PE-51688NL

Current Sensing Transformer, 1:200, 80 mH, 20 A, 20kHz to 200kHz

⚠️ 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
SVHC: No SVHC (04-Feb-2026)
Inductance: 80mH
ET Constant: -
Turns Ratio: 1:200
Product Range: CSRC
Frequency Range: 20kHz to 200kHz
Primary Current: 20A
Transformer Mounting: Through Hole
DC Resistance Primary: -
Transformer Terminals: PC Pin
DC Resistance Secondary: -

Delivery and price
Units per pack	180
Price	1.54 €
Current stock	500+
Lead time	30 days

Datasheet

## THT Current Sense Transformers & Inductors REG.-Nr. 1457 @ 

## _VDE Approved_ 

_Designed for switching power supply applications Transformer meets EN62368-1 insulation requirements Frequency range from 20kHz to 200kHz_ 

|Electrical Specifications @ 25°C - Operating Temperature -40°C to +125°C<br>**Part Number**<br>**Transformer**<br>**with 2-1 T**<br>**Primaries**<br>**Schem.**<br>**Figure**<br>**Part Number**<br>**Transformer**<br>**with 1T**<br>**Primary**<br>**Schem.**<br>**Figure**<br>**Part Number**<br>**Inductor**<br>**without**<br>**Primary**<br>**Schem.**<br>**Figure**<br>**Turns**<br>**Ns**<br>**Secondary**<br>**Inductance**<br>**MH**<br>(MIN)<br>**Secondary**<br>**Inductance**<br>**Test Voltage**<br>(15.75 KHz)<br>**RS**<br>(ΩMAX)<br>**RT**<br>(ΩMAX)<br>**Primary**<br>**Unipolar**<br>**Amp**µ**Sec.**<br>**Rating**(MAX)<br>**Primary**<br>**Bipolar**<br>**Amp**µ**Sec.**<br>**Rating**(MAX)|Electrical Specifications @ 25°C - Operating Temperature -40°C to +125°C<br>**Part Number**<br>**Transformer**<br>**with 2-1 T**<br>**Primaries**<br>**Schem.**<br>**Figure**<br>**Part Number**<br>**Transformer**<br>**with 1T**<br>**Primary**<br>**Schem.**<br>**Figure**<br>**Part Number**<br>**Inductor**<br>**without**<br>**Primary**<br>**Schem.**<br>**Figure**<br>**Turns**<br>**Ns**<br>**Secondary**<br>**Inductance**<br>**MH**<br>(MIN)<br>**Secondary**<br>**Inductance**<br>**Test Voltage**<br>(15.75 KHz)<br>**RS**<br>(ΩMAX)<br>**RT**<br>(ΩMAX)<br>**Primary**<br>**Unipolar**<br>**Amp**µ**Sec.**<br>**Rating**(MAX)<br>**Primary**<br>**Bipolar**<br>**Amp**µ**Sec.**<br>**Rating**(MAX)|Electrical Specifications @ 25°C - Operating Temperature -40°C to +125°C<br>**Part Number**<br>**Transformer**<br>**with 2-1 T**<br>**Primaries**<br>**Schem.**<br>**Figure**<br>**Part Number**<br>**Transformer**<br>**with 1T**<br>**Primary**<br>**Schem.**<br>**Figure**<br>**Part Number**<br>**Inductor**<br>**without**<br>**Primary**<br>**Schem.**<br>**Figure**<br>**Turns**<br>**Ns**<br>**Secondary**<br>**Inductance**<br>**MH**<br>(MIN)<br>**Secondary**<br>**Inductance**<br>**Test Voltage**<br>(15.75 KHz)<br>**RS**<br>(ΩMAX)<br>**RT**<br>(ΩMAX)<br>**Primary**<br>**Unipolar**<br>**Amp**µ**Sec.**<br>**Rating**(MAX)<br>**Primary**<br>**Bipolar**<br>**Amp**µ**Sec.**<br>**Rating**(MAX)|Electrical Specifications @ 25°C - Operating Temperature -40°C to +125°C<br>**Part Number**<br>**Transformer**<br>**with 2-1 T**<br>**Primaries**<br>**Schem.**<br>**Figure**<br>**Part Number**<br>**Transformer**<br>**with 1T**<br>**Primary**<br>**Schem.**<br>**Figure**<br>**Part Number**<br>**Inductor**<br>**without**<br>**Primary**<br>**Schem.**<br>**Figure**<br>**Turns**<br>**Ns**<br>**Secondary**<br>**Inductance**<br>**MH**<br>(MIN)<br>**Secondary**<br>**Inductance**<br>**Test Voltage**<br>(15.75 KHz)<br>**RS**<br>(ΩMAX)<br>**RT**<br>(ΩMAX)<br>**Primary**<br>**Unipolar**<br>**Amp**µ**Sec.**<br>**Rating**(MAX)<br>**Primary**<br>**Bipolar**<br>**Amp**µ**Sec.**<br>**Rating**(MAX)|Electrical Specifications @ 25°C - Operating Temperature -40°C to +125°C<br>**Part Number**<br>**Transformer**<br>**with 2-1 T**<br>**Primaries**<br>**Schem.