RD7137-25-1M3

Overview

The Schaffner EMC Inc. RD7137-25-1M3 is a triple-line common mode choke designed for power line applications. It features an inductance of 1.3 mH at 400 Hz and supports a typical nominal current of 25 A. The component has a maximum operating voltage of 600 VAC and a typical DC resistance of 4.45 mOhm. Constructed with through-hole mounting, it utilizes Litz wire connections for both input and output terminals. This device operates within a frequency range from DC to 400 Hz and is suitable for phase-angle control circuits.

Feature Summary

• Triple-line configuration for three-phase power filtering
• Litz wire construction for efficient high-frequency performance
• Through-hole mounting for robust mechanical stability

Applications

• Phase-angle control circuits
• Power line EMI suppression
• Industrial equipment filtering

Procurement Notes

Verify the specific RoHS compliance status (ROHS3) and lead-free designation with the manufacturer or authorized distributor before procurement. Confirm that the 25A typical current rating and 600VAC maximum voltage align with your system's operational requirements. Ensure the through-hole package dimensions and Litz wire termination style are compatible with your PCB layout or wiring harness design to avoid integration issues.

Selection Notes

Select this component when a triple-line common mode choke is required for 400 Hz power systems. The 1.3 mH inductance value provides specific attenuation characteristics suitable for industrial noise environments. Consider the 25A current capacity and low DC resistance to minimize power loss. Verify compatibility with phase-angle control applications and ensure the physical size fits the available mounting space.

Part Context

This part belongs to the Schaffner RD series of EMC/RFI chokes, which offer dual, triple, and quad configurations. The series supports rated currents from 6 to 64A and voltages up to 600VAC or 850VDC. These components are engineered for DC to 400Hz frequencies, providing reliable filtering solutions for various industrial and medical device power applications.

Replacement Considerations

Publicly confirmed substitute part numbers for the RD7137-25-1M3 are not available in the provided documentation. Users should consult Schaffner EMC technical support for equivalent alternatives that match the 1.3 mH inductance, 25A current rating, and triple-line configuration.