MSD1278H-394KED

$3.51

Description：CMC 390UH 1.12A 2LN SMD AEC-Q200
Series：MSD1278H
Mfr：Coilcraft
Package：Strip

SKU:83245563a7c3 Category: Common Mode Chokes Brand: Coilcraft

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Product introduction

MSD1278H-394KED is listed in the Common Mode Chokes range at ChipApex. The manufacturer field lists Coilcraft. Its product description is CMC 390UH 1.12A 2LN SMD AEC-Q200. Review the specifications below when checking this part for your BOM.

Common Mode Chokes specifications for MSD1278H-394KED

Description：CMC 390UH 1.12A 2LN SMD AEC-Q200
Series：MSD1278H
Mfr：Coilcraft
Package：Strip
Filter Type：-
Number of Lines：2
Current Rating (Max)：1.12A
DC Resistance (DCR) (Max)：910mOhm
Voltage Rating - DC：-
Voltage Rating - AC：-
Operating Temperature：-40°C ~ 125°C
Ratings：AEC-Q200
Approval Agency：-
Features：-
Mounting Type：Surface Mount
Size / Dimension：0.484" L x 0.484" W (12.30mm x 12.30mm)
Height (Max)：0.317" (8.05mm)
Package / Case：Nonstandard
Inductance @ Frequency：390 µH @ 100 kHz
Impedance @ Frequency：-

Common Mode Chokes datasheet and documents for MSD1278H-394KED

MSD1278H-394KED

Common Mode Chokes Overview

The Coilcraft MSD1278H-394KED is a high-temperature, shielded coupled power inductor designed for surface mount applications. It features a ferrite core and operates within a temperature range of -40°C to +125°C. The component has an inductance of 390 µH at 100 kHz with a tolerance of ±10%. It supports a maximum DC current of 1.12 A and exhibits a maximum DC resistance of 910 mOhms. The device measures 12.3 mm x 12.3 mm x 8.05 mm and complies with the AEC-Q200 automotive qualification standard.

Common Mode Chokes Feature Summary

Features magnetic shielding to minimize electromagnetic interference and support compact packaging designs.
Constructed with a ferrite core to provide stable performance under high-temperature operating conditions.
Complies with AEC-Q200 standards for reliability in demanding automotive electronic environments.

Common Mode Chokes Applications

Automotive power supply circuits
DC-DC converter stages
Common mode filtering applications

Common Mode Chokes Procurement Notes

Verify the specific suffix (e.g., KED) against official Coilcraft documentation to confirm exact electrical tolerances and packaging configurations. Ensure that the selected variant meets the required thermal management specifications for the target application environment. Cross-reference the part number with authorized distributors to confirm current availability and lead times prior to finalizing procurement plans.

Common Mode Chokes Selection Notes

Select this component when designing systems requiring high-temperature stability and robust magnetic shielding. The 1:1 coupling ratio makes it suitable for balanced power distribution or differential signal paths. Consider the physical footprint and saturation characteristics relative to the circuit's peak current requirements to ensure optimal efficiency and thermal performance.

Common Mode Chokes Part Context

This part belongs to the MSD1278H series of high-temperature coupled power inductors from Coilcraft. The series is characterized by its shielded construction and suitability for automotive-grade applications. It serves as a specialized solution for power electronics where space constraints and thermal resilience are critical design factors.