PE-67100NL

CURRENT TRANSFORMER, 100:1, 37A, THT

⚠️ Reference pricing provided. In case of supply shortages, we will connect you with our trusted procurement partners to ensure your project's continuity.

Manufacturer: PULSE ELECTRONICS
Product type: Current Sensing Transformers
Turns Ratio:1:100; Inductance:20mH; Primary Current:37A; ET Constant:-; Frequency Range:10kHz to 200kHz; DC Resistance Secondary:1.4ohm; DC Resistance Primary:-; 64AC9354
SVHC: No SVHC (04-Feb-2026)
Product Range: CSRC

Delivery and price
Units per pack	2500
Price	2.99 €
Current stock	10+
Lead time	30 days

Datasheet

## Through Hole Current Sense Transformers 

_VDE Approved_ 

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**----- Start of picture text -----**<br>
REG.-Nr. D237<br>°<br>**----- End of picture text -----**<br>


_Meet IEC62368-1 insulation requirements 4250VRMS primary to secondary breakdown voltage Frequency range 10kHz to 200kHz_ 

|Electrical Specifications @ 25°C - Operating Temperature -40°C to +130°C<br>**Part**<br>**Number**<br>**IPK**<br>(Amps)<br>**RT**<br>(Ω)<br>**Droop**<br>(%)<br>**KVI**<br>(Volt/Amp)<br>**LS**<br>(mH MIN)<br>**DCR**<br>**RS**<br>(ΩMAX)<br>**Turns**<br>(NS ±1%)<br>**KB**<br>**KCL**<br>**REQ**<br>(mΩ)|Electrical Specifications @ 25°C - Operating Temperature -40°C to +130°C<br>**Part**<br>**Number**<br>**IPK**<br>(Amps)<br>**RT**<br>(Ω)<br>**Droop**<br>(%)<br>**KVI**<br>(Volt/Amp)<br>**LS**<br>(mH MIN)<br>**DCR**<br>**RS**<br>(ΩMAX)<br>**Turns**<br>(NS ±1%)<br>**KB**<br>**KCL**<br>**REQ**<br>(mΩ)|Electrical Specifications @ 25°C - Operating Temperature -40°C to +130°C<br>**Part**<br>**Number**<br>**IPK**<br>(Amps)<br>**RT**<br>(Ω)<br>**Droop**<br>(%)<br>**KVI**<br>(Volt/Amp)<br>**LS**<br>(mH MIN)<br>**DCR**<br>**RS**<br>(ΩMAX)<br>**Turns**<br>(NS ±1%)<br>**KB**<br>**KCL**<br>**REQ**<br>(mΩ)|Electrical Specifications @ 25°C - Operating Temperature -40°C to +130°C<br>**Part**<br>**Number**<br>**IPK**<br>(Amps)<br>**RT**<br>(Ω)<br>**Droop**<br>(%)<br>**KVI**<br>(Volt/Amp)<br>**LS**<br>(mH MIN)<br>**DCR**<br>**RS**<br>(ΩMAX)<br>**Turns**<br>(NS ±1%)<br>**KB**<br>**KCL**<br>**REQ**<br>(mΩ)|Electrical Specifications @ 25°C - Operating Temperature -40°C to +130°C<br>**Part**<br>**Number**<br>**IPK**<br>(Amps)<br>**RT**<br>(Ω)<br>**Droop**<br>(%)<br>**KVI**<br>(Volt/Amp)<br>**LS**<br>(mH