated      total              |   | $                                                | 389,615 |   |                                             |   | 100.0 | % |   |   | 28.3 | % |   | $ | 434,220 |   |   |   | 100.0 | % |   |   | 37.0 | % |

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|                                           |   | Three      Months EndedDecember 27,      2009 |    |
|------------------------------------------------|--------|----------------------------------------------------|---------|
|                                           |   | Income(Numerator)                                  |    |   | Shares(Denominator) |   |   | Per      ShareAmount |   |
| Net      income per common share—basic   |   | $                                                  | 28,318  |   |   |   | 71,605 |   |   | $ | 0.40 |   |
| Effect      of dilutive securities:            |   |                                               |    |   |   |   |   |   |   |   |   |   |
| Stock      options and restricted stock units  |   |                                               | — |   |   |   | 222 |   |   |   | — |   |
| Net      income per common share—diluted |   | $                                                  | 28,318  |   |   |   | 71,827 |   |   | $ | 0.39 |   |

|                                          |   | Three      Months EndedDecember 28,      2008 |     |
|-----------------------------------------------|--------|----------------------------------------------------|----------|
|                                          |   | Loss(Numerator)                                    |     |   | Shares(Denominator) |   |   | Per      ShareAmount |   |
| Net      loss per common share—basic    |   | $                                                  | (189,752 | ) |   |   | 72,692 |   |   | $ | (2.61 | ) |
| Effect      of dilutive securities:           |   |                                               |     |   |   |   |   |   |   |   |   |   |
| Stock      options and restricted stock units |   |                                               | —  |   |   |   |   |   |   |   | — |   |
| Net      loss per common share—diluted  |   | $                                                  | (189,752 | ) |   |   | 72,692 |   |   | $ | (2.61 | ) |

|                                           |   | Six      Months EndedDecember 27,      2009 |   |
|------------------------------------------------|--------|--------------------------------------------------|--------|
|                                           |   | Income(Numerator)                                |   |   | Shares(Denominator) |   |   | Per      ShareAmount |   |
| Net      income per common share—basic   |   | $                                                | 11,418 |   |   |   | 71,566 |   |   | $ | 0.16 |   |
| Effect      of dilutive securities:            |   |                                             |   |   |   |   |   |   |   |   |   |   |
| Stock      options and restricted stock units  |   |                                             |   |   |   |   | 101 |   |   |   |   |   |
| Net      income per common share—diluted |   | $                                                | 11,418 |   |   |   | 71,667 |   |   | $ | 0.16 |   |

|                                          |   | Six      Months EndedDecember 28,      2008 |     |
|-----------------------------------------------|--------|--------------------------------------------------|----------|
|                                          |   | Loss(Numerator)                                  |     |   | Shares(Denominator) |   |   | Per      ShareAmount |   |
| Net      loss per common share—basic    |   | $                                                | (193,938 | ) |   |   | 72,770 |   |   | $ | (2.67 | ) |
| Effect      of dilutive securities:           |   |                                             |     |   |   |   |   |   |   |   |   |   |
| Stock      options and restricted stock units |   |                                             | —  |   |   |   |   |   |   |   | — |   |
| Net      loss per common share—diluted  |   | $                                                | (193,938 | ) |   |   | 72,770 |   |   | $ | (2.67 | ) |

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ITEM 2.

