MSD1278H-223MED

Common Mode Chokes Overview

The Coilcraft MSD1278H-223MED is a shielded coupled power inductor designed for high-temperature automotive applications. It features a ferrite core and surface-mount termination. Key electrical parameters include an inductance of 22 µH at 100 kHz, a maximum DC current rating of 4.06 A, and a maximum DC resistance of 68 mOhms. The component operates within a temperature range of -40°C to +125°C.

Common Mode Chokes Feature Summary

• Magnetic shielding provides compact packaging and tight winding-to-winding coupling.
• High-temperature construction supports operation up to +125°C.
• Ferrite core material ensures stable performance characteristics.

Common Mode Chokes Applications

• Automotive power supply circuits
• DC-DC converter stages
• High-temperature filtering applications

Common Mode Chokes Procurement Notes

Verify the specific suffix MED against official Coilcraft documentation to confirm terminal plating and tape-and-reel specifications. Confirm RoHS compliance status and AEC-Q200 qualification requirements with the manufacturer prior to integration into production designs.

Common Mode Chokes Selection Notes

Select this component when high thermal stability and magnetic shielding are required in space-constrained automotive environments. Ensure the 4.06 A current rating and 68 mOhms DCR meet the specific circuit efficiency and saturation requirements of the target application design.

Common Mode Chokes Part Context

This part belongs to the MSD1278H series of high-temperature coupled inductors from Coilcraft. The series is engineered for robust performance in demanding automotive electronics, offering consistent inductance values and low resistance across the operating temperature range.

Common Mode Chokes Replacement Considerations

MSD1278H-223MLB is a documented alternative variant within the same series offering similar electrical characteristics but potentially different packaging or tolerance specifications.