RD7147-25-0M7

Overview

The Schaffner RD7147-25-0M7 is a current-compensated choke designed for common-mode interference attenuation. It features an inductance of 700 µH at 1 kHz and supports a typical DC current rating of 25 A. The component has a low DC resistance of 3.65 mΩ and operates with voltage ratings of 600 V AC or 850 V DC. It utilizes Litz wire for both input and output terminations, ensuring efficient performance in high-frequency applications.

Feature Summary

• Provides attenuation of common-mode or asymmetric interference signals when connected in series with the phase
• Utilizes Litz wire termination types for optimized electrical characteristics
• Designed as a current-compensated choke for effective noise suppression

Applications

• Attenuating common-mode interference signals in power lines
• Applications requiring series connection with the phase for noise reduction
• General-purpose filtering where current compensation is beneficial

Procurement Notes

Verify the specific inductance tolerance and current rating requirements against your system design before procurement. Confirm that the Litz wire termination style matches your assembly process. Ensure the operating voltage does not exceed the 600 V AC or 850 V DC limits. Check for any specific environmental constraints regarding pollution degree during installation.

Selection Notes

Select this component when common-mode noise suppression is required in circuits handling up to 25 A. The 700 µH inductance provides significant impedance at 1 kHz. Consider the low DCR for minimal power loss. Ensure the physical size accommodates the chassis or panel mount space available in your enclosure design.

Part Context

This part belongs to the RD series of current-compensated chokes from Schaffner EMC Inc. These components are engineered for robust electromagnetic compatibility solutions. The series is known for providing effective attenuation of asymmetric interference signals in various industrial and commercial electronic equipment.

Replacement Considerations

Publicly confirmed substitute part numbers for RD7147-25-0M7 were not identified in the provided documentation. Verify compatibility carefully if considering alternative manufacturers.