**<br>**Figure**<br>**Part Number**<br>**Transformer**<br>**with 1T**<br>**Primary**<br>**Schem.**<br>**Figure**<br>**Part Number**<br>**Inductor**<br>**without**<br>**Primary**<br>**Schem.**<br>**Figure**<br>**Turns**<br>**Ns**<br>**Secondary**<br>**Inductance**<br>**MH**<br>(MIN)<br>**Secondary**<br>**Inductance**<br>**Test Voltage**<br>(15.75 KHz)<br>**RS**<br>(ΩMAX)<br>**RT**<br>(ΩMAX)<br>**Primary**<br>**Unipolar**<br>**Amp**µ**Sec.**<br>**Rating**(MAX)<br>**Primary**<br>**Bipolar**<br>**Amp**µ**Sec.**<br>**Rating**(MAX)|Electrical Specifications @ 25°C - Operating Temperature -40°C to +125°C<br>**Part Number**<br>**Transformer**<br>**with 2-1 T**<br>**Primaries**<br>**Schem.**<br>**Figure**<br>**Part Number**<br>**Transformer**<br>**with 1T**<br>**Primary**<br>**Schem.**<br>**Figure**<br>**Part Number**<br>**Inductor**<br>**without**<br>**Primary**<br>**Schem.**<br>**Figure**<br>**Turns**<br>**Ns**<br>**Secondary**<br>**Inductance**<br>**MH**<br>(MIN)<br>**Secondary**<br>**Inductance**<br>**Test Voltage**<br>(15.75 KHz)<br>**RS**<br>(ΩMAX)<br>**RT**<br>(ΩMAX)<br>**Primary**<br>**Unipolar**<br>**Amp**µ**Sec.**<br>**Rating**(MAX)<br>**Primary**<br>**Bipolar**<br>**Amp**µ**Sec.**<br>**Rating**(MAX)|Electrical Specifications @ 25°C - Operating Temperature -40°C to +125°C<br>**Part Number**<br>**Transformer**<br>**with 2-1 T**<br>**Primaries**<br>**Schem.**<br>**Figure**<br>**Part Number**<br>**Transformer**<br>**with 1T**<br>**Primary**<br>**Schem.**<br>**Figure**<br>**Part Number**<br>**Inductor**<br>**without**<br>**Primary**<br>**Schem.**<br>**Figure**<br>**Turns**<br>**Ns**<br>**Secondary**<br>**Inductance**<br>**MH**<br>(MIN)<br>**Secondary**<br>**Inductance**<br>**Test Voltage**<br>(15.75 KHz)<br>**RS**<br>(ΩMAX)<br>**RT**<br>(ΩMAX)<br>**Primary**<br>**Unipolar**<br>**Amp**µ**Sec.**<br>**Rating**(MAX)<br>**Primary**<br>**Bipolar**<br>**Amp**µ**Sec.**<br>**Rating**(MAX)|Electrical Specifications @ 25°C - Operating Temperature -40°C to +125°C<br>**Part Number**<br>**Transformer**<br>**with 2-1 T**<br>**Primaries**<br>**Schem.**<br>**Figure**<br>**Part Number**<br>**Transformer**<br>**with 1T**<br>**Primary**<br>**Schem.**<br>**Figure**<br>**Part Number**<br>**Inductor**<br>**without**<br>**Primary**<br>**Schem.**<br>**Figure**<br>**Turns**<br>**Ns**<br>**Secondary**<br>**Inductance**<br>**MH**<br>(MIN)<br>**Secondary**<br>**Inductance**<br>**Test Voltage**<br>(15.75 KHz)<br>**RS**<br>(ΩMAX)<br>**RT**<br>(ΩMAX)<br>**Primary**<br>**Unipolar**<br>**Amp**µ**Sec.**<br>**Rating**(MAX)<br>**Primary**<br>**Bipolar**<br>**Amp**µ**Sec.**<br>**Rating**(MAX)|Electrical Specifications @ 25°C - Operating Temperature -40°C to +125°C<br>**Part Number**<br>**Transformer**<br>**with 2-1 T**<br>**Primaries**<br>**Schem.**<br>**Figure**<br>**Part Number**<br>**Transformer**<br>**with 1T**<br>**Primary**<br>**Schem.**<br>**Figure**<br>**Part Number**<br>**Inductor**<br>**without**<br>**Primary**<br>**Schem.**<br>**Figure**<br>**Turns**<br>**Ns**<br>**Secondary**<br>**Inductance**<br>**MH**<br>(MIN)<br>**Secondary**<br>**Inductance**<br>**Test Voltage**<br>(15.75 KHz)<br>**RS**<br>(ΩMAX)<br>**RT**<br>(ΩMAX)<br>**Primary**<br>**Unipolar**<br>**Amp**µ**Sec.**<br>**Rating**(MAX)<br>**Primary**<br>**Bipolar**<br>**Amp**µ**Sec.**<br>**Rating**(MAX)|Electrical Specifications @ 25°C - Operating Temperature -40°C to +125°C<br>**Part Number**<br>**Transformer**<br>**with 2-1 T**<br>**Primaries**<br>**Schem.**<br>**Figure**<br>**Part Number**<br>**Transformer**<br>**with 1T**<br>**Primary**<br>**Schem.**<br>**Figure**<br>**Part Number**<br>**Inductor**<br>**without**<br>**Primary**<br>**Schem.