MIN)<br>**DCR**<br>**RS**<br>(ΩMAX)<br>**Turns**<br>(NS ±1%)<br>**KB**<br>**KCL**<br>**REQ**<br>(mΩ)|Electrical Specifications @ 25°C - Operating Temperature -40°C to +130°C<br>**Part**<br>**Number**<br>**IPK**<br>(Amps)<br>**RT**<br>(Ω)<br>**Droop**<br>(%)<br>**KVI**<br>(Volt/Amp)<br>**LS**<br>(mH MIN)<br>**DCR**<br>**RS**<br>(ΩMAX)<br>**Turns**<br>(NS ±1%)<br>**KB**<br>**KCL**<br>**REQ**<br>(mΩ)|Electrical Specifications @ 25°C - Operating Temperature -40°C to +130°C<br>**Part**<br>**Number**<br>**IPK**<br>(Amps)<br>**RT**<br>(Ω)<br>**Droop**<br>(%)<br>**KVI**<br>(Volt/Amp)<br>**LS**<br>(mH MIN)<br>**DCR**<br>**RS**<br>(ΩMAX)<br>**Turns**<br>(NS ±1%)<br>**KB**<br>**KCL**<br>**REQ**<br>(mΩ)|Electrical Specifications @ 25°C - Operating Temperature -40°C to +130°C<br>**Part**<br>**Number**<br>**IPK**<br>(Amps)<br>**RT**<br>(Ω)<br>**Droop**<br>(%)<br>**KVI**<br>(Volt/Amp)<br>**LS**<br>(mH MIN)<br>**DCR**<br>**RS**<br>(ΩMAX)<br>**Turns**<br>(NS ±1%)<br>**KB**<br>**KCL**<br>**REQ**<br>(mΩ)|Electrical Specifications @ 25°C - Operating Temperature -40°C to +130°C<br>**Part**<br>**Number**<br>**IPK**<br>(Amps)<br>**RT**<br>(Ω)<br>**Droop**<br>(%)<br>**KVI**<br>(Volt/Amp)<br>**LS**<br>(mH MIN)<br>**DCR**<br>**RS**<br>(ΩMAX)<br>**Turns**<br>(NS ±1%)<br>**KB**<br>**KCL**<br>**REQ**<br>(mΩ)|Electrical Specifications @ 25°C - Operating Temperature -40°C to +130°C<br>**Part**<br>**Number**<br>**IPK**<br>(Amps)<br>**RT**<br>(Ω)<br>**Droop**<br>(%)<br>**KVI**<br>(Volt/Amp)<br>**LS**<br>(mH MIN)<br>**DCR**<br>**RS**<br>(ΩMAX)<br>**Turns**<br>(NS ±1%)<br>**KB**<br>**KCL**<br>**REQ**<br>(mΩ)|Electrical Specifications @ 25°C - Operating Temperature -40°C to +130°C<br>**Part**<br>**Number**<br>**IPK**<br>(Amps)<br>**RT**<br>(Ω)<br>**Droop**<br>(%)<br>**KVI**<br>(Volt/Amp)<br>**LS**<br>(mH MIN)<br>**DCR**<br>**RS**<br>(ΩMAX)<br>**Turns**<br>(NS ±1%)<br>**KB**<br>**KCL**<br>**REQ**<br>(mΩ)|
|---|---|---|---|---|---|---|---|---|---|---|
|**PE-67050NL**|35|15|2.4|0.30|5.0|0.70|50|.269 x 10<br>6|51.2 x 10<br>-6|.95|
|**PE-67100NL**|37|56|2.2|0.56|20|1.40|100|.0671 x 10<br>6|1.56 x 10<br>-6|.85|
|**PE-67200NL**|38|200|2.0|1.00|80|4.50|200|.0168 x 10<br>6|47.3 x 10<br>-9|.82|
|**PE-67300NL**|37|510|2.2|1.70|180|11.0|300|.00746 x 10<br>6|6.13 x 10<br>-9|.84|



