AR1PDHM3/85A

Overview

The AR1PDHM3/85A is a surface-mount avalanche rectifier from Vishay, housed in an SMP (DO-220AA) package. It features a maximum DC reverse voltage of 200 V and an average forward current rating of 1 A. The device exhibits a maximum forward voltage of 1.25 V at rated current and a low reverse leakage current of 1 µA. It supports a maximum surge current of 30 A and operates within a junction temperature range of -55 °C to +175 °C. This component is qualified under the AEC-Q100 standard for automotive applications.

Feature Summary

• Engineered with avalanche capability for robust operation in inductive switching environments
• Automotive-grade qualification ensures reliability and consistency for demanding electronic systems
• Utilizes a compact SMP (DO-220AA) surface-mount footprint for efficient PCB layout

Applications

• Automotive power supply circuits requiring avalanche ruggedness
• Inductive load protection in vehicle electronics
• General-purpose rectification in high-reliability industrial equipment

Procurement Notes

Verify the specific suffix designation against official Vishay documentation to confirm exact electrical tolerances and packaging configurations. Ensure that the procurement channel provides valid traceability records and confirms compliance with the AEC-Q100 automotive qualification standards required for your application environment.

Selection Notes

Select this component when a 200 V reverse voltage rating and 1 A continuous current capacity are required in a small surface-mount form factor. Consider its avalanche energy rating if the circuit involves significant inductive kickback or transient voltage events. Verify thermal management requirements based on the specified operating temperature range and forward voltage characteristics.

Part Context

This part belongs to the AR1P series of avalanche rectifiers manufactured by Vishay General Semiconductor. The series is designed to provide reliable performance in applications where standard rectifiers might fail due to reverse breakdown conditions. The DO-220AA package offers a balance between current handling capability and space efficiency for modern electronic assemblies.

Replacement Considerations

Cross-reference with AR1PDHM3/84A for similar specifications. Confirm pinout compatibility and electrical parameter alignment before substitution.