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|                                                       |   | Three      Months Ended |    |   | Six      Months Ended  |   |
|------------------------------------------------------------|--------|-------------------------|---------|--------|------------------------|--------|
|                                                       |   | December      27, 2009  |    |   | December      28, 2008 |   |   | December      27, 2009 |   |   | December      28, 2008 |   |
| Revenues                                                   |   | $                       | 210.2   |   |                   |   | 100.0 | % |   | $ | 189.7 |   |   |   | 100.0 | % |   | $ | 389.6 |   |   |   | 100.0 | % |   | $ | 434.2 |   |   |   | 100.0 | % |
| Cost      of sales                                         |   |                    | 147.4   |   |                   |   | 70.1 |   |   |   | 125.4 |   |   |   | 66.1 |   |   |   | 279.4 |   |   |   | 71.7 |   |   |   | 273.5 |   |   |   | 63.0 |   |
| Gross      profit                                          |   |                    | 62.8    |   |                   |   | 29.9 |   |   |   | 64.3 |   |   |   | 33.9 |   |   |   | 110.2 |   |   |   | 28.3 |   |   |   | 160.7 |   |   |   | 37.0 |   |
| Selling,      general and administrative expense           |   |                    | 37.3    |   |                   |   | 17.7 |   |   |   | 61.5 |   |   |   | 32.4 |   |   |   | 80.9 |   |   |   | 20.8 |   |   |   | 126.4 |   |   |   | 29.1 |   |
| Research      and development expense                      |   |                    | 24.2    |   |                   |   | 11.5 |   |   |   | 24.9 |   |   |   | 13.1 |   |   |   | 47.0 |   |   |   | 12.1 |   |   |   | 49.6 |   |   |   | 11.4 |   |
| Impairment      of goodwill                                |   |                    | — |   |                   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |
| Amortization      of acquisition-related intangible assets |   |                    | 1.1     |   |                   |   | 0.5 |   |   |   | 1.1 |   |   |   | 0.6 |   |   |   | 2.2 |   |   |   | 0.6 |   |   |   | 2.2 |   |   |   | 0.5 |   |
| Asset      impairment, restructuring and other charges     |   |                    | — |   |                   |   | — |   |   |   | 49.0 |   |   |   | 25.8 |   |   |   | 0.1 |   |   |   | — |   |   |   | — |   |   |   | 11.4 |   |
| Operating      income (loss)                               |   |                    | 0.2     |   |                   |   | 0.1 |   |   |   | (72.2 | ) |   |   | (38.1 | ) |   |   | (20.1 | ) |   |   | (5.1 | ) |   |   | (66.9 | ) |   |   | (15.4 | ) |
| Other      expense, net                                    |   |                    | 1.0     |   |                   |   | 0.5 |   |   |   | 10.6 |   |   |   | 5.6 |   |   |   | 1.8 |   |   |   | 0.5 |   |   |   | 25.2 |   |   |   | 5.8 |   |
| Interest      income (expense), net                        |   |                    | (2.5    | )      |                   |   | (1.2 | ) |   |   | 0.8 |   |   |   | 0.4 |   |   |   | (6.5 | ) |   |   | (1.7 | ) |   |   | (4.3 | ) |   |   | (1.0 | ) |
| Income      (loss) before income taxes                     |   |                    | 1.7     |   |                   |   | 0.8 |   |   |   | (83.6 | ) |   |   | (44.0 | ) |   |   | (15.4 | ) |   |   | (3.9 | ) |   |   | (87.8 | ) |   |   | (20.2 | ) |
| Provision      for (benefit from) income taxes             |   |                    | (26.6   | )      |                   |   | (12.6 | ) |   |   | 106.2 |   |   |   | 56.0 |   |   |   | (26.8 | ) |   |   | (6.9 | ) |   |   | 106.0 |   |   |   | 24.4 |   |
| Net      income (loss)                                     |   | $                       | 28.3    |   |                   |   | 13.5 | % |   | $ | (189.8 | ) |   |   | (100.0 | )% |   | $ | 11.4 |   |   |   | 2.9 | % |   | $ | (193.9 | ) |   |   | (44.7 | )% |

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| (Dollars      in thousands) |   | Three      Months Ended |    |   |                   |   |
|-----------------------------|--------|-------------------------|---------|--------|------------------------|--------|
| Ongoing      Segments       |   | December      27, 2009  |    |   | December      28, 2008 |   |   | Change |   |
| Revenues                    |   | $                       | 210,244 |   |                   | $      | 178,407 |   |   |   | 17.8 | % |
| Gross      Margin           |   | $                       | 62,818  |   |                   | $      | 66,458 |   |   |   | (5.5 | %) |
| Gross      Margin %         |   |                    | 29.9    | %      |                   |   | 37.3 | % |   | (7.4) ppt |   |

| (Dollars      in thousands) |   | Six      Months Ended  |    |   |                   |   |
|-----------------------------|--------|------------------------|---------|--------|------------------------|--------|
| Ongoing      Segments       |   | December      27, 2009 |    |   | December      28, 2008 |   |   | Change |   |
| Revenues                    |   | $                      | 389,615 |   |                   | $      | 410,512 |   |   |   | (5.1 | %) |
| Gross      Margin           |   | $                      | 110,175 |   |                   | $      | 163,436 |   |   |   | (32.6 | %) |
| Gross      Margin %         |   |                   | 28.3    | %      |                   |   | 39.8 | % |   | (11.5) ppt |   |

