BC817W series

45 V, 500 mA NPN general-purpose transistors
Rev. 8 — 1 July 2022

Product data sheet

1. General description
NPN general-purpose transistor in a very small SOT323 (SC70) Surface-Mounted Device (SMD)
plastic package.
Table 1. Product overview
Type number
Package
BC817WPNP complement

Nexperia

JEDEC

JEITA

SOT323-SC-70

BC807W

BC817-16W

BC807-16W

BC817-25W

BC807-25W

BC817-40W

BC807-40W

2. Features and benefits••

High current
Three current gain selections

3. Applications•

General-purpose switching and amplification

4. Quick reference data
Table 2. Quick reference data
SymbolParameter

Conditions

Min

Typ

Max

Unit

VCEO

collector-emitter voltage

open base; Tamb = 25 °C

-

-

45

V

IC

collector current

Tamb = 25 °C

-

-

500

mA

ICM

peak collector current

single pulse; tp ≤ 1 ms; Tamb = 25 °C

-

-

1

A

hFE

DC current gain
[1]

100

-

600

BC817-16W

[1]

100

-

250

BC817-25W

[1]

160

-

400

BC817-40W

[1]

250

-

600

BC817W[1]

pulsed; tp ≤ 300 μs; δ ≤ 0.02

VCE = 1 V; IC = 100 mA Tamb = 25 °C

BC817W series

Nexperia

45 V, 500 mA NPN general-purpose transistors

5. Pinning information
Table 3. Pinning
Pin

SymbolDescription

1

B

base

2

E

emitter3

Ccollector

Simplified outline

Graphic symbol

3

C
B
E
sym123

1

2

6. Ordering information
Table 4. Ordering information
Type number
Package
BC817W

Name

Description

Version

SC-70

Plastic surface-mounted package; 3 leads

SOT323BC817-16W
BC817-25W
BC817-40W

7. Marking
Table 5. Marking
Type number

Marking code[1]BC817W

6D%

BC817-16W

6A%

BC817-25W

6B%

BC817-40W

6C%

[1]

% = placeholder for manufacturing site code

BC817W_SER

Product data sheet

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BC817W series

Nexperia

45 V, 500 mA NPN general-purpose transistors

8. Limiting values
Table 6. Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134).
SymbolParameter

Conditions

Min

Max

Unit

VCBO

collector-base voltage

open emitter; Tamb = 25 °C

-

50

V

VCEO

collector-emitter voltage

open base; Tamb = 25 °C

-

45

V

VEBO

emitter-base voltage

open collector; Tamb = 25 °C

-

5

V

IC

collector current

Tamb = 25 °C

-

500

mA

ICM

peak collector current

single pulse; tp ≤ 1 ms; Tamb = 25 °C

-

1

A

IBM

peak base current

single pulse; tp ≤ 1 ms; Tamb = 25 °C

-

200

mA

Ptot

total power dissipation

Tamb ≤ 25 °C

[1]
[2]

-

200

mW

[3]
[2]

-

290

mW

Tj

junction temperature

-

150

°C

Tamb

ambient temperature

-65

150

°C

Tstg

storage temperature

-65

150

°C

[1]
[2]
[3]

Device mounted on an FR4 Printed-Circuit-Board (PCB), single-sided copper, tin-plated and standard footprint.
Valid for all available selection groups.
2
Device mounted on an FR4 PCB, single-sided copper, tin-plated; mounting pad for collector 1 cm .
aaa-028121

400
Ptot
(mW)
(1)

300

(2)

200

100

0
-75

-25

25

75

125
175
Tamb (°C)2(1) FFR4 PCB, single-sided copper; 1 cm
(2) FR4 PCB, single-sided copper; standard footprint
Fig. 1.

Power derating curves

BC817W_SER

Product data sheet

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BC817W series

Nexperia

45 V, 500 mA NPN general-purpose transistors

9. Thermal characteristics
Table 7. Thermal characteristics
SymbolParameter

Conditions

Rth(j-a)in free air

[1]
[2]
[3]

thermal resistance from junction to ambient

Min

Typ

Max

Unit

[1]
[2]

-

-

625

K/W

[3]
[2]

-

-

431

K/W

Device mounted on an FR4 PCB; single-sided copper; tin-plated and standard footprint.
Valid for all available selection groups.
2
Device mounted on an FR4 PCB, single-sided copper, tin-plated; monting pad for collector 1 cm .
aaa-028114

103
duty cycle = 1
Zth(j-a)
(K/W)

0.75
0.33

102

0.50
0.20

0.10
0.05
10

0.02

0.01

0
1
-5
10

10-4

10-3

10-2

10-1

1

10

102

tp (s)

103

FR4 PCB, single-sided, tin-plated and standard footprint
Fig. 2.

