AS1PK-M3/85A

Overview

The AS1PK-M3/85A is an avalanche-rated standard recovery rectifier from Vishay’s eSMP series. It features a maximum repetitive peak reverse voltage of 800 V and an average forward rectified current of 1.5 A. The device utilizes a DO-220AA (SMP) surface-mount package. Key electrical characteristics include a reverse recovery time of 1.5 µs and a maximum reverse leakage current of 1 µA at 800 V. It operates within a junction temperature range of -55°C to +175°C.

Feature Summary

• Incorporates avalanche capability for robust operation in inductive switching environments
• Utilizes planar isolation technology for enhanced reliability
• Features low leakage current characteristics

Applications

• High-voltage general-purpose rectification
• Inductive load protection circuits
• Free-wheeling diode applications

Procurement Notes

Verify the specific suffix against official Vishay documentation to confirm avalanche rating and package type. Ensure compatibility with RoHS directives if required by the design specification. Cross-reference the manufacturer part number with authorized distributor databases to confirm active status and availability before finalizing procurement plans.

Selection Notes

Select this component when high-voltage blocking capability combined with avalanche ruggedness is required in a compact surface-mount form factor. The 800 V rating suits applications exceeding standard 600 V limits. Consider the 1.5 A current rating and 1.5 µs recovery time for appropriate thermal and speed requirements in power conversion designs.

Part Context

This device belongs to the eSMP series, which offers surface-mount alternatives to traditional through-hole packages. The eSMP line provides improved mounting stability and reduced footprint compared to legacy equivalents. Vishay integrates planar passivation technology across this series to ensure consistent performance and long-term reliability in demanding electronic assemblies.

Replacement Considerations

Consult official substitution guides for equivalent avalanche-rated SMP diodes. Verify that any alternative maintains the 800 V reverse voltage and 1.5 A current ratings. Confirm pinout compatibility and thermal characteristics match the original design constraints.