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| (Dollars      in thousands)         |   | Three      Months Ended |   |   |                   |   |
|-------------------------------------|--------|-------------------------|--------|--------|------------------------|--------|
| Power      Management Devices (PMD) |   | December      27, 2009  |   |   | December      28, 2008 |   |   | Change |   |
| Revenues                            |   | $                       | 75,994 |   |                   | $      | 64,134 |   |   |   | 18.5 | % |
| Gross      Margin                   |   | $                       | 7,528  |   |                   | $      | 12,459 |   |   |   | (39.6 | %) |
| Gross      Margin %                 |   |                    | 9.9    | %      |                   |   | 19.4 | % |   | (9.5) ppt |   |

| (Dollars      in thousands)         |   | Six      Months Ended  |    |   |                   |   |
|-------------------------------------|--------|------------------------|---------|--------|------------------------|--------|
| Power      Management Devices (PMD) |   | December      27, 2009 |    |   | December      28, 2008 |   |   | Change |   |
| Revenues                            |   | $                      | 142,517 |   |                   | $      | 137,912 |   |   |   | 3.3 | % |
| Gross      Margin                   |   | $                      | 11.056  |   |                   | $      | 28,259 |   |   |   | (60.9 | %) |
| Gross      Margin %                 |   |                   | 7.8     | %      |                   |   | 20.5 | % |   | (12.7) ppt |   |

| (Dollars      in thousands)       |   | Three      Months Ended |   |   |                   |   |
|-----------------------------------|--------|-------------------------|--------|--------|------------------------|--------|
| Energy      Saving Products (ESP) |   | December      27, 2009  |   |   | December      28, 2008 |   |   | Change |   |
| Revenues                          |   | $                       | 40,358 |   |                   | $      | 39,422 |   |   |   | 2.4 | % |
| Gross      Margin                 |   | $                       | 14,704 |   |                   | $      | 17,078 |   |   |   | (13.9 | %) |
| Gross      Margin %               |   |                    | 36.4   | %      |                   |   | 43.3 | % |   | (6.9)      ppt |   |

| (Dollars      in thousands)       |   | Six      Months Ended  |   |   |                   |   |
|-----------------------------------|--------|------------------------|--------|--------|------------------------|--------|
| Energy      Saving Products (ESP) |   | December      27, 2009 |   |   | December      28, 2008 |   |   | Change |   |
| Revenues                          |   | $                      | 78,221 |   |                   | $      | 85,558 |   |   |   | (8.6 | %) |
| Gross      Margin                 |   | $                      | 27,800 |   |                   | $      | 36,855 |   |   |   | (24.6 | %) |
| Gross      Margin %               |   |                   | 35.5   | %      |                   |   | 43.1 | % |   | (7.6)      ppt |   |

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| (Dollars      in thousands) |   | Three      Months Ended |   |   |                   |   |
|-----------------------------|--------|-------------------------|--------|--------|------------------------|--------|
| HiRel                       |   | December      27, 2009  |   |   | December      28, 2008 |   |   | Change |   |
| Revenues                    |   | $                       | 39,797 |   |                   | $      | 39,433 |   |   |   | 0.9 | % |
| Gross      Margin           |   | $                       | 20,275 |   |                   | $      | 22,355 |   |   |   | (9.3 | %) |
| Gross      Margin %         |   |                    | 50.9   | %      |                   |   | 56.7 | % |   | (5.8) ppt |   |

| (Dollars      in thousands) |   | Six      Months Ended  |   |   |                   |   |
|-----------------------------|--------|------------------------|--------|--------|------------------------|--------|
| HiRel                       |   | December      27, 2009 |   |   | December      28, 2008 |   |   | Change |   |
| Revenues                    |   | $                      | 72,406 |   |                   | $      | 76,785 |   |   |   | (5.7 | %) |
| Gross      Margin           |   | $                      | 35,981 |   |                   | $      | 42,022 |   |   |   | (14.3 | %) |
| Gross      Margin %         |   |                   | 49.7   | %      |                   |   | 54.7 | % |   | (5.0) ppt |   |

| (Dollars      in thousands)   |   | Three      Months Ended |   |   |                   |   |
|-------------------------------|--------|-------------------------|--------|--------|------------------------|--------|
| Automotive      Products (AP) |   | December      27, 2009  |   |   | December      28, 2008 |   |   | Change |   |
| Revenues                      |   | $                       | 16,935 |   |                   | $      | 13,474 |   |   |   | 25.7 | % |
| Gross      Margin             |   | $                       | 2,325  |   |                   | $      | 3,765 |   |   |   | (38.2 | %) |
| Gross      Margin %           |   |                    | 13.7   | %      |                   |   | 27.9 | % |   | (14.2) ppt |   |

| (Dollars      in thousands)   |   | Six      Months Ended  |   |   |                   |   |
|-------------------------------|--------|------------------------|--------|--------|------------------------|--------|
| Automotive      Products (AP) |   | December      27, 2009 |   |   | December      28, 2008 |   |   | Change |   |
| Revenues                      |   | $                      | 30,127 |   |                   | $      | 31,067 |   |   |   | (3.0 | %) |
| Gross      Margin             |   | $                      | 4,739  |   |                   | $      | 9,638 |   |   |   | (50.8 | %) |
| Gross      Margin %           |   |                   | 15.7   | %      |                   |   | 31.0 | % |   | (15.3) ppt |   |

