MSD7342-124MLC

Common Mode Chokes Overview

The MSD7342-124MLC is a shielded coupled power inductor from the Coilcraft MSD7342 series, designed for surface-mount technology. It features a 1:1 coupling ratio and an inductance of 120 µH with a tolerance of ±20%. The component has a DC resistance of 1.03 Ω and a rated current of 0.55 A. It utilizes a ferrite core within a compact 7.5 x 7.5 x 4.6 mm package. The device is AEC-Q200 qualified for automotive applications.

Common Mode Chokes Feature Summary

• Features magnetic shielding to minimize electromagnetic interference and allow for compact packaging.
• Provides tight winding-to-winding coupling suitable for efficient power conversion topologies.
• Constructed with a rectangular SMT form factor for automated assembly compatibility.

Common Mode Chokes Applications

• SEPIC converter circuits
• Automotive electronics systems
• DC-DC converter designs

Common Mode Chokes Procurement Notes

Verify the specific suffix 'MLC' against official Coilcraft documentation to confirm material composition and compliance status. Ensure the selected variant matches the required AEC-Q200 qualification if used in automotive contexts. Cross-reference the part number with the manufacturer's latest datasheet to confirm availability of the specific tape-and-reel configuration.

Common Mode Chokes Selection Notes

Select this component when designing SEPIC or similar converters requiring high coupling efficiency in a small footprint. The 120 µH value and 0.55 A rating define the operating range. Consider the 1.03 Ω DC resistance for thermal management. Verify that the 7.5 mm square package fits the PCB layout constraints compared to other series options.

Common Mode Chokes Part Context

This part belongs to the MSD7342 series of shielded coupled power inductors manufactured by Coilcraft. The series is characterized by its 1:1 coupling ratio and magnetic shielding, which supports dense circuit layouts. The MSD7342-124MLC specifically denotes the 120 µH variant within this family, distinguished by its specific electrical parameters and automotive qualification.

Common Mode Chokes Replacement Considerations

Consult the Coilcraft MSD7342 series selection guide for alternative inductance values or current ratings within the same package. Verify pinout and physical dimensions before substituting with components from other manufacturers to ensure mechanical fit and electrical equivalence.