L55S D15

CURRENT SENSORS

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Magnetic Proportion System / Through Type, Ta=105℃ Operating

L55S D15 SERIESRoHSIntroduction【STANDARDS】
・UL508・CSA C22.2 No.14-18
・EN 62477-1

Parameters

Symbol

Unit

Value

Comment

Supply voltage

Vcc

V± 18V

Primary conductor temperature―℃120

Symbol

Unit

Value

Vd―

AC5000V，for 1minute(Sensing current 0.5mA)

Fluxgate system

ABSOLUTE MAXIMUM RATINGS

ISOLATION CHARACTERISTICS

lnsulation voltage

Comment
Primary ⇔ SecondaryPrimary ⇔ Secondary
Input waveform：
・Front time 1.2µs
・Time to half value 50µs・singleVw

kV

12

Insulation resistance

RIS―≧ 1000M Ω (at DC500V)

Primary ⇔ Secondary

Clearance distance

dCI―

14.0mm（MIN)

Primary ⇔ Secondary

Creepage distance

dCp―

14.0mm（MIN)

Primary ⇔ Secondary

Case material――

UL94 V-0

Filler material――

UL94 V-0

Case

CTIV

600 ( group Ⅰ )Filler

CTI

V

600 ( group Ⅰ )Comparative Tracking Index；（CTI）

Closed loop

Impulse withstand voltage

ENVIRONMENTAL AND MECHANICAL CHARACTERISTICS
Parameters

Value

SymbolUnit

Ambient operating temperature ＊ 1TA℃

－ 40＋ 105

Ambient storage temperatureTS℃－ 40＋ 105

Massmg620

Internal magnetic core――Silicon steel

MINTYPMAX＊ 1 Temperature of the connector should not exceed 105℃ because the absolute maximum temperature of the connector is +105℃ .

117

Open loop

Parameters

Comment

L55S D15

CURRENT SENSORSSPECIFICATIONS

Primary norminal current

Symbol

Unit

Value
MIN

IPN

A

2500

Introduction
Fluxgate system

5%

−4500

4500

5%

−4500

4500

−5500

5500

5%

−4500

4500

10%

−5500

5500

L55S1T5D15***
L55S2T0D15***
L55S2T5D15***

10%IPM

A

Supply Voltage

VccVConsumption current

Icc

mA

Rated output voltage

VoV

3.960
−0.0300.000+0.030

VofV−0.020

0.000+0.020−0.0200.000+0.020

Offset voltage ＊ 3

L55S1T5D15***
L55S2T0D15***

CommentMAX

2000

L55S2T5D15***
Primary current, measuring range ＊ 1, 2TYP
1500

L55S1T5D15***
L55S2T0D15***

Open loop

1 2310

Ta=+25℃，RL=10kΩ，Vcc=±15V

Parameters

L55S2T5D15***± 12( ± 5%)± 15( ± 5%)
2030

4.000

4.040

Hysteresis error

VOHmV−1515

Temperature coefficient of Vo

TcVo%/℃−0.05+0.05

Temperature coefficient of Vof

TcVofmV/℃−1+1Linearity error (0A ～ IPN)

εL%

−1+1Output load resistance

RLkΩ

Response time (@90% of IPN）＊ 4

trμsFrequency bandwidth (-3dB) ＊ 5BW

kHz

525

＊5 High fundamental frequency primary current and/or harmonic current may result in excessive heating in magnetic core (Silicon steel).

118

at Ip = 0A,
Icc = 20 + Vout / RL
at IPNat IP = 0A

at 0A → IPN → 0A
Without TcVof
at IP = 0A10＊1 If the product of 1500A or less operate at Vcc = ± 12V power supplies, measuring range is reduced to 2.5 x IPN.
＊2 The value of measured current which indicates an output with a greater than ± 5%(or 10%) deviation from theoretical output value.
＊3 Offset voltage value is after removal of core hysteresis.
＊4 Measurement condition : Primary conductor cross sectional area is as same as through hole, and penetration with 1turn in through hole.

Closed loop

2/4

di/dt=100A/µs
at very low current

L55S D15

CURRENT SENSORS
電 流 セ ン サ 関 連 C U R R E N T SE N S O R S

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L55S D151 2310
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STANDARDS

適用規格 STANDARDSEN62477-1:2012/A12:2021
EN62477-1:2012/A12:2021
Rated voltage
1000V, CAT Ⅲ , PD2, Reinforced isolation, non uniform field
Rated voltage

1000V, CAT Ⅲ, PD2, Reinforced isolation, non uniform field

Introduction

UL508，CSA C22.2
No.14-18（ UL FILE No. E243511 ）UL508， CSA C22.2 No.14-18 （ UL FILE No. E243511 ）Rated voltage Rated
1000V,voltage PD21000V, PD2

