MSD1278H-273MED

$3.51

Description：CMC 27UH 3.91A 2LN SMD AEC-Q200
Series：MSD1278H
Mfr：Coilcraft
Package：Strip

SKU:41556e7d02db Category: Common Mode Chokes Brand: Coilcraft

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Product introduction

MSD1278H-273MED is listed in the Common Mode Chokes range at ChipApex. The manufacturer field lists Coilcraft. Its product description is CMC 27UH 3.91A 2LN SMD AEC-Q200. Review the specifications below when checking this part for your BOM.

Common Mode Chokes specifications for MSD1278H-273MED

Description：CMC 27UH 3.91A 2LN SMD AEC-Q200
Series：MSD1278H
Mfr：Coilcraft
Package：Strip
Filter Type：-
Number of Lines：2
Current Rating (Max)：3.91A
DC Resistance (DCR) (Max)：78mOhm
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：27 µH @ 100 kHz
Impedance @ Frequency：-

Common Mode Chokes datasheet and documents for MSD1278H-273MED

MSD1278H-273MED

Common Mode Chokes Overview

The Coilcraft MSD1278H-273MED 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 mm x 12 mm x 7.8 mm. The component provides an inductance of 27 uH at a tolerance of 20%. It supports a maximum DC current of 6.2 A and has a maximum DC resistance of 5.7 mOhms. The self-resonant frequency is 49 MHz. It operates within a temperature range of -40 C to +125 C and holds AEC-Q200 qualification.

Common Mode Chokes Feature Summary

High-temperature design suitable for demanding thermal environments
Magnetic shielding for compact packaging and tight winding-to-winding coupling
AEC-Q200 qualified for automotive reliability standards

Common Mode Chokes Applications

Automotive power supply circuits
DC-DC converter modules
Point-of-load regulation systems

Common Mode Chokes Procurement Notes

Verify the specific suffix MED against official Coilcraft documentation to confirm pinout and tolerance specifications. Confirm availability status as distribution channels may report limited stock or restricted supply conditions. Ensure the selected variant matches the required operating temperature range and current ratings for the target application environment.

Common Mode Chokes Selection Notes

Select this component when high thermal stability and automotive qualification are required. The 1:1 coupling ratio and shielded construction make it suitable for differential signal paths or balanced power applications. Compare physical dimensions and saturation characteristics against alternative inductors to ensure PCB layout compatibility and performance requirements are met.

Common Mode Chokes Part Context

This part belongs to the MSD1278H series, which specializes in high-temperature coupled power inductors. The series is designed for applications requiring robust magnetic shielding and reliable performance under elevated temperatures. It complements other Coilcraft power magnetics by offering integrated solutions for space-constrained designs.