1N3900

Single Diodes Overview

The Microchip Technology 1N3900 is a fast recovery rectifier diode designed for high-speed switching applications. It features a 20 A forward current rating and supports reverse voltage ratings ranging from 50 V to 400 V, with the specific variant documented at 100 V. The device utilizes a DO-203AB (DO-5) stud mount package, enabling efficient thermal management. Key electrical characteristics include a maximum junction temperature of 150°C and a reverse recovery time of 200 ns, ensuring reliable performance in demanding power conversion environments.

Single Diodes Feature Summary

• Fast recovery rectification capability with 200 ns reverse recovery time
• High current handling with a 20 A average forward current rating
• Robust thermal design supporting up to 150°C junction temperature
• Stud mount construction for secure mechanical attachment and heat dissipation

Single Diodes Applications

• High-frequency power supply rectification
• Industrial motor drive circuits
• Inverter and converter topologies requiring fast switching

Single Diodes Procurement Notes

Verify the specific reverse voltage suffix against the manufacturer's official datasheet, as the 1N3900 designation covers a voltage range. Confirm the package type matches the required mounting configuration. Ensure the supplier provides traceability documentation consistent with Microchip Technology standards. Cross-reference the part number with authorized distributors to avoid counterfeit components.

Single Diodes Selection Notes

Select this component when high surge current capacity and rapid reverse recovery are critical. The stud mount package is suitable for applications requiring direct heatsink attachment. Evaluate the thermal resistance requirements based on the ambient operating conditions. Consider the voltage derating factors if the application involves transient spikes exceeding the rated VRRM.

Single Diodes Part Context

This component belongs to the 1N3899–1N3903 series of fast recovery rectifiers originally developed by Microsemi Corporation and now manufactured by Microchip Technology. These devices are engineered for general-purpose high-speed rectification where standard silicon diodes lack sufficient speed. The series maintains compatibility with legacy designs while offering improved switching performance over conventional rectifiers.

Single Diodes Replacement Considerations

Direct substitutes include other 1N3900 variants from different manufacturers such as Digitron Semiconductors or New Jersey Semi-Conductor Products, provided they meet the same 20 A current, 100 V reverse voltage, and DO-5 package specifications.