FMD-4204S

Diode Arrays Overview

The FMD-4204S is a fast recovery diode manufactured by Sanken Electric. It features a maximum repetitive peak reverse voltage of 400 V and an average forward current rating of 20 A. The device achieves a maximum reverse recovery time of 50 ns through optimized lifetime control. Electrical characteristics include a forward voltage drop of 1.4 V at 10 A and a junction temperature range from -40 to 150 °C. The component utilizes a TO3PF-3L package with bare leads that are lead-free and RoHS compliant.

Diode Arrays Feature Summary

• Optimized lifetime control enables a maximum reverse recovery time of 50 ns for high-speed switching applications.
• Dual-chip configuration within the TO3PF-3L package provides a 20 A average forward current capability.
• Lead-free construction ensures compliance with RoHS directives and environmental standards.

Diode Arrays Applications

• Power Factor Correction (PFC) circuits
• Inverter circuits

Diode Arrays Procurement Notes

Verify the specific datasheet revision, currently Rev.1.1 dated September 27, 2022, against your design requirements. Confirm that the application environment does not involve aerospace, nuclear power, or Class III medical devices, as these are explicitly excluded from standard liability coverage. Ensure proper heatsink mounting torque between 0.686 and 0.882 N·m during installation.

Diode Arrays Selection Notes

Select this component when designing circuits requiring a 400 V blocking voltage and 20 A continuous current handling. The TO3PF-3L package is suitable for board-level mounting where thermal resistance to case is 2.5 °C/W. Consider the 1.4 V forward voltage drop at 10 A for efficiency calculations. Verify that the operating junction temperature remains within the specified -40 to 150 °C range under all load conditions.

Diode Arrays Part Context

The FMD-4204S belongs to Sanken Electric's discrete semiconductor diode portfolio. It is engineered specifically for power electronics applications demanding fast recovery characteristics. The device integrates two chips into a single three-terminal package to handle significant current loads while maintaining compact physical dimensions.

Diode Arrays Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Consult Sanken Electric sales representatives for potential cross-reference options or updated product line replacements.

Diode Arrays FAQ

What is the thermal resistance between the junction and the case?

The thermal resistance Rth(J-C) is specified as a maximum of 2.5 °C/W, measured at the backside near the screw hole.

How is the reverse recovery time defined for this component?

The maximum reverse recovery time (trr1) is 50 ns, measured at IF = IRP = 500 mA with a 90% recovery point at TJ = 25 °C.

What are the pin configurations for the TO3PF-3L package?

Pin 1 is Anode, Pin 2 is Cathode, and Pin 3 is Anode.