## **Notes:** 

1. These current sense transformers have a 1 turn primary winding, secondary turns (Ns) as indicated in the table. 

2. The reference values are for unipolar operation, 50kHz, 40% duty factor, and an estimated 55°C temperature rise. 

3. The maximum useable peak sense current (IPK) depends on the temperature rise or core saturation, which should be evaluated for the operating conditions. 

4. These Current Sense Transformers are recommended for switch mode power supply applications, unipolar or bipolar, operating at frequencies from 10kHz to 200kHz. 

   6. The core loss factor (KCL) is valid from 10kHz to 200kHz at 105°C. 

   7. The terminating resistor (RT) may be varied to adjust operating flux (BOP), droop, or scale factor (KVI). 

   8. The scale factor (KVI) is proportional to the terminating resistor (RT) and is equal to 

   - 1 volt/amp when RT=NS. 

   9. The secondary inductance (LS) is measured at 15kHz and .5V for PE-67050, 1V for PE-67100, 2V for PE-67200 and 3V for PE-67300. 

5. The maximum recommended operating flux density (BOP) is 2000 gauss to 

- prevent saturation at an operating temperature of 105°C. 

## **Mechanical** 

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PE-XXXXXNL<br>0 4<br>2565.7 4 19,05 MAX—> 37 0 MIN><br>35MA<br>**----- End of picture text -----**<br>


## **Schematic** 

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3<br>1 TURN 12 Oe0 5 NS TURNS<br>—O 4<br>Parts per package  ............................80<br>Inches<br>Dimension: —_<br>mm<br>.010<br>Unless otherwise specified, all tolerances are ± — 0,25<br>**----- End of picture text -----**<br>


P577.D (09/19) http://www.power.pulseelectronics.com/contact 

power.pulseelectronics.com 

1 

## Transformers for Digital Audio Data Transmission 

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_For Use with Cirrus Logic’s CS8401,CS8402, CS8403 & CS8404 ICs_ 

## Application 

These transformers have been designed for use at the interface between line driver and receiver and the interconnecting medium in Digital Audio Data Transmission Systems according to AES 3-199X or IEC 958. In such systems, two channels of periodically sampled and uniformly quantized audio signals are transmit on a single shielded twisted pair. 

These transformers are recommended for use with the Cirrus Logic CS8401, CS8402, CS8403 and CS8404 “Digital Audio Interface Transmit Device. The schematic below represents an implementation of transmit and receive circuits using isolation transformers at both ends. Equalization in the receiver may permit to increase the length of the interconnecting cable. 

The electrical parameters of the interface are based on those of CCITT V.II or balanced voltage digital circuits which allow signal transmission up to a few hundred meters. The isolation transformers are essential in improving the balance of the transmitter and the receiver circuitry, and reducing common mode noise and EMI. 

## **Applicable Documents** 

AES 3-1985 (ANSI S4.40-1985), AES 3-199XDraft, IEC 958, CP-340, EBU 3250 

## Application Chart 

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|For More Information|For More Information|||||
|---|---|---|---|---|---|
|**Pulse Worldwide**|**Pulse Europe**|**Pulse China Headquarters**|**Pulse North China**|**Pulse South Asia**|**Pulse North Asia**|
|**Headquarters**|Pulse Electronics GmbH|Pulse Electronics (ShenZhen) CO., LTD|Room 2704/2705|3 Fraser Street|1F, No.111|
|15255 Innovation Drive Ste 100|Am Rottland 12|D708, Shenzhen Academy of|Super Ocean Finance Ctr.|0428 DUO Tower|Xiyuan Road|
|San Diego, CA 92128|58540 Meinerzhagen|Aerospace Technology,|2067 Yan An Road West|Singapore 189352|Zhongli District|
|U.S.A.|Germany|The 10th Keji South Road,|Shanghai 200336||Taoyuan City 32057|
|||Nanshan District, Shenzhen, P.R.|China||Taiwan (R.O.C)|
|||China   518057||||
|Tel: 858 674 8100|Tel: 49 2354 777 100|Tel: 86 755 33966678|Tel: 86 21 62787060|Tel: 65 6287 8998|Tel: 886 3 4356768|
|Fax: 858 674 8262|Fax: 49 2354 777 168|Fax: 86 755 33966700|Fax: 86 2162786973|Fax: 65 6280 0080|Fax: 886 3 4356820|



Performance warranty of products offered on this data sheet is limited to the parameters specified. Data is subject to change without notice. Other brand and product names mentioned herein may be trademarks or registered trademarks of their respective owners. © Copyright, 2019. Pulse Electronics, Inc. All rights reserved. 

P577.D (09/19) 

http://www.power.pulseelectronics.com/contact 

power.pulseelectronics.com 

2

Updated at June 4, 2026

Pulse Electronics, a YAGEO company, is a global leader in the design and manufacturing of passive electronic components. With a legacy of innovation dating back to 1956, the company provides essential technology for the communications, computing, industrial, transportation, and IoT sectors. Pulse is recognized worldwide for delivering high-performance solutions that power advanced applications, ranging from 5G networks and electric vehicles to data centers and smart grids. The company's extensive product portfolio is heavily anchored in power and networking magnetics. This includes a comprehensive range of power inductors engineered for exceptional efficiency and reliability in demanding environments. To address complex electromagnetic compatibility challenges, Pulse also manufactures highly effective EMC and RFI suppression solutions, such as common mode chokes and filters, alongside specialized toroidal and RF inductors designed to ensure clean power delivery and optimal signal integrity. Beyond traditional magnetics, Pulse excels in the development of advanced wireless and power conversion components. Their connectivity solutions feature a wide array of high-performance RF antennas and single-band chip antennas tailored for modern connected devices. Furthermore, to support sophisticated power architectures, Pulse provides a broad spectrum of transformers—encompassing PCB-mounted designs, current sensing transformers, and precise pulse transformers—equipping engineers with robust, industry-proven components for power isolation and measurement.

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