1N5815

Overview

The Microchip Technology 1N5815R is a single fast recovery rectifier designed for stud mount applications. It features a maximum repetitive peak reverse voltage of 125 V and an average forward rectified current of 20 A. The device exhibits a typical forward voltage drop of 950 mV at full load and a maximum reverse leakage current of 10 µA. Key electrical characteristics include a 35 ns reverse recovery time, a surge current rating of 400 A, and a junction capacitance of 300 pF. It operates within a temperature range of -65°C to +175°C.

Feature Summary

• Fast recovery performance with a 35 ns reverse recovery time suitable for high-frequency switching applications
• Robust thermal capability allowing operation up to a junction temperature of 175°C
• High surge current handling capacity rated at 400 A for transient protection
• Stud mount construction in DO-203AA package for efficient heat dissipation

Applications

• Industrial power supply circuits requiring high-speed rectification
• Motor drive systems utilizing stud-mounted components
• Inverter and converter topologies demanding fast recovery characteristics

Procurement Notes

Verify the specific suffix (e.g., R) against official datasheets as it dictates packaging and compliance status. Confirm RoHS non-compliance if required by your assembly process. Check manufacturer PCNs for potential changes in manufacturing location or materials before finalizing procurement plans.

Selection Notes

Select this component when a stud-mount configuration is necessary for thermal management in high-current environments. Ensure the circuit design accommodates the 125 V reverse voltage limit and utilizes appropriate mounting hardware for the DO-203AA case style. Validate that the 35 ns recovery time meets the specific frequency requirements of the application.

Part Context

This part belongs to the 1N58xx series of fast recovery rectifiers manufactured by Microchip Technology. These devices are engineered for robust performance in demanding power electronics applications. The series offers various voltage ratings while maintaining consistent fast recovery characteristics and high surge capabilities across different package options.

Replacement Considerations

Consult official substitution lists for equivalent parts from Microchip or other manufacturers. Verify that any replacement matches the 125 V rating, 20 A current capacity, and stud mount form factor.