SC-07-42J

Common Mode Chokes Overview

The KEMET SC-07-42J is a single-channel common mode choke designed for AC line filtering applications. It features a ferrite core and through-hole termination for PCB mounting. The component provides an inductance of 4.2 mH with a maximum DC current rating of 7 A and a maximum DC resistance of 42 mOhms. It operates within a temperature range of -40°C to +120°C and is rated for 250V AC.

Common Mode Chokes Feature Summary

• Utilizes proprietary 5H, 7H, or 10H ferrite materials for effective noise suppression
• Optimized for electromagnetic compatibility (EMC) and radio frequency interference (RFI) mitigation
• Designed for operation in the frequency range greater than or equal to 150 kHz

Common Mode Chokes Applications

• AC line filtering
• Electromagnetic compatibility (EMC) suppression
• Radio frequency interference (RFI) mitigation

Common Mode Chokes Procurement Notes

Verify the specific ferrite material grade (5H, 7H, or 10H) as this may vary by production batch or sub-part number suffix. Confirm that the operating environment remains within the specified -40°C to +120°C thermal limits. Ensure the circuit voltage does not exceed the 250V AC rating and that the continuous current stays below the 7A saturation point to maintain performance integrity.

Common Mode Chokes Selection Notes

Select this component when high-current common mode filtering is required at lower frequencies starting from 150 kHz. The 4.2 mH inductance offers significant attenuation for differential mode noise coupled onto the common mode path. The through-hole package facilitates robust mechanical attachment on printed circuit boards where vibration resistance is critical.

Common Mode Chokes Part Context

This part belongs to the SC-E-J series of common mode chokes manufactured by KEMET. These components are engineered for general-purpose EMC/RFI suppression in power supply inputs and motor drive circuits. The series utilizes specialized ferrite formulations to balance high permeability with low core losses under high current conditions.

Common Mode Chokes Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify pinout compatibility and physical dimensions against alternative suppliers if cross-referencing other manufacturers' offerings.