**<br>**Figure**<br>**Turns**<br>**Ns**<br>**Secondary**<br>**Inductance**<br>**MH**<br>(MIN)<br>**Secondary**<br>**Inductance**<br>**Test Voltage**<br>(15.75 KHz)<br>**RS**<br>(ΩMAX)<br>**RT**<br>(ΩMAX)<br>**Primary**<br>**Unipolar**<br>**Amp**µ**Sec.**<br>**Rating**(MAX)<br>**Primary**<br>**Bipolar**<br>**Amp**µ**Sec.**<br>**Rating**(MAX)|Electrical Specifications @ 25°C - Operating Temperature -40°C to +125°C<br>**Part Number**<br>**Transformer**<br>**with 2-1 T**<br>**Primaries**<br>**Schem.**<br>**Figure**<br>**Part Number**<br>**Transformer**<br>**with 1T**<br>**Primary**<br>**Schem.**<br>**Figure**<br>**Part Number**<br>**Inductor**<br>**without**<br>**Primary**<br>**Schem.**<br>**Figure**<br>**Turns**<br>**Ns**<br>**Secondary**<br>**Inductance**<br>**MH**<br>(MIN)<br>**Secondary**<br>**Inductance**<br>**Test Voltage**<br>(15.75 KHz)<br>**RS**<br>(ΩMAX)<br>**RT**<br>(ΩMAX)<br>**Primary**<br>**Unipolar**<br>**Amp**µ**Sec.**<br>**Rating**(MAX)<br>**Primary**<br>**Bipolar**<br>**Amp**µ**Sec.**<br>**Rating**(MAX)|Electrical Specifications @ 25°C - Operating Temperature -40°C to +125°C<br>**Part Number**<br>**Transformer**<br>**with 2-1 T**<br>**Primaries**<br>**Schem.**<br>**Figure**<br>**Part Number**<br>**Transformer**<br>**with 1T**<br>**Primary**<br>**Schem.**<br>**Figure**<br>**Part Number**<br>**Inductor**<br>**without**<br>**Primary**<br>**Schem.**<br>**Figure**<br>**Turns**<br>**Ns**<br>**Secondary**<br>**Inductance**<br>**MH**<br>(MIN)<br>**Secondary**<br>**Inductance**<br>**Test Voltage**<br>(15.75 KHz)<br>**RS**<br>(ΩMAX)<br>**RT**<br>(ΩMAX)<br>**Primary**<br>**Unipolar**<br>**Amp**µ**Sec.**<br>**Rating**(MAX)<br>**Primary**<br>**Bipolar**<br>**Amp**µ**Sec.**<br>**Rating**(MAX)|Electrical Specifications @ 25°C - Operating Temperature -40°C to +125°C<br>**Part Number**<br>**Transformer**<br>**with 2-1 T**<br>**Primaries**<br>**Schem.**<br>**Figure**<br>**Part Number**<br>**Transformer**<br>**with 1T**<br>**Primary**<br>**Schem.**<br>**Figure**<br>**Part Number**<br>**Inductor**<br>**without**<br>**Primary**<br>**Schem.**<br>**Figure**<br>**Turns**<br>**Ns**<br>**Secondary**<br>**Inductance**<br>**MH**<br>(MIN)<br>**Secondary**<br>**Inductance**<br>**Test Voltage**<br>(15.75 KHz)<br>**RS**<br>(ΩMAX)<br>**RT**<br>(ΩMAX)<br>**Primary**<br>**Unipolar**<br>**Amp**µ**Sec.**<br>**Rating**(MAX)<br>**Primary**<br>**Bipolar**<br>**Amp**µ**Sec.**<br>**Rating**(MAX)|
|---|---|---|---|---|---|---|---|---|---|---|---|---|
||1C<br>**PE-63586NL**|**PE-63586NL**|1A|**PE-51686NL**|2A|50|5.0|0.5|0.7<br>~~a~~|50<br>~~a~~|150<br>~~a~~|300|
|**PE-64487NL**|1C<br>**PE-63587NL**<br>~~——~~|**PE-63587NL**<br>~~——~~|1A<br>|**PE-51687NL**<br>|2A<br>|100|2.0|1.0|1.40<br>~~a~~|100<br>~~a~~|300<br>~~a~~|600|
|**PE-64488NL**|1C<br>**PE-63588NL**<br>~~——~~<br>~~**=**~~|**PE-63588NL**<br>~~——~~<br>~~**=**~~|1A<br>~~aa~~<br>|**PE-51688NL**<br>~~aa~~|2A<br>~~aa~~|200|80.0|2.0|4.50<br>~~a~~|200<br>~~a~~|600<br>~~a~~|1200|
|**PE-64517NL**|1D<br><br>~~**=**~~<br>~~ae~~|~~**=**~~<br>~~ae~~|~~aa~~<br><br>~~ae~~|**PE-51717NL**<br>~~aa~~|2B<br>~~aa~~|50CT|5.0|0.5|0.7|50|150|300|
|**PE-64518NL**|1D<br>**PE-63618NL**<br><br>~~**=**~~<br>~~ae~~<br>~~——~~|**PE-63618NL**<br><br>~~**=**~~<br>~~ae~~<br>~~——~~|1B<br>~~aa~~<br><br>~~ae~~|**PE-51718NL**<br>~~aa~~|2B<br>~~aa~~|100CT|20.0|1.0|1.40|100|300|600|
|**PE-64519NL**|1D<br>**PE-63619NL**<br><br>~~**=**~~<br>~~ae~~<br>~~——~~<br>~~=~~|**PE-63619NL**<br><br>~~**=**~~<br>~~ae~~<br>~~——~~<br>~~=~~|1B<br>~~aa~~<br>~~—~~<br>~~ae~~|**PE-51719NL**<br>~~aa~~|2B<br>~~aa~~|200CT|80.0|2.0|4.50|200|600|1200|
|~~=~~|**PE-63691NL**<br><br>~~**=**~~<br>~~ae~~<br>~~=~~|**PE-63691NL**<br><br>~~**=**~~<br>~~ae~~<br>~~=~~|1B<br>~~aa~~<br><br>~~ae~~|~~aa~~|~~aa~~|300CT|180.0|3.0|11.0|300|900|1800|