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| (Dollars      in thousands) |   | Three      Months Ended |   |   |                   |   |
|-----------------------------|--------|-------------------------|--------|--------|------------------------|--------|
| Enterprise      Power (EP)  |   | December      27, 2009  |   |   | December      28, 2008 |   |   | Change |   |
| Revenues                    |   | $                       | 33,741 |   |                   | $      | 19,350 |   |   |   | 74.4 | % |
| Gross      Margin           |   | $                       | 14,566 |   |                   | $      | 8,207 |   |   |   | 77.5 | % |
| Gross      Margin %         |   |                    | 43.2   | %      |                   |   | 42.4 | % |   | 0.8 ppt |   |

| (Dollars      in thousands) |   | Six      Months Ended  |   |   |                   |   |
|-----------------------------|--------|------------------------|--------|--------|------------------------|--------|
| Enterprise      Power (EP)  |   | December      27, 2009 |   |   | December      28, 2008 |   |   | Change |   |
| Revenues                    |   | $                      | 61,186 |   |                   | $      | 56,629 |   |   |   | 8.0 | % |
| Gross      Margin           |   | $                      | 25,443 |   |                   | $      | 24,101 |   |   |   | 5.6 | % |
| Gross      Margin %         |   |                   | 41.6   | %      |                   |   | 42.6 | % |   | (1.0) ppt |   |

| (Dollars      in thousands)     |   | Three      Months Ended |   |   |                   |   |
|---------------------------------|--------|-------------------------|--------|--------|------------------------|--------|
| Intellectual      Property (IP) |   | December      27, 2009  |   |   | December      28, 2008 |   |   | Change |   |
| Revenues                        |   | $                       | 3,419  |   |                   | $      | 2,594 |   |   |   | 31.8 | % |
| Gross      Margin               |   | $                       | 3,419  |   |                   | $      | 2,594 |   |   |   | 31.8 | % |
| Gross      Margin %             |   |                    | 100.0  | %      |                   |   | 100.0 | % |   |   | --- | % |

| (Dollars      in thousands)     |   | Six      Months Ended  |   |   |                   |   |
|---------------------------------|--------|------------------------|--------|--------|------------------------|--------|
| Intellectual      Property (IP) |   | December      27, 2009 |   |   | December      28, 2008 |   |   | Change |   |
| Revenues                        |   | $                      | 5,157  |   |                   | $      | 22,561 |   |   |   | (77.1 | %) |
| Gross      Margin               |   | $                      | 5,157  |   |                   | $      | 22,561 |   |   |   | (77.1 | %) |
| Gross      Margin %             |   |                   | 100.0  | %      |                   |   | 100.0 | % |   |   | --- | % |

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| (Dollars      in thousands)                       |   | Three      Months Ended |    |   |              |   |
|---------------------------------------------------|--------|-------------------------|---------|--------|-------------------|--------|
| Selling,      General and Administrative          |   | December      27, 2009  |    |   | %      of Revenue |   |   | December      28, 2008 |   |   | %      of Revenue |   |   | Change |   |
| Revenues                                          |   | $                       | 210,244 |   |              |   |   |   | $ | 189,746 |   |   |   |   |   |   | 10.8 | % |
| Selling,      general and administrative expenses |   | $                       | 37,285  |   |              |   | 17.7 | % |   | $ | 61,528 |   |   |   | 32.4 | % |   | (14.7)      ppt |   |
| Proxy      contest and filing costs               |   | $                       | — |   |              |   | — | % |   | $ | 13,340 |   |   |   | 7.0 | % |   | (7.0)      ppt |   |
| Investigation      and Filing Support             |   | $                       | — |   |              |   | — | % |   | $ | 1,020 |   |   |   | 0.5 | % |   | (0.5)      ppt |   |

| (Dollars      in thousands)                       |   | Six      Months Ended  |    |   |              |   |
|---------------------------------------------------|--------|------------------------|---------|--------|-------------------|--------|
| Selling,      General and Administrative          |   | December      27, 2009 |    |   | %      of Revenue |   |   | December      28, 2008 |   |   | %      of Revenue |   |   | Change |   |
| Revenues                                          |   | $                      | 389,615 |   |              |   |   |   | $ | 434,220 |   |   |   |   |   |   | (10.3 | %) |
| Selling,      general and administrative expenses |   | $                      | 80,867  |   |              |   | 20.7 | % |   | $ | 126,405 |   |   |   | 29.1 | % |   | (8.4)      ppt |   |
| Proxy      contest and filing costs               |   | $                      | — |   |              |   | — | % |   | $ | 15,320 |   |   |   | 3.5 | % |   | (3.5)      ppt |   |
| Investigation      and Filing Support             |   | $                      | — |   |              |   | — | % |   | $ | 15,480 |   |   |   | 3.6 | % |   | (3.6)      ppt |   |

