MSD7342-105MLC

Common Mode Chokes Overview

The MSD7342-105MLC is a shielded coupled power inductor from the Coilcraft MSD7342 series, designed for surface-mount applications. It features a ferrite core with a 1:1 coupling ratio and an inductance of 1000 µH per winding, measured at 100 kHz. The component supports a maximum current rating of 200 mA and exhibits a DC resistance (DCR) of 7.8 Ohms. It operates within a temperature range of -40°C to +85°C and complies with AEC-Q200 standards for automotive reliability.

Common Mode Chokes Feature Summary

• Magnetic shielding provides compact packaging and minimizes electromagnetic interference.
• Tight winding-to-winding coupling ensures efficient energy transfer in coupled circuits.
• RoHS compliant construction suitable for environmentally conscious manufacturing.

Common Mode Chokes Applications

• SEPIC converter topologies
• Automotive electronics systems
• General-purpose DC-DC conversion

Common Mode Chokes Procurement Notes

Verify the specific suffix code (e.g., MLC) against the manufacturer's datasheet to confirm termination type and packaging configuration. Ensure the selected variant meets the required AEC-Q200 qualification if used in automotive environments. Cross-reference part numbers carefully as suffixes may indicate differences in lead finish or reel specifications without altering electrical performance.

Common Mode Chokes Selection Notes

Select this component when a high-inductance coupled inductor is required for SEPIC or similar multi-winding applications. The 1000 µH value and 200 mA current rating define the operational limits. Consider the 7.8 Ohm DCR for efficiency calculations. Verify that the 7.5 x 7.5 mm footprint fits the PCB layout constraints.

Common Mode Chokes Part Context

This part belongs to the MSD7342 series of shielded coupled power inductors manufactured by Coilcraft. The series offers various inductance values while maintaining consistent physical dimensions and magnetic shielding characteristics. These components are engineered for high-performance power management solutions requiring tight coupling and low profile.

Common Mode Chokes Replacement Considerations

Direct replacements must match the 1000 µH inductance, 200 mA current rating, and 7.8 Ohm DCR. Verify compatibility with SEPIC topologies. Check for equivalent AEC-Q200 certification if automotive use is intended. Footprint matching is critical for direct substitution.