Transient thermal impedance from junction to ambient as a function of pulse duration; typical values
aaa-028115

103
duty cycle = 1

Zth(j-a)
(K/W)

0.75

102

0.33

0.50
0.20

0.10
0.05
10

0.02

0.01

0
1
10-5

10-4

10-3

10-2

10-1

1

10

102

tp (s)

103

2

FR4 PCB, single-sided copper, tin-plated; mounting pad for collector 1 cm .
Fig. 3.

Transient thermal impedance from junction to ambient as a function of pulse duration; typical values

BC817W_SER

Product data sheet

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BC817W series

Nexperia

45 V, 500 mA NPN general-purpose transistors

10. Characteristics
Table 8. Characteristics
SymbolParameter

Conditions

Min

Typ

Max

Unit

V(BR)CBO

collector-basebreakdown voltage

IC = 100 µA; IE = 0 A; Tamb = 25 °C

50

-

-

V

V(BR)CEOcollector-emitter
breakdown voltage

IC = 10 mA; IE = 0 A; Tamb = 25 °C

45

-

-

V

V(BR)EBO

emitter-basebreakdown voltage

IE = 100 µA; IC = 0 A; Tamb = 25 °C

5

-

-

V

ICBO

collector-basecut-off current

VCB = 20 V; IE = 0 A; Tamb = 25 °C

-

-

100

nA

VCB = 20 V; IE = 0 A; Tj = 150 °C

-

-

5

μA

IEBO

emitter-basecut-off current

VEB = 5 V; IC = 0 A; Tamb = 25 °C

-

-

100

nA

hFE

DC current gain
BC817W

[1]

100

-

600

BC817-16W

[1]

100

-

250

BC817-25W

[1]

160

-

400

BC817-40W

[1]

250

-

600

VCE = 1 V; IC = 100 mA; Tamb = 25 °ChFE

DC current gain

VCE = 1 V; IC = 500 mA; Tamb = 25 °C

[1]

40

-

-

VCEsatcollector-emittersaturation voltage

IC = 500 mA; IB = 50 mA; Tamb = 25 °C

[1]

-

-

700

mV

VBE

base-emitter voltage

VCE = 1 V; IC = 500 mA; Tamb = 25 °C

[1]
[2]

-

-

1.2

V

fT

transition frequency

VCE = 5 V; IC = 10 mA; f = 100 MHz;
Tamb = 25 °C

100

-

-

MHz

Cc

collector capacitance

VCB = 10 V; IE = ie = 0 A; f = 1 MHz;
Tamb = 25 °C

-

3

-

pF

[1]
[2]

pulsed; tp ≤ 300 μs; δ ≤ 0.02
VBE decreases by about 2 mV/K with increasing temperature.

BC817W_SER

Product data sheet

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BC817W series

Nexperia

45 V, 500 mA NPN general-purpose transistors
006aaa131

400

006aaa134

10

hFE
300

VBEsat
(V)

(1)

200

1

(2)

(1)
(2)
(3)

(3)

100

0
10- 1

1

10

102

I C (mA)

103

10- 1
10- 1

VCE = 1 V
(1) Tamb = 150 °C(2) Tamb = 25 °C(3) Tamb = -55 °C
Fig. 4.

1

102

10

I C (mA)

103

IC/IB = 10
(1) Tamb = -55 °C(2) Tamb = 25 °C(3) Tamb = 150 °C

BC817-16W: DC current gain as a function ofcollector current; typical values

Fig. 5.

006aaa137

1

BC817-16W: Base-emitter saturation voltage asa function of collector current; typical values
006aaa140

1.2
(5)

IC
(A)

VCEsat
(V)

(4)

(3)

(2)

0.8

(1)

(6)
(7)

10- 1

(8)
(9)

0.4

(10)
(1) (2)
(3)

10- 2
10- 1

1

10

102

I C (mA)

0103

IC/IB = 10
(1) Tamb = 150 °C(2) Tamb = 25 °C(3) Tamb = -55 °C
Fig. 6.

Fig. 7.

