1N3890A

Single Diodes Overview

The Microchip Technology 1N3890A is a standard single rectifier diode designed for high-current applications. It features a maximum DC reverse voltage of 100 V and an average forward rectified current rating of 20 A. The device utilizes a stud mount installation method within the DO-203AA (DO-4) package. Key electrical characteristics include a maximum forward voltage of 1.5 V at 38 A and a reverse leakage current of 10 µA at 100 V. The junction temperature range spans from -65°C to 175°C, with a specified reverse recovery time of 150 ns.

Single Diodes Feature Summary

• High current handling capability suitable for power rectification tasks
• Robust thermal performance allowing operation up to 175°C junction temperature
• Fast recovery characteristics with a 150 ns reverse recovery time
• Stud mount construction for secure mechanical attachment and heat dissipation

Single Diodes Applications

• Industrial power supply rectification circuits
• Battery charging systems requiring high current capacity
• Welding equipment power stages
• DC motor drive protection circuits

Single Diodes Procurement Notes

Verify component authenticity through authorized Microchip distributors or certified suppliers. Confirm the specific manufacturing date code and lot traceability required for your assembly process. Ensure the DO-203AA package dimensions match your thermal interface design. Check for RoHS compliance status as indicated in official documentation, noting this specific part may not meet all environmental directives depending on the production batch.

Single Diodes Selection Notes

Select this component when designing circuits requiring a 100 V blocking voltage and 20 A continuous current handling. The stud mount package necessitates compatible heatsinking infrastructure for effective thermal management. Consider the 1.5 V forward voltage drop for efficiency calculations under load. Verify that the 150 ns reverse recovery time meets the switching frequency requirements of the target application without causing excessive switching losses.

Single Diodes Part Context

The 1N3890A belongs to the 1N3889–1N3891 series of high-power rectifier diodes manufactured by Microchip Technology. These components are engineered for rugged industrial environments where reliability under high stress conditions is critical. The DO-203AA package provides a standardized footprint for mounting onto chassis or heatsinks, facilitating integration into larger power conversion modules and heavy-duty electronic systems.

Single Diodes Replacement Considerations

Consult official Microchip documentation for verified cross-reference part numbers. Ensure any substitute maintains identical voltage, current, and package specifications.