Fluxgate system接続図 CONNECTIONCONNECTION

外形図 DIMENSIONS(mm)DIMENSIONS(mm)

L55SxxxD15M/M-A

Closed loop

Open loop

L55SxxxD15M/M-A

・推奨固定ネジ : M5 (平ワッシャー及びスプリングワッシャー)
Recommended fastening screw type : M5 with flat washer and spring washer
・推奨締め付けトルク : < 1.5 N・mRecommended fastening
screw type :fastening
M5 with torqueflat washer
spring washer
Recommended: < 1.5andN・m
NOTE

Recommended fastening torque : < 1.5 N・m

119

L55S D15

CURRENT SENSORS
電 流 セ ン サ 関 連 C U R R E N T SE N S O R SL55S D15

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1 231012310

捺印 MARKING

Introduction

MARKING

Lot No.例 Example of Lot No.
( *6 )

Fluxgate system

L55SxxxD15***
Types
02201
Revision code(1 figure), Date code（4 figures)
00000190
Serial No.(6 figures)
Made in China
Country of production*6 桁数調整用コード*6
Digit number adjustment code
Digit number adjustment code

発注型番とコネクタ端子メッキ Order number and Connector number (terminal plating)Open loop

型番
L55SxxxD15M

Types
標準
6 WDQGDUG

メーカー
Manufacturer

コネクタ Connector
製品番号
旧製品番号
Part Number
Old Part Number22-04-1041

5045-04A

Sn22-11-1041

5045-04AG

Au

Order number and Connector number(terminal plating)
Molex
L55SxxxD15M-A

受注生産品% XLOGWR2 UGHU

端子メッキ
Plating of terminalConnector＊ ”xxx”は定格電流記号 Rated current (3 figures)
Types シリーズの金メッキコネクタの製品は、製品名の末尾に’-A’がつきます。
＊ L55SxxxD15M
Manufacturer
PartNumber
Old Part Number
As for the L55SxxxD15M series of a gold-plated connector, ’-A’ attaches to the end of the product name.
L55SxxxD15M
Standard
22-04-1041
5045-04A
L55SxxxD15M-A

Build to Order

Molex

22-11-1041

Closed loop

＊ As for the L55SxxxD15M series of a gold-plated connector, ’-A’attaches to the end of the product name.

1205045-04AG

Plating of terminalSnAu

Notices

CURRENT SENSORS

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3 1510

Important Notice
7. This product is not designed to resist radiation.

1. The content of this information is subject to change without

vehicle equipment, safety devices, and so on) in which・U se in liquids such as water, oil, chemical solutions, ororganic solvents, and use in locations where the product will
be exposed to such liquids.
・U se that involves exposure to direct sunlight, outdoor
exposure, or dusty conditions.
・Use in locations where corrosive gases such as sea winds,
Cl2, H2S, NH3, SO2, or NO2, are present. (Some productimproves durability)・U se in environments with strong static electricity orelectromagnetic radiation.
・Use that involves placing inflammable material next to theproduct.
・Use of this product either sealed with a resin filling or coatedwith resin.
・Use of water or a water soluble detergent for flux cleaning.
・Use in locations where condensation is liable to occur.

extremely high quality and high reliability is required, or if

8. D o not use or otherwise make available the TAMUTA

the malfunction or failures of product could be cause loss of

products or the technology described in this document for any

human life, bodily injury.

military purposes, including without limitation, for the design,prior notice for the purpose of improvements, etc. Ensure thatyou are in possession of the most up-to-date information whenusing this product.
2. T his product is intended to be used in general electronics
applications (electric home appliances, business equipment,
information equipment, communication terminal equipment,
measuring devices, industrial equipment, and so on). This
product is neither intended nor warranted for use in following
equipment or devices:
Special application (such as for medical devices,transportation equipment, traffic signal control equipment,
fire and crime prevention equipment, aeronautics andspace devices, nuclear power control, fuel control, in-Tamura Corporation shall not be held responsible for any

development, use, stockpiling or manufacturing of mass

damage incurred by customers or any third party when products

destruction weapons (e.g. nuclear, chemical, or biologicalare used in special application, unless specifically permitted inweapons or missile technology products). When exporting

this document.

and re-exporting the products or technology described in thisdocument, you should comply with the applicable export control

3. Tamura Corporation constantly strives to improve quality andlaws and regulations and follow the procedures required byreliability, but malfunction or failures are bound to occur withsuch laws and regulations including, without limitation, Japansome probability in current sensor. To ensure that failures do-Foreign Exchange and Foreign Trade Control Law and U.S.-

not cause accidents resulting in injury or death, fire accidents,

Export Administration Regulations. The TAMURA productssocial damage, and so on, users are to thoroughly verify theand related technology should not be used for or incorporated

safety of their designs in devices and/or systems.