Product data sheet

1

2

3

4

VCE (V)

5

Tamb = 25 °C(1) IB = 16.0 mA(2) IB = 14.4 mA(3) IB = 12.8 mA(4) IB = 11.2 mA(5) IB = 9.6 mA(6) IB = 8.0 mA(7) IB = 6.4 mA(8) IB = 4.8 mA(9) IB = 3.2 mA(10) IB = 1.6 mABC817-16W: Collector-emitter saturation
voltage as a function of collector current;
typical values

BC817W_SER

0BC817-16W: Collector current as a function ofcollector-emitter voltage; typical values

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BC817W series

Nexperia

45 V, 500 mA NPN general-purpose transistors
006aaa132

600
hFE

(1)

VBEsat
(V)

(2)

1

400

(3)

1

(3)

102

10

I C (mA)

103

10- 1
10- 1

VCE = 1 V
(1) Tamb = 150 °C(2) Tamb = 25 °C(3) Tamb = -55 °C
Fig. 8.

(1)
(2)

200

0
10- 1

006aaa135

10

1

102

10

I C (mA)

103

IC/IB = 10
(1) Tamb = -55 °C(2) Tamb = 25 °C(3) Tamb = 150 °C

BC817-25W: DC current gain as a function ofcollector current; typical values
006aaa138

1

Fig. 9.

BC817-25W: Base-emitter saturation voltage asa function of collector current; typical values
006aaa141

1.2

VCEsat
(V)

(6)

IC
(A)

10- 1

(5)

(4)

(3)

(2)

(1)

0.8
(7)
(8)
(1)

(9)

(2)

10- 2

0.4

(3)

(10)

10- 3
10- 1

1

10

102

I C (mA)

103

0

IC/IB = 10
(1) Tamb = 150 °C(2) Tamb = 25 °C(3) Tamb = -55 °C

0

1

2

3

4

VCE (V)

5

Tamb = 25 °C(1) IB = 13.0 mA(2) IB = 11.7 mA(3) IB = 10.4 mA(4) IB = 9.1 mA(5) IB = 7.8 mA(6) IB = 6.5 mA(7) IB = 5.2 mA(8) IB = 3.9 mA(9) IB = 2.6 mA(10) IB = 1.3 mA

Fig. 10. BC817-25W: Collector-emitter saturation
voltage as a function of collector current;
typical values

Fig. 11. BC817-25W: Collector current as a function ofcollector-emitter voltage; typical values

BC817W_SER

Product data sheet

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BC817W series

Nexperia

45 V, 500 mA NPN general-purpose transistors
006aaa133

800

006aaa136

10

hFE
600

(1)

VBEsat
(V)

400

(2)

1

(1)
(2)

(3)

200

0
10- 1

1

(3)

102

10

I C (mA)

103

10- 1
10- 1

VCE = 1 V
(1) Tamb = 150 °C(2) Tamb = 25 °C(3) Tamb = -55 °C

1

102

10

I C (mA)

103

IC/IB = 10
(1) Tamb = -55 °C(2) Tamb = 25 °C(3) Tamb = 150 °C

Fig. 12. BC817-40W: DC current gain as a function ofcollector current; typical values
006aaa139

1

Fig. 13. BC817-40W: Base-emitter saturation voltage asa function of collector current; typical values
006aaa142

1.2

VCEsat
(V)

(6)

IC
(A)

10- 1

(5)

(4)

(3)

(2)

0.8

(1)

(7)
(8)
(9)

(1)
(2)

10- 2

10- 3
10- 1

0.4

(3)

1

10

102

I C (mA)

103

0

IC/IB = 10
(1) Tamb = 150 °C(2) Tamb = 25 °C(3) Tamb = -55 °C

(10)

0

1

2

3

4

VCE (V)

5

Tamb = 25 °C(1) IB = 12.0 mA(2) IB = 10.8 mA(3) IB = 9.6 mA(4) IB = 8.4 mA(5) IB = 7.2 mA(6) IB = 6.0 mA(7) IB = 4.8 mA(8) IB = 3.6 mA(9) IB = 2.4 mA(10) IB = 1.2 mA

Fig. 14. BC817-40W: Collector-emitter saturation
voltage as a function of collector current;
typical values

Fig. 15. BC817-40W: Collector current as a function ofcollector-emitter voltage; typical values