| (Dollars      in thousands)         |   | Three      Months Ended |    |   |              |   |
|-------------------------------------|--------|-------------------------|---------|--------|-------------------|--------|
| Research      and Development       |   | December      27, 2009  |    |   | %      of Revenue |   |   | December      28, 2008 |   |   | %      of Revenue |   |   | Change |   |
| Revenues                            |   | $                       | 210,244 |   |              |   |   |   | $ | 189,746 |   |   |   |   |   |   | 10.8 | % |
| Research      and Development costs |   | $                       | 24,215  |   |              |   | 11.5 | % |   | $ | 24,901 |   |   |   | 13.1 | % |   | (1.6)      ppt |   |

| (Dollars      in thousands)         |   | Six      Months Ended  |    |   |              |   |
|-------------------------------------|--------|------------------------|---------|--------|-------------------|--------|
| Research      and Development       |   | December      27, 2009 |    |   | %      of Revenue |   |   | December      28, 2008 |   |   | %      of Revenue |   |   | Change |   |
| Revenues                            |   | $                      | 389,615 |   |              |   |   |   | $ | 434,220 |   |   |   |   |   |   | (10.3 | %) |
| Research      and Development costs |   | $                      | 47,042  |   |              |   | 12.1 | % |   | $ | 49,618 |   |   |   | 11.4 | % |   | 0.7      ppt |   |

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|                                                                               |   | Three      Months Ended |    |   | Six      Months Ended  |   |
|------------------------------------------------------------------------------------|--------|-------------------------|---------|--------|------------------------|--------|
|                                                                               |   | December      27, 2009  |    |   | December      28, 2008 |   |   | December      27, 2009 |   |   | December      28, 2008 |   |
| Reported      in asset impairment, restructuring and other charges                 |   |                    |    |   |                   |   |   |   |   |   |   |   |
|      Asset      impairment charges                        |   | $                       | — |   |                   | $      | 48,885 |   |   | $ | — |   |   | $ | 48,885 |   |
|     Severance      and workforce reduction costs (adjustments) |   |                    | (49     | )      |                   |   | 31 |   |   |   | 42 |   |   |   | 382 |   |
|     Other      Charges                                         |   |                    | 19      |   |                   |   | 60 |   |   |   | 95 |   |   |   | 180 |   |
| Total      asset impairment, restructuring and other charges                       |   | $                       | (30     | )      |                   | $      | 48,976 |   |   | $ | 137 |   |   | $ | 49,447 |   |

|                                                                                                     |   | Newport,      Wales |    |   | El      Segundo |   |    | Research      & Development and PCS Divestiture |   |
|----------------------------------------------------------------------------------------------------------|--------|---------------------|---------|--------|-----------------|--------|---------|-----------------------------------------------------|--------|
| Accrued      severance and workforce reduction costs, June 28, 2009                                      |   | $                   | 359     |   |            | $      | 3,535   |                                                |   | $ | 376 |   |
| Accrued      during the six months and charged to asset impairment, restructuring and      other charges |   |                | — |   |            |   | 177     |                                                |   |   | — |   |
| Accrued      during the six months and charged to operating expenses                                     |   |                | — |   |            |   | 675     |                                                |   |   | 32 |   |
| Costs      paid during the six months                                                                    |   |                | (186    | )      |            |   | (2      | )                                                   |   |   | (216 | ) |
| Foreign      exchange gains                                                                              |   |                | (6      | )      |            |   | — |                                                |   |   | — |   |
| Change      in provision                                                                                 |   |                | — |   |            |   | — |                                                |   |   | (135 | ) |
| Accrued      severance and workforce reduction costs, December 27, 2009                                  |   | $                   | 167     |   |            | $      | 4,385   |                                                |   | $ | 57 |   |

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|                                                                               |   | Three      Months Ended December 27, 2009 |    |
|------------------------------------------------------------------------------------|--------|-------------------------------------------|---------|
|                                                                               |   | Newport,      Wales                       |    |   | El      Segundo (Adjustments) |   |   | Research      & Development Facility |   |   | PCS      Divestiture (Adjustments) |   |   | Total |   |
| Asset      impairment charges                                                      |   | $                                         | — |   |   | $ | — |   |   | $ | — |   |   | $ | — |   |   | $ | — |   |
|     Severance      and workforce reduction costs (adjustments) |   |                                      | — |   |   |   | (25 | ) |   |   | — |   |   |   | (24 | ) |   |   | (49 | ) |
|     Other      charges                                         |   |                                      | — |   |   |   | — |   |   |   | 19 |   |   |   | — |   |   |   | 19 |   |
| Total      asset impairment, restructuring and other charges                       |   | $                                         | — |   |   | $ | (25 | ) |   | $ | 19 |   |   | $ | (24 | ) |   | $ | (30 | ) |

