MSD1278H-124KED

Common Mode Chokes Overview

The Coilcraft MSD1278H-124KED is a high-temperature, shielded coupled power inductor from the MSD1278H series. It features a ferrite core and surface-mount construction with dimensions of 12.3mm x 12.3mm x 8.05mm. The component provides an inductance of 120 µH per winding with a 1:1 turns ratio. Key electrical specifications include a maximum DC resistance of 0.205 ohms, a saturation current of 3.2A, and an RMS current rating of 960mA. It operates within a temperature range of -40°C to +125°C.

Common Mode Chokes Feature Summary

• Magnetic shielding for compact packaging and tight winding-to-winding spacing
• High-temperature design suitable for demanding thermal environments
• Ferrite core construction for stable performance

Common Mode Chokes Applications

• Automotive electronics requiring AEC-Q200 compliance
• DC-DC converter circuits
• Power supply filtering applications

Common Mode Chokes Procurement Notes

Verify the specific suffix KED against official Coilcraft documentation to confirm tolerance and packaging details. Ensure the procurement channel sources genuine components to guarantee adherence to the specified high-temperature ratings and magnetic shielding characteristics defined in the manufacturer datasheet.

Common Mode Chokes Selection Notes

Select this component when high-temperature operation up to 125°C is required alongside magnetic shielding. The 12.3mm square footprint suits space-constrained designs. Confirm that the 120µH inductance and 3.2A saturation current meet the specific circuit requirements for coupled inductor topologies.

Common Mode Chokes Part Context

This part belongs to the MSD1278H series, which specializes in high-temperature coupled power inductors. The series utilizes ferrite cores and offers various inductance values within a standardized 12.3mm x 12.3mm package. It is designed for applications where thermal stability and electromagnetic interference reduction are critical.

Common Mode Chokes Replacement Considerations

Consult the official Coilcraft MSD1278H datasheet for direct cross-references. Verify that any substitute maintains the 12.3mm x 12.3mm x 8.05mm footprint, 125°C operating temperature limit, and equivalent 120µH coupled inductance specifications.