BC817W_SER

Product data sheet

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BC817W series

Nexperia

45 V, 500 mA NPN general-purpose transistors

11. Package outline
Plastic surface-mounted package; 3 leads

SOT323

D

B

E

A

X

HE

y

v M A

3
Q

A
A1

1

c

2
e1

bp

Lp

w M B

e

detail X

0

1

2 mm

scale

DIMENSIONS (mm are the original dimensions)
UNIT

A

A1
max

bp

c

D

E

e

e1

HE

Lp

Q

v

w

mm

1.1
0.8

0.1

0.4
0.3

0.25
0.10

2.2
1.8

1.35
1.15

1.3

0.65

2.2
2.0

0.45
0.15

0.23
0.13

0.2

0.2

OUTLINE
VERSION

REFERENCES
IEC

JEDEC

SOT323

JEITA
SC-70

EUROPEAN
PROJECTION

ISSUE DATE
04-11-04
06-03-16

Fig. 16. Package outline SOT323 (SC70)

BC817W_SER

Product data sheet

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BC817W series

Nexperia

45 V, 500 mA NPN general-purpose transistors

12. Soldering
2.65
1.85
1.325
solder lands
solder resist

2

2.35

0.6
(3×)

3

solder paste

1.3

occupied area

0.5
(3×)

1

Dimensions in mm
0.55
(3×)

sot323_fr

Fig. 17. Reflow soldering footprint for SOT323 (SC70)
4.6
2.575
1.425
(3×)
solder lands
solder resist
occupied area
1.8

3.65 2.1
09(2×)

Dimensions in mm
preferred transport
direction during soldering

sot323_fw

Fig. 18. Wave soldering footprint for SOT323 (SC70)

BC817W_SER

Product data sheet

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BC817W series

Nexperia

45 V, 500 mA NPN general-purpose transistors

13. Revision history
Table 9. Revision history
Data sheet ID

Release date

Data sheet status

Change notice

Supersedes

BC817W_SER v.8

20220701

Product data sheet-

BC817W_SER v.7

Modifications:•

BC817W_SER v.7

20180615

Product data sheet-

BC817_BC817W_BC327 v.6

BC817_BC817W_BC337 v.6 20091117

Product data sheet-

BC817_BC817W_BC337 v.5

BC817_BC817W_BC337 v.5 20050221

Product data sheet-

BC817 v.4
BC817W v.4
BC337 v.3

BC817 v.4

20040116

Product Specification -BC817 v.3

BC817W_SER v.4

19990518

Product Specification -BC817W_SER v.3

BC337 v.3

19990415

Product Specification -BC337_338_CNV v.2

BC817W_SER

Product data sheet

Product changed to non-automotive qualification. Please refer to nexperia.com for
automotive (-Q) product alternative(s).

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BC817W series

Nexperia

45 V, 500 mA NPN general-purpose transistors

14. Legal information

injury, death or severe property or environmental damage. Nexperia and its
suppliers accept no liability for inclusion and/or use of Nexperia products insuch equipment or applications and therefore such inclusion and/or use is at
the customer’s own risk.

Data sheet status

Quick reference data — The Quick reference data is an extract of the
product data given in the Limiting values and Characteristics sections of thisdocument, and as such is not complete, exhaustive or legally binding.

Document status[1][2]

Product
status [3]Definition

Objective [short]data sheet

Development

This document contains data fromthe objective specification for
product development.

Preliminary [short]data sheet

Qualification

This document contains data fromthe preliminary specification.

Product [short]data sheet

Production

This document contains the productspecification.

[1]
[2]
[3]

Please consult the most recently issued document before initiating orcompleting a design.
The term 'short data sheet' is explained in section "Definitions".
The product status of device(s) described in this document may havechanged since this document was published and may differ in case ofmultiple devices. The latest product status information is available on
the internet at https://www.nexperia.com.

Definitions
Draft — The document is a draft version only. The content is still underinternal review and subject to formal approval, which may result in
modifications or additions. Nexperia does not give any representations or
warranties as to the accuracy or completeness of information included hereinand shall have no liability for the consequences of use of such information.
Short data sheet — A short data sheet is an extract from a full data sheetwith the same product type number(s) and title. A short data sheet isintended for quick reference only and should not be relied upon to containdetailed and full information. For detailed and full information see the relevant
full data sheet, which is available on request via the local Nexperia sales
office. In case of any inconsistency or conflict with the short data sheet, thefull data sheet shall prevail.
Product specification — The information and data provided in a Productdata sheet shall define the specification of the product as agreed between
Nexperia and its customer, unless Nexperia and customer have explicitly
agreed otherwise in writing. In no event however, shall an agreement bevalid in which the Nexperia product is deemed to offer functions and qualities
beyond those described in the Product data sheet.

