MSD1278H-824KED

Common Mode Chokes Overview

The Coilcraft MSD1278H-824KED is a high-temperature, shielded coupled power inductor from the MSD1278H series. It features a ferrite core and surface-mount termination style with dimensions of 12.3 mm x 12.3 mm x 7.8 mm. The component provides an inductance of 820 µH in parallel configuration and 3.28 mH in series, with a tolerance of 10%. It supports a maximum DC current of 1.5 A and has a maximum DC resistance of 1.6 Ohms. The device operates within a temperature range of -40°C to +125°C and holds AEC-Q200 qualification for automotive reliability.

Common Mode Chokes Feature Summary

• High-temperature design suitable for demanding thermal environments
• Magnetic shielding reduces electromagnetic interference
• AEC-Q200 qualified for automotive applications

Common Mode Chokes Applications

• Automotive power supply circuits
• DC-DC converter stages
• High-temperature industrial electronics

Common Mode Chokes Procurement Notes

Verify the specific suffix KED against official Coilcraft documentation to confirm pinout and tolerance specifications. Confirm availability status as distribution channels may vary. Ensure the procurement source provides valid RoHS compliance certificates. Cross-reference the manufacturer part number with the latest datasheet revision to avoid obsolete stock.

Common Mode Chokes Selection Notes

Select this component when high thermal stability and magnetic shielding are required in compact spaces. The 1:1 coupling ratio suits balanced power delivery needs. Verify that the 1.5 A current rating meets the circuit's continuous load requirements. Consider the 125°C maximum operating temperature for harsh environment deployments.

Common Mode Chokes Part Context

This part belongs to the MSD1278H series, which specializes in high-temperature coupled power inductors. The series utilizes a drum core structure with magnetic shielding to minimize size while maintaining performance. It is designed for applications requiring robustness against thermal stress and electromagnetic noise.

Common Mode Chokes Replacement Considerations

MSD1278H-824 is a related variant within the same series. Verify electrical parameters and physical dimensions before substitution.