MSD7342-123MLC

Common Mode Chokes Overview

The MSD7342-123MLC is a shielded coupled inductor from the Coilcraft MSD7342 series, designed for surface-mount technology. It features a ferrite core and a 1:1 turns ratio with an inductance of 12 µH and a tolerance of ±20%. The component supports a maximum DC current of 1.61 A per winding and exhibits a maximum DC resistance of 120 mΩ. It operates within a temperature range of -40°C to +85°C and holds AEC-Q200 qualification. The physical dimensions are 7.5 mm x 7.5 mm x 4.6 mm.

Common Mode Chokes Feature Summary

• High coupling coefficient (k ≥ 0.94) optimized for SEPIC converter topologies
• Shielded construction minimizes electromagnetic interference
• AEC-Q200 qualified for automotive reliability standards

Common Mode Chokes Applications

• SEPIC power supply circuits
• Automotive electronic systems
• DC-DC conversion modules

Common Mode Chokes Procurement Notes

Verify the specific suffix 'MLC' against the manufacturer's official datasheet to confirm packaging type and terminal finish specifications. Ensure the order matches the exact part number to avoid discrepancies in electrical characteristics or mechanical footprint. Cross-reference with authorized distributors to validate authenticity and traceability documentation.

Common Mode Chokes Selection Notes

Select this component when designing SEPIC converters requiring high magnetic coupling and compact SMD integration. Evaluate thermal performance under load conditions relative to the specified current ratings. Confirm that the 12 µH inductance value aligns with the target switching frequency and efficiency requirements of the power stage design.

Common Mode Chokes Part Context

This component belongs to the MSD7342 series of coupled inductors manufactured by Coilcraft. The series is characterized by its shielded design and suitability for applications demanding tight magnetic coupling between windings. It serves as a specialized passive component for efficient power management in constrained spaces.

Common Mode Chokes Replacement Considerations

Consult the official Coilcraft MSD7342 series datasheet for verified substitute part numbers with compatible inductance and current ratings. Do not assume interchangeability with other series without verifying pinout and electrical parameter alignment.

Common Mode Chokes FAQ

What is the minimum coupling coefficient for the MSD7342 series?

The MSD7342 series maintains a coupling coefficient of k ≥ 0.94.

Is the MSD7342-123MLC suitable for automotive applications?

Yes, it is AEC-Q200 qualified for automotive reliability standards.