into any products or systems whose manufacture, use, or saleis prohibited under any applicable domestic or foreign laws or4. The operation examples and circuit examples shown in thisregulations.

information are for reference purposes only, and Tamura
Corporation disclaims all responsibility for any violations of

9. Please contact your TAMURA sales office for details as toindustrial property rights, intellectual property rights and any

environmental matters such as the RoHS compatibility ofother rights owned by Tamura Corporation or third parties that

Product. Please use TAMURA products in compliance with allthese may entail.

applicable laws and regulations that regulate the inclusion or5. T he circuit examples and part constants listed in theseuse of controlled substances, including without limitation, thespecifications are provided as reference for the verification

EU RoHS Directive. TAMURA assumes no liability for damagesof characteristics. The user is to perform design, verification,or losses occurring as a result of your noncompliance withand judgment under his or her own responsibility, taking into

applicable laws and regulations.

account the various conditions.

10. T
 AMURA assumes no liability for damages or losses incurred by
you or third parties as a result of unauthorized use of TAMURA

6. T he products are designed for use in environments whereproducts.

consumer electronics are commonly used. It is not designed foruse in special environments such as listed below, and if such

11. T his document and any information herein may not be

use is considered, the user is to perform thorough safety andreproduced in whole or in part without prior written permission

reliability checks under his/her responsibility.

from TAMURA.

9

Appli note

CURRENT SENSORS

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3 1709Application notes<General Considerations><Open loop>

1. T he sensor uses polar electronic components. When the1. High frequency primary current may result in excessive heating

polarity of the power supply is mistaken, the sensor is damaged.

in iron magnetic core and cause damage to internal circuitry;

2. Static electricity or excessive voltage can increase an offset

for high frequency applications select current sensor with ferrite

voltage in the Hall element, and cause offset voltage to change.

core material.
2. If the measured current exceeds the rated current, magnetic

Please exercise care in handling and application.

core saturation will occur and the output voltage signal will not

3. In order to prevent the influence of noise, the use of twisted

be linearly proportional to the measured current.

cable or shielded cable for the output line is recommended
4. If using this device within a magnetic field generated by otherdevices, the specified accuracy may not be obtainable.

<Closed Loop>

5. O ur products（several models are excluded ）are adjusted

1. For closed loop current sensors please insure the power supply

with the trimming method by the measurement condition

voltage is balanced, symmetrical, and, applied simultaneously（Load resistance, Power supply voltage）of specification

to avoid potential increase in DC offset error.

sheets. Therefore, characteristics（Offset, Output, etc.）and its

2. Maximum rated current measurement duration is timedependent.

deviation may be changed in different circuit conditions from

Maximum rated current applied in excess of the time limit can

the measurement condition. All change characteristic items are

result in damage to internal electronic circuitry; please consult

not indicated on specification sheets.

Tamura for assistance.

6. The performance of current sensors with through-hole（aperture）

3. When using a measurement resistor to convert current output

is dependent on the position of the primary conductor. Tamura

to voltage output select a resistor with stable temperature

specifications are based on a primary conductor completely

characteristic to insure accuracy of the output voltage.

filling the through-hole（aperture）area.

4. Compensation current supplied to the secondary winding varies

7. T he current sensor rated current in DC Amps.

in proportion to the measured current based on the conversion

8. Please use mating connector with equivalent terminal plating

ratio.（If/KN; KN ＝ secondary turns）Please insure the PSU

material to insure proper operation and avoid possibility ofhas required current capacity to supply compensation current‘galvanic corrosion’.

to the secondary winding.

9. P lease do not store in high-temperature and high-humidity
storage environment. Please use it after confirming soldering<Flux-Gate>

when it is kept for six months or more.（product soldered with

1. Compensation current supplied to the secondary winding variessubstrate）
10. We recommend performing a zero offset adjustment by measuring

in proportion to the measured current. Please insure the PSU

the offset voltage at startup. In continuously operation for a few

has required current capacity to supply compensation current
to the secondary winding.

months, or at change of ambient temperature or humidity is large,

2. T here is 450kHz ripple voltage present on the output and

we recommend regularly performing a zero offset adjustment at

reference output voltage signals . An external capacitor maybe

being idling（it is clear that the current is not apply）.

added if necessary.

11. The current sensor doesn't have built-in protection circuit(devices and fuses, etc.). As a failure mode of the sensor,
there is a short circuit and open state. In the case of a shortcircuit state, the abnor-mal temperature rise of the internal
parts is assumed, and there is a possibility to smoke and toignite. If it is used in safety critical circuit blocks, please takeappropriate measures by protection devices, protection circuits,etc. For closed loop –type sensors and flux gate (closed looptype) sensors, the consumption current of the secondary powersupply varies in proportion to the measurement current.

7