PE-51688

Current Sense Transformers Overview

The PE-51688 is a through-hole current sense transformer manufactured by Pulse Electronics. It operates within a frequency range of 20 kHz to 200 kHz and supports a current rating of 20 A. The device features an inductance of 80 mH, with primary and secondary resistances of 200 Ohms and 4.5 Ohms, respectively. Designed for board mounting, it utilizes a toroidal core structure.

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

• Switching mode power supplies (SMPS)
• Current sensing in industrial control systems
• Over-current protection circuits

Current Sense Transformers Procurement Notes

Verify the specific ordering suffix against official documentation to ensure correct configuration. Confirm that the required through-hole mounting style aligns with the target PCB design. Check RoHS compliance status directly from the manufacturer's datasheet before finalizing component selection for production.

Current Sense Transformers Selection Notes

Select this component when a dedicated current sense transformer is required rather than a shunt resistor. Ensure the operating frequency falls within the 20 kHz to 200 kHz range. Verify that the 20 A current rating meets the maximum load requirements of the application circuit without saturation.

Current Sense Transformers Part Context

This part belongs to the family of current sense transformers offered by Pulse Electronics. It serves as a specialized passive component for feedback loops in power electronics. The design focuses on providing precise current measurement while maintaining galvanic isolation between high-voltage and low-voltage sections of the system.

Current Sense Transformers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material. Consult official distributor databases or manufacturer cross-reference guides for compatible alternatives if this specific model is unavailable.