AR1PG-M3/84A

Overview

The AR1PG-M3/84A is a surface-mount avalanche-rated silicon rectifier diode manufactured by Vishay General Semiconductor. It utilizes the DO-220AA (SMP) package and supports an average forward current of 1 A with a maximum repetitive peak reverse voltage of 400 V. The device features a low forward voltage drop of 1.6 V at rated current and a maximum non-repetitive surge current capability of 30 A. It operates within a junction temperature range of -55 °C to +175 °C, ensuring reliability in high-stress environments.

Feature Summary

• Incorporates avalanche ruggedness for enhanced circuit protection against transient energy events
• Utilizes planar die technology for robust performance under thermal stress
• Features a compact surface-mount form factor suitable for automated assembly processes

Applications

• High-voltage switching power supplies requiring avalanche tolerance
• Flyback diodes in inductive load circuits subject to voltage spikes
• General-purpose rectification in industrial control systems

Procurement Notes

Verify the specific suffix designation to confirm the avalanche characteristic, as standard variants may lack this feature. Ensure the ordering code matches the required packaging format, such as cut tape or reel. Confirm RoHS compliance status through official documentation before integration into regulated assemblies.

Selection Notes

Select this component when circuit designs demand both high reverse voltage blocking and immunity to avalanche breakdown conditions. Compare the 1 A current rating against peak load requirements to ensure adequate margin. Evaluate the thermal resistance characteristics relative to the PCB layout to maintain safe operating temperatures during continuous operation.

Part Context

This part belongs to Vishay's eSMP series of surface-mount rectifiers designed for space-constrained applications. The series offers various voltage ratings while maintaining consistent mechanical dimensions. The avalanche variant specifically addresses reliability concerns in harsh electrical environments where standard diodes might fail due to unclamped inductive switching.

Replacement Considerations

Substitutes must match the 400 V reverse voltage, 1 A forward current, and DO-220AA footprint. Verify that alternative components also possess avalanche ratings if transient protection is critical. Check for identical pinout configurations to ensure direct compatibility without board modifications.