Disclaimers
Limited warranty and liability — Information in this document is believed
to be accurate and reliable. However, Nexperia does not give any
representations or warranties, expressed or implied, as to the accuracy
or completeness of such information and shall have no liability for theconsequences of use of such information. Nexperia takes no responsibility
for the content in this document if provided by an information source outsideof Nexperia.
In no event shall Nexperia be liable for any indirect, incidental, punitive,
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profits, lost savings, business interruption, costs related to the removalor replacement of any products or rework charges) whether or not suchdamages are based on tort (including negligence), warranty, breach ofcontract or any other legal theory.
Notwithstanding any damages that customer might incur for any reason
whatsoever, Nexperia’s aggregate and cumulative liability towards customer
for the products described herein shall be limited in accordance with theTerms and conditions of commercial sale of Nexperia.
Right to make changes — Nexperia reserves the right to make changes
to information published in this document, including without limitation
specifications and product descriptions, at any time and without notice. This
document supersedes and replaces all information supplied prior to the
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warranted to be suitable for use in life support, life-critical or safety-criticalsystems or equipment, nor in applications where failure or malfunctionof an Nexperia product can reasonably be expected to result in personal

BC817W_SER

Product data sheet

Applications — Applications that are described herein for any of theseproducts are for illustrative purposes only. Nexperia makes no representation
or warranty that such applications will be suitable for the specified use
without further testing or modification.
Customers are responsible for the design and operation of their applications
and products using Nexperia products, and Nexperia accepts no liability forany assistance with applications or customer product design. It is customer’ssole responsibility to determine whether the Nexperia product is suitableand fit for the customer’s applications and products planned, as well as
for the planned application and use of customer’s third party customer(s).
Customers should provide appropriate design and operating safeguards tominimize the risks associated with their applications and products.
Nexperia does not accept any liability related to any default, damage, costs
or problem which is based on any weakness or default in the customer’s
applications or products, or the application or use by customer’s third party
customer(s). Customer is responsible for doing all necessary testing for thecustomer’s applications and products using Nexperia products in order toavoid a default of the applications and the products or of the application or
use by customer’s third party customer(s). Nexperia does not accept any
liability in this respect.
Limiting values — Stress above one or more limiting values (as defined in
the Absolute Maximum Ratings System of IEC 60134) will cause permanent
damage to the device. Limiting values are stress ratings only and (proper)
operation of the device at these or any other conditions above thosegiven in the Recommended operating conditions section (if present) or theCharacteristics sections of this document is not warranted. Constant or
repeated exposure to limiting values will permanently and irreversibly affect
the quality and reliability of the device.
Terms and conditions of commercial sale — Nexperia products are
sold subject to the general terms and conditions of commercial sale, as
published at http://www.nexperia.com/profile/terms, unless otherwise agreed
in a valid written individual agreement. In case an individual agreement isconcluded only the terms and conditions of the respective agreement shallapply. Nexperia hereby expressly objects to applying the customer’s generalterms and conditions with regard to the purchase of Nexperia products bycustomer.
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states that this specific Nexperia product is automotive qualified, theproduct is not suitable for automotive use. It is neither qualified nor tested inaccordance with automotive testing or application requirements. Nexperia
accepts no liability for inclusion and/or use of non-automotive qualified
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In the event that customer uses the product for design-in and use inautomotive applications to automotive specifications and standards,
customer (a) shall use the product without Nexperia’s warranty of the
product for such automotive applications, use and specifications, and (b)whenever customer uses the product for automotive applications beyond
Nexperia’s specifications such use shall be solely at customer’s own risk,and (c) customer fully indemnifies Nexperia for any liability, damages or failed
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between the translated and English versions.

Trademarks
Notice: All referenced brands, product names, service names andtrademarks are the property of their respective owners.

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BC817W series

Nexperia

45 V, 500 mA NPN general-purpose transistors

Contents
1. General description...................................................... 1
2. Features and benefits.................................................. 1
3. Applications.................................................................. 1
4. Quick reference data....................................................1
5. Pinning information......................................................2
6. Ordering information....................................................2
7. Marking.......................................................................... 2
8. Limiting values............................................................. 3
9. Thermal characteristics............................................... 4
10. Characteristics............................................................ 5
11. Package outline.......................................................... 9
12. Soldering................................................................... 10
13. Revision history........................................................11
14. Legal information......................................................12© Nexperia B.V. 2022. All rights reserved

For more information, please visit: http://www.nexperia.com
For sales office addresses, please send an email to: salesaddresses@nexperia.com
Date of release: 1 July 2022

BC817W_SER

Product data sheet

All information provided in this document is subject to legal disclaimers.

Rev. 8 — 1 July 2022

© Nexperia B.V. 2022. All rights reserved

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