|                                                                 |   | Three      Months Ended December 28, 2008 |    |
|----------------------------------------------------------------------|--------|-------------------------------------------|---------|
|                                                                 |   | Newport,      Wales                       |    |   | El      Segundo |   |   | Research      & Development Facility |   |   | PCS      Divestiture |   |   | Total |   |
| Asset      impairment charges                                        |   | $                                         | 48,885  |   |   | $ | — |   |   | $ | — |   |   | $ | — |   |   | $ | 48,885 |   |
|     Severance      and workforce reduction costs |   |                                      | 1       |   |   |   | — |   |   |   | 30 |   |   |   | — |   |   |   | 31 |   |
|     Other      charges                           |   |                                      | — |   |   |   | — |   |   |   | 60 |   |   |   | — |   |   |   | 60 |   |
| Total      asset impairment, restructuring and other charges         |   | $                                         | 48,886  |   |   | $ | — |   |   | $ | 90 |   |   | $ | — |   |   | $ | 48,976 |   |

|                                                                               |   | Six      Months Ended December 27, 2009 |    |
|------------------------------------------------------------------------------------|--------|-----------------------------------------|---------|
|                                                                               |   | Newport,      Wales                     |    |   | El      Segundo |   |   | Research      & Development Facility |   |   | PCS      Divestiture (Adjustments) |   |   | Total |   |
| Asset      impairment charges                                                      |   | $                                       | — |   |   | $ | — |   |   | $ | — |   |   | $ | — |   |   | $ | — |   |
|     Severance      and workforce reduction costs (adjustments) |   |                                    | — |   |   |   | 177 |   |   |   | — |   |   |   | (135 | ) |   |   | 42 |   |
|     Other      charges                                         |   |                                    | — |   |   |   | — |   |   |   | 95 |   |   |   | — |   |   |   | 95 |   |
| Total      asset impairment, restructuring and other charges                       |   | $                                       | — |   |   | $ | 177 |   |   | $ | 95 |   |   | $ | (135 | ) |   | $ | 137 |   |

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|                                                                 |   | Six      Months Ended December 28, 2008 |    |
|----------------------------------------------------------------------|--------|-----------------------------------------|---------|
|                                                                 |   | Newport,      Wales                     |    |   | El      Segundo |   |   | Research      & Development Facility |   |   | PCS      Divestiture |   |   | Total |   |
| Asset      impairment charges                                        |   | $                                       | 48,885  |   |   | $ | — |   |   | $ | — |   |   | $ | — |   |   | $ | 48,885 |   |
|     Severance      and workforce reduction costs |   |                                    | 1       |   |   |   | — |   |   |   | 381 |   |   |   | — |   |   |   | 382 |   |
|     Other      charges                           |   |                                    | — |   |   |   | — |   |   |   | 180 |   |   |   | — |   |   |   | 180 |   |
| Total      asset impairment, restructuring and other charges         |   | $                                       | 48,886  |   |   | $ | — |   |   | $ | 561 |   |   | $ | — |   |   | $ | 49,447 |   |

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|                                               |   | As      of             |    |
|----------------------------------------------------|--------|------------------------|---------|
|                                               |   | December      27, 2009 |    |   | June      28, 2009 |   |
| Cash      and cash equivalents                     |   | $                      | 209,406 |   |   | $ | 365,761 |   |
| Investments                                        |   |                   | 336,723 |   |   |   | 234,755 |   |
| Total      cash, cash equivalents, and investments |   | $                      | 546,129 |   |   | $ | 600,516 |   |

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|                                                       |   | Six      Months Ended  |     |
|------------------------------------------------------------|--------|------------------------|----------|
|                                                       |   | December      27, 2009 |     |   | December      28, 2008 |   |
| Cash      flows used in operating activities               |   | $                      | (34,702  | ) |   | $ | (4,326 | ) |
| Cash      flows (used in) provided by investing activities |   |                   | (118,578 | ) |   |   | 92,165 |   |
| Cash      flows used in by financing activities            |   |                   | (3,419   | ) |   |   | (4,649 | ) |
| Effect      of exchange rate changes                       |   |                   | 344      |   |   |   | (4,264 | ) |
| Net      (decrease) increase in cash and cash equivalents  |   | $                      | (156,355 | ) |   | $ | 78,926 |   |

