FMD-4206S

Diode Arrays Overview

The FMD-4206S is a fast recovery diode manufactured by Sanken Electric USA Inc. It features a repetitive peak reverse voltage of 600 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 1.7 V at 10 A and a junction-to-case thermal resistance of 2.0 °C/W. Surge forward current capability reaches 100 A for a half-cycle sine wave. The component operates within a junction temperature range of -40 to 150 °C and utilizes a TO3PF-3L package.

Diode Arrays Feature Summary

• Optimized lifetime control enables a maximum reverse recovery time of 50 ns
• High surge forward current capability ensures robustness during transient phases
• Bare leads are lead-free and compliant with RoHS standards
• Package flammability rating is equivalent to UL94V-0

Diode Arrays Applications

• Power Factor Correction (PFC) circuits
• Inverter circuits

Diode Arrays Procurement Notes

Verify the specific revision code on the datasheet, as specifications may be updated without notice. Confirm that the application environment complies with general purpose electronic equipment standards. For high-reliability applications such as transportation or medical systems, contact Sanken sales representatives directly to discuss suitability and obtain necessary documentation signatures prior to implementation.

Diode Arrays Selection Notes

Select this component when a 600 V blocking voltage and 20 A continuous current handling are required in a through-hole configuration. The TO3PF-3L package facilitates heatsink mounting via screw terminals. Ensure the design accounts for the specified thermal resistance of 2.0 °C/W between the junction and case. Verify that the operating frequency and switching speed requirements align with the 50 ns reverse recovery characteristic.

Diode Arrays Part Context

The FMD-4206S belongs to the FMD series of fast recovery diodes produced by Sanken Electric. This series is engineered for high-efficiency power conversion applications requiring low reverse recovery charge. The device integrates two chips within a single TO3PF-3L housing to manage high current loads while maintaining compact physical dimensions suitable for industrial power supplies.

Diode Arrays Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.

Diode Arrays FAQ

What is the maximum reverse recovery time specified for the FMD-4206S?

The maximum reverse recovery time (trr1) is 50 ns under conditions of IF = IRP = 500 mA and TJ = 25 °C.

How is the thermal performance defined for this component?

The thermal resistance from junction to case (Rth(J-C)) is specified as 2.0 °C/W, measured at the backside near the screw hole.

What is the surge forward current rating?

The nonrepetitive peak reverse voltage allows for a surge forward current (IFSM) of 100 A for a half-cycle sine wave lasting 10 ms.