MSD7342-334MLC

Common Mode Chokes Overview

The MSD7342-334MLC is a shielded coupled inductor from Coilcraft, designed for high-efficiency power conversion. It features a ferrite core and surface-mount construction within a 3030 package. Key electrical parameters include an inductance of 330 µH at 100 kHz, a DC resistance (DCR) of 2.7 Ohms, and a current rating of 340 mA. The device offers tight coupling with a coefficient k ≥ 0.97 and provides 200 V isolation between windings. It operates within a temperature range of -40 °C to 85 °C.

Common Mode Chokes Feature Summary

• Provides tight magnetic coupling suitable for flyback, SEPIC, and multi-output buck topologies
• Features 200 Vrms winding-to-winding isolation for safety-critical applications
• Utilizes a shielded design to minimize electromagnetic interference

Common Mode Chokes Applications

• Flyback converter circuits
• SEPIC (Single-Ended Primary Inductor Converter) designs
• Multi-output buck converters

Common Mode Chokes Procurement Notes

Verify the specific suffix against official Coilcraft documentation to confirm exact tolerance and packaging specifications. Ensure the component meets RoHS compliance requirements for your target market. Cross-reference the datasheet revision date to guarantee alignment with current manufacturing standards and pinout configurations before finalizing procurement orders.

Common Mode Chokes Selection Notes

Select this component when high isolation voltage and tight coupling are required in compact power stages. The 330 µH value suits low-power isolated or non-isolated topologies requiring precise energy transfer. Consider the 340 mA current limit and thermal performance within the 3030 footprint during PCB layout planning.

Common Mode Chokes Part Context

This part belongs to the MSD7342 series of coupled inductors manufactured by Coilcraft. The series is engineered for general-purpose power applications, offering versatility as coupled inductors, common mode chokes, or transformers. The MSD7342-334MLC specifically denotes the 330 µH variant with molded lead configuration.

Common Mode Chokes Replacement Considerations

Consult official Coilcraft substitution guides for verified equivalents. Direct replacements must match the 330 µH inductance, 2.7 Ohm DCR, and 3030 package dimensions while maintaining 200 V isolation ratings.