FMXA-4203S

Diode Arrays Overview

The FMXA-4203S is a fast recovery diode manufactured by Sanken Electric. It features a repetitive peak reverse voltage of 300 V and an average forward current rating of 20 A. The device achieves a maximum reverse recovery time of 25 ns through optimized lifetime control. Key electrical parameters include a maximum forward voltage drop of 1.30 V at 10 A and a nonrepetitive peak reverse voltage of 300 V. Surge forward current capability is rated at 100 A for a half-cycle sine wave. The component operates within a junction temperature range of -40 to 150 °C.

Diode Arrays Feature Summary

• Optimized lifetime control enables a maximum reverse recovery time of 25 ns.
• Low thermal resistance package design facilitates efficient heat dissipation.
• Bare lead frame construction ensures compliance with RoHS standards.

Diode Arrays Applications

• Secondary-side rectifier diodes in flyback converters
• Secondary-side rectifier diodes in LLC converters
• Freewheel diodes in offline buck converters
• Freewheel diodes in offline buck-boost converters

Diode Arrays Procurement Notes

Verify the specific datasheet revision, such as Rev.1.3, against official Sanken Electric documentation before procurement. Confirm that the TO3PF-3L package dimensions and mounting screw torque specifications align with your heatsink requirements. Ensure compliance with export control regulations if applicable to your region.

Diode Arrays Selection Notes

Select this component for applications requiring high-speed switching and robust current handling. The 20 A average forward current rating supports substantial power loads. The low reverse recovery time minimizes switching losses in high-frequency circuits. Verify thermal management capabilities based on the specified junction-to-case thermal resistance.

Diode Arrays Part Context

This component belongs to the Sanken Electric fast recovery diode series designed for power conversion applications. It utilizes a three-terminal TO3PF-3L package configuration. The device integrates two internal chips to achieve its specified performance metrics. It is engineered for general-purpose electronic equipment and apparatus.

Diode Arrays Replacement Considerations

Consult official Sanken Electric documentation for confirmed substitute part numbers. Do not assume cross-compatibility with other manufacturers' components without verifying electrical and mechanical specifications.

Diode Arrays FAQ

What is the maximum reverse recovery time for the FMXA-4203S?

The maximum reverse recovery time is 25 ns, measured under conditions of IF = IRP = 500 mA at a 90% recovery point.

How many terminals does the FMXA-4203S package have?

The FMXA-4203S uses a TO3PF-3L package which contains three terminals: two Anodes and one Cathode.

What is the maximum surge forward current rating?

The nonrepetitive peak surge forward current is rated at 100 A for a half-cycle sine wave lasting 10 ms.