AR1PDHM3/84A

Overview

The AR1PDHM3/84A is a surface-mount avalanche rectifier diode from Vishay, housed in the DO-220AA (SMP) package. It features a maximum repetitive peak reverse voltage of 200 V and an average forward current rating of 1 A. The device exhibits a maximum forward voltage of 1.15 V at specified conditions and a peak non-repetitive forward surge current capability of 30 A. Operating junction temperatures range from -55°C to +175°C. The component is qualified under the AEC-Q101 automotive standard, ensuring reliability for demanding electronic applications.

Feature Summary

• Engineered with avalanche ruggedness to withstand unclamped inductive switching events
• Automotive grade qualification compliant with AEC-Q101 standards
• Utilizes low-profile DO-220AA surface mount packaging for space-constrained designs

Applications

• Automotive electronics requiring avalanche-rated protection
• Inductive load switching circuits
• General-purpose rectification in harsh environments

Procurement Notes

Verify the specific suffix 'M3' confirms lead-free composition and halogen-free status as per Vishay's RoHS compliance definitions. Confirm the '84A' suffix matches the required tape-and-reel quantity or cut-tape format for your assembly line. Ensure the DO-220AA footprint aligns with your PCB design guidelines. Cross-reference the AEC-Q101 certification requirements against your specific vehicle system specifications before finalizing procurement.

Selection Notes

Select this component when circuit designs require diodes capable of handling avalanche energy without failure. The 200 V rating suits medium-voltage DC applications. The 1 A current rating defines the continuous conduction limits. Consider the 175°C maximum junction temperature for high-thermal-stress environments. Compare against standard rectifiers if avalanche capability is not required to optimize cost.

Part Context

This part belongs to Vishay's AR1PD series of avalanche rectifiers. These devices are designed specifically for applications where diodes may experience transient overvoltage conditions that exceed their reverse breakdown voltage. The series offers robust performance in automotive and industrial sectors where reliability under stress is critical.

Replacement Considerations

Direct substitutes must match the 200 V reverse voltage, 1 A current, and DO-220AA package. Verify avalanche rating equivalence. Check pinout compatibility. Ensure thermal characteristics meet or exceed the original specifications.