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|                                                                                                                                                                                                                                                                                                                                                                           |   | December      27, |   |   | June      28, |   |   |   |   |
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------|-------------------|--------|--------|---------------|--------|--------|--------|--------|
|                                                                                                                                                                                                                                                                                                                                                                           |   | 2009              |   |   | 2009          |   |   | Change |   |
| Current      Assets                                                                                                                                                                                                                                                                                                                                                            |   |              |   |   |          |   |   |   |   |
| Cash      and cash      equivalents                                                              |   | $                 | 209.4  |   |          | $      | 365.8  |   |   | $ | (156.4 | ) |
| Restricted      cash                                                                             |   |              | 3.4    |   |          |   | 3.9    |   |   |   | (0.5 | ) |
| Short-term      investments                                                                      |   |              | 260.7  |   |          |   | 113.2  |   |   |   | 147.5 |   |
| Trade      accounts receivable,      net                                                         |   |              | 127.1  |   |          |   | 97.6   |   |   |   | 29.5 |   |
| Inventories                                                                                      |   |              | 158.0  |   |          |   | 151.1  |   |   |   | 6.9 |   |
| Current      deferred tax      assets                                                            |   |              | 1.3    |   |          |   | 1.2    |   |   |   | 0.1 |   |
| Prepaid      expenses and other receivables                                                                                                                                                                                                                                                                                                                                    |   |              | 59.4   |   |          |   | 28.6   |   |   |   | 30.8 |   |
| Total      current assets                                                                                                                                                                                                                                                                                                                                                      |   | $                 | 819.3  |   |          | $      | 761.4  |   |   | $ | 57.9 |   |
|                                                                                                                                                                                                                                                                                                                                                                           |   |              |   |   |          |   |   |   |   |   |   |   |
| Current      Liabilities                                                                                                                                                                                                                                                                                                                                                       |   |              |   |   |          |   |   |   |   |   |   |   |
| Accounts      payable                                                                            |   | $                 | 82.0   |   |          | $      | 62.6   |   |   | $ | 19.4 |   |
| Accrued      income      taxes                                                                   |   |              | 13.3   |   |          |   | 6.8    |   |   |   | 6.5 |   |
| Accrued      salaries, wages and commissions                                                                                                                                                                                                                                                                                                                                   |   |              | 25.0   |   |          |   | 22.3   |   |   |   | 2.7 |   |
| Current      deferred tax      liabilities                                                       |   |              | 2.8    |   |          |   | 2.8    |   |   |   | — |   |
| Other      accrued      expenses                                                                 |   |              | 68.3   |   |          |   | 114.0  |   |   |   | (45.7 | ) |
| Total      current liabilities                                                                                                                                                                                                                                                                                                                                                 |   |              | 191.4  |   |          |   | 208.5  |   |   |   | (17.1 | ) |
| Net      working capital                                                                                                                                                                                                                                                                                                                                                       |   | $                 | 627.9  |   |          | $      | 552.9  |   |   | $ | 75.0 |   |

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ITEM 3.  QUANTITATIVE ANDQUALITATIVE DISCLOSURES ABOUT MARKET RISK

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ITEM 4

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PART II

ITEM 1

ITEM 1A

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ITEM 2.

| Period                                                |   | Total      Number of Shares Purchased |    |   | Average      Price Paid per Share |   |    | Total      Number of Shares Purchased as Part of Publicly Announced Plans Programs      (1) |   |   | Maximum      Number (or approximate Dollar Value) of Shares that May Yet be Purchased      under the Plans or Programs |   |
|-------------------------------------------------------|--------|---------------------------------------|---------|--------|-----------------------------------|--------|---------|---------------------------------------------------------------------------------------------|--------|--------|------------------------------------------------------------------------------------------------------------------------|--------|
| September      28, 2009 to October 25, 2009           |   |                                  | 0       |   |                              | $      | — |                                                                                        |   |   | —                                                                                                                |   |   | $ | 76,425,267 |   |
| October      26, 2009 to  November 22, 2009 |   |                                  | 94,000  |   |                              | $      | 19.38   |                                                                                        |   |   | 94,000                                                                                                                 |   |   | $ | 74,603,215 |   |
| November      23, 2009 to December 27, 2009           |   |                                  | 166,683 |   |                              | $      | 19.07   |                                                                                        |   |   | 166,683                                                                                                                |   |   | $ | 71,425,286 |   |

| (1)   | On      October 27, 2008, the Company announced that its Board of Directors      had authorized a stock repurchase program of up to $100.0 million.      This plan may be suspended at anytime without prior notice. |
|-----------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

