PE-51687NL

Current Sense Transformers Overview

The PE-51687NL is a board-mount current sense transformer manufactured by Pulse Electronics, designed for through-hole mounting. It features a rated primary current of 20 A and operates within a frequency range of 20 kHz to 200 kHz. The component has an inductance of 20 mH with a secondary resistance of 100 Ohms. Its physical dimensions are 17.01 mm in length, 9.906 mm in width, and 20.32 mm in height. The unit weighs approximately 10.152 g and supports an operating temperature range from -40°C to +125°C.

Current Sense Transformers Feature Summary

• Provides electrical isolation between primary and secondary circuits for accurate current monitoring.
• Supports high-frequency operation suitable for switching power supply applications.
• Features a robust through-hole construction for secure PCB integration.

Current Sense Transformers Applications

• Current sensing in switch-mode power supplies
• Overcurrent protection circuits
• Power management systems requiring galvanic isolation

Current Sense Transformers Procurement Notes

Verify the specific ordering suffix against the manufacturer's official datasheet to ensure correct packaging and specifications. Confirm that the requested quantity aligns with standard factory pack sizes to avoid unnecessary handling fees or partial reel issues. Ensure compliance with RoHS directives if required by the end product regulations.

Current Sense Transformers Selection Notes

Select this component when a 20 A primary current rating and a 20 kHz to 200 kHz operational bandwidth are required. The 20 mH inductance value should be evaluated against the circuit's impedance matching needs. Consider the through-hole package type if surface mount alternatives are unsuitable for the mechanical stress requirements of the assembly.

Current Sense Transformers Part Context

This part belongs to the Pulse Electronics THT Current Sense Transformers & Inductors series. It is categorized under Board Mount Current Sensors within the broader sensors and transformers product family. The component is actively produced and available for general electronic applications.

Current Sense Transformers Replacement Considerations

Cross-reference with other Pulse Electronics current sense transformers such as the PE-51719NL for similar form factors. Verify that substitute parts match the 20 A current rating and 20-200 kHz frequency range before implementation.

Current Sense Transformers FAQ

What is the turns ratio of the PE-51687NL?

The PE-51687NL has a turns ratio of 100:1 (primary to secondary).

What is the isolation voltage rating?

The component provides an isolation voltage of 3 kV.