PE-51686NL

Current Sense Transformers Overview

The PE-51686NL is a board mount current sense transformer manufactured by Pulse Electronics, designed for through-hole installation. It features a toroidal core and supports a frequency range of 20 kHz to 200 kHz. The component has a primary DC resistance of 50 Ohms and a secondary DC resistance of 700 mOhms. With an inductance of 5 mH and a current rating of 20 A, it provides a turns ratio of 50:1. Physical dimensions are 17.01 mm in length, 9.906 mm in width, and 20.32 mm in height.

Current Sense Transformers Feature Summary

• Through-hole current sensing with 50:1 turns ratio
• Toroidal core construction for efficient magnetic coupling
• Operates within 20 kHz to 200 kHz frequency range

Current Sense Transformers Applications

• Current monitoring in power supply circuits
• Feedback control loops in switching regulators
• Over-current protection systems

Current Sense Transformers Procurement Notes

Verify the specific manufacturer part number against official datasheets to ensure compatibility with design requirements. Confirm that the through-hole package and physical dimensions match the target PCB layout. Check RoHS compliance status if environmental regulations apply to the final product assembly.

Current Sense Transformers Selection Notes

Select this component when a high-isolation current transformer is required for frequencies between 20 kHz and 200 kHz. The 50:1 ratio suits applications needing significant signal attenuation from primary to secondary sides. Ensure the 20 A current rating aligns with the maximum expected load current in the circuit design.

Current Sense Transformers Part Context

This part belongs to the board mount current sensors category from Pulse Electronics. It utilizes a THT (Through-Hole Technology) mounting style, distinguishing it from surface-mount alternatives. The device serves as a passive sensing element within electronic power conversion architectures.

Current Sense Transformers Replacement Considerations

Consult official distributor databases for direct substitutes. Verify that any alternative maintains the 50:1 ratio, 20 A rating, and compatible footprint.

Current Sense Transformers FAQ

What is the primary DC resistance of the PE-51686NL?

The primary DC resistance is 50 Ohms.

Does the PE-51686NL have a shielded or unshielded core?

The component uses a toroidal core configuration.