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Table of Contents

ITEM 4

| Description      of Matter |   |   | For                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          |   |   | AuthorityWithheld |   |
|----------------------------|--------|--------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------|--------|-------------------|--------|
|                       | 1.     |   | Election      of Directors                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |   |   |              |   |   |   |
|                       |   |   | Robert      S.      Attiyeh                                                                                                                         |   |   | 51,448,009        |   |   |   | 14,990,847 |   |
|                       |   |   | Oleg      Khaykin                                                                                                                                   |   |   | 61,115,963        |   |   |   | 5,322,893 |   |
|                       |   |   | Dr.      James D.      Plummer                                                                                                                      |   |   | 49,417,711        |   |   |   | 17,021,145 |   |

|   |   |   |                                                                                                                                                                                                                | For    |   |       | Against |   |   | Abstentions |   |
|--------|--------|--------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------|--------|------------|---------|--------|--------|-------------|--------|
|   | 2.     |   | Proposal      to Amend the Company’s Certificate of Incorporation to Eliminate the      Company’s Classified Board Structure over Three Years and Provide for the      Annual Election of All Directors |   |   | 66,044,636 |    |   |   | 357,272     |   |   |   | 36,947 |   |
|   | 3.     |   | Ratification      of the Appointment of Ernst & Young LLP as our Company’s      Independent Registered Public Accounting Firm For Fiscal Year      2010                                         |   |   | 66,274,348 |    |   |   | 121,985     |   |   |   | 42,522 |   |
|   | 4.     |   | Stockholder      Proposal To Adopt a Mandatory Age Limitation for the Election or      Appointment of Directors                                                                                                     |   |   | 3,972,224  |    |   |   | 54,873,176  |   |   |   | 223,633 |   |

(a)  None

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Table of Contents

| Index:                 |                                                                                                                                                                                                                                                                                       |
|-----------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|  3.1    | Certificate      of Incorporation, as amended through July 19, 2006 (incorporated by      reference to Exhibit 3.1 to the Company’s Registration Statement on      Form S-8 filed with the Commission on July 19, 2006;      Registration No. 333-117489)        |
| 3.2                         | Amendment      to Certificate of Incorporation, dated November 13,  2009*                                                                                                                                                                                                                  |
| 3.3                         | Bylaws      as Amended and Restated  (incorporated by reference to      Exhibit 3.1 to the Company’s Current Report on Form 8-K filed      with the Commission on December 3, 2009)                                                                              |
| 10.1              | Form      of Performance Based Restricted Stock Unit Award Agreement for Messrs.      Khaykin and Barrow  (incorporated by reference to      Exhibit 10.1 to the Company’s Current Report on Form 8-K filed      with the Commission on November 13, 2009)+      |
| 10.2                        | Form      of Performance Based Restricted Stock Unit Award Agreement for Messrs.      Daskal and Bixler  (incorporated by reference to      Exhibit 10.2 to the Company’s Current Report on Form 8-K filed      with the Commission on November 13, 2009)+  |
| 10.3                        | Form      of Performance Based Restricted Stock Unit Award Agreement for Alternative      Performance Condition*+                                                                                                                                                                     |
| 10.4                        | Form      of Performance Based Restricted Stock Unit Award Agreement for Double      Performance Condition*+                                                                                                                                                                               |
| 10.5                        | Description      of Cash and Performance Restricted Stock Unit Incentive Programs for      Executive Officers (incorporated by reference to Item 5.2      (e) of the Company’s Current Report on Form 8-K filed with      the Commission on November 13, 2009)+       |
| 10.6                        | Severance      and General Release Letter Agreement, dated December 2, 2009, by and      between the Company and Donald R. Dancer *+                                                                                                                                                       |
| 31.1                        | Certification      Pursuant to Rule 13a-14(a) of the Securities Exchange Act of 1934,      Adopted Pursuant to Section 302 of the Sarbanes-Oxley Act of      2002*                                                                                                               |
| 31.2                        | Certification      Pursuant to Rule 13a-14(a) of the Securities Exchange Act of 1934,      Adopted Pursuant to Section 302 of the Sarbanes-Oxley Act of      2002*                                                                                                               |
| 32.1                        | Certification      Pursuant to 18 U.S.C. 1350, Adopted Pursuant to Section 906 of the      Sarbanes-Oxley Act of 2002*                                                                                                                                                                |
| 32.2                        | Certification      Pursuant to 18 U.S.C. 1350, Adopted Pursuant to Section 906 of the      Sarbanes-Oxley Act of 2002*                                                                                                                                                                |

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|                             | INTERNATIONAL RECTIFIER CORPORATIONRegistrant                                           |
|----------------------------------|---------------------------------------------------------------------------------------------------|
| Date:      February 3, 2010 | /s/      ILAN DASKAL                                                                              |
|                             | Ilan      DaskalChief      Financial Officer(Principal      Financial andAccounting      Officer) |

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