PE-51688NL

Current Sense Transformers Overview

The PE-51688NL is a board-mount current sense transformer manufactured by Pulse Electronics. It features a 200:1 turns ratio and an inductance of 80 mH. The device operates within a frequency range of 20 kHz to 200 kHz. Primary DC resistance is 200 Ohms, while secondary DC resistance is 4.5 Ohms. It supports a maximum primary current of 20 A. The component utilizes a through-hole mounting style with a lead pitch of 12.7 mm.

Current Sense Transformers Feature Summary

• Provides galvanic isolation for current sensing applications
• Designed for high-frequency operation up to 200 kHz
• Through-hole construction for secure PCB integration

Current Sense Transformers Applications

• Switch-mode power supply current monitoring
• Inverter control circuits
• Motor drive protection systems

Current Sense Transformers Procurement Notes

Verify the specific datasheet version for the PE-51688NL to confirm mechanical dimensions and electrical tolerances prior to design finalization. Ensure that the selected supplier provides documentation confirming RoHS compliance status as required by your manufacturing standards. Cross-reference the pinout configuration with your PCB footprint library to prevent assembly errors during production.

Current Sense Transformers Selection Notes

Select this component when a high-isolation voltage current sensor is required for frequencies between 20 kHz and 200 kHz. The 200:1 ratio suits applications where low secondary current is needed for precise measurement. Consider the 20 A primary rating against peak load conditions. The through-hole package offers robust mechanical stability compared to surface-mount alternatives in high-vibration environments.

Current Sense Transformers Part Context

This part belongs to Pulse Electronics' board-mount current transformer series. These components are engineered for reliable performance in power electronics. The PE-51688NL specifically targets applications requiring accurate current feedback without direct electrical connection to the primary circuit. It complements other sensors in the family offering different ratios or inductance values.

Current Sense Transformers Replacement Considerations

Consult official substitution lists from Pulse Electronics for verified equivalents. Generic replacements may differ in core material or saturation characteristics. Verify that any substitute maintains the 200:1 ratio and 80 mH inductance to ensure circuit stability.