   4. When terminated with rated terminating resistance, the inductor scale factor is Vout = 1 volt per amp. for center tapped units terminating resistance for each half of winding is listed value divided by two. 

2. Amp-microsend (AµSec.) rating of primary equalts volt microsend (VµSec.) rating of secondary when secondary is terminated in rated resistance.  (Amp - microsends is equal to the product of a square pulse of current in amps, times the current pulse width in microseconds. 

   5. 1 turn primary peak sense current is 20 amps for all parts listed above. 

3. Maximum operating temperature 105°C (ambient plus rise). 

P578.E (09/19) http://www.power.pulseelectronics.com/contact 

power.pulseelectronics.com 

1 

## THT Current Sense Transformers & Inductors 

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## **Mechanicals** 

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**----- Start of picture text -----**<br>
PE-XXXXX<br>1 6 3<br>PE-XXXXX 4 0.700<br>DATE CODE 17,78  [MAX]<br>2 7 5<br>0.900<br>22,86  [MAX]<br>V<br>D E 0.700<br>17,78  [MAX]<br>1441<br> .500<br>.010<br>12,70  [MIN]<br>0,25  [MIN]<br>.200 .250<br>5,08 6,35<br>4X1,30.051 ±.003,076 0.700 2X.030 ±.0020,76 ,051 .500<br>(Leads: 1,2,6,7) 17,78 (Leads: 3,5) 12,70<br>**----- End of picture text -----**<br>


**==> picture [543 x 222] intentionally omitted <==**

**----- Start of picture text -----**<br>
Schematic<br>1A 1B 1C<br>1 3 1 3 1 3<br>2<br>4<br>6<br>2 5 2 5 7 5<br>1D 2A 2B<br>1 3 1 1<br>2<br>4 2<br>6<br>3 3<br>7 5<br>**----- End of picture text -----**<br>


|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. 

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

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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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