AR3PKHM3_A/H

Overview

The AR3PKHM3_A/H is a single fast recovery avalanche rectifier manufactured by Vishay Semiconductors. It features an 800 V repetitive reverse voltage rating and supports a continuous forward current of 3 A. The device utilizes the SMPC (TO-277A-3) surface-mount package. Key electrical characteristics include a maximum forward voltage of 1.04 V, a peak non-repetitive surge current capability of 50 A, and a low leakage current of 330 nA. The component is qualified to AEC-Q101 standards for automotive applications and operates within a junction temperature range of -55 °C to +175 °C.

Feature Summary

• Engineered with avalanche-rated ruggedness for robust operation in high-stress environments
• Designed for high-speed switching applications utilizing fast recovery technology
• Qualified for automotive electronics compliance under AEC-Q101 standards

Applications

• Automotive power supply circuits requiring high reliability
• High-frequency switching power converters
• Fast recovery freewheeling diode implementations

Procurement Notes

Verify the specific suffix codes against official Vishay documentation to ensure correct packaging and qualification levels. Confirm that the AEC-Q101 automotive qualification aligns with your project requirements. Cross-reference the TO-277A-3 footprint dimensions with your PCB layout guidelines prior to finalizing procurement orders.

Selection Notes

Select this component when an 800 V blocking voltage is required alongside a 3 A continuous current capacity in a compact surface-mount form factor. The avalanche rating provides tolerance for transient voltage spikes common in inductive loads. Ensure the thermal management design accommodates the specified operating temperature range up to 175 °C for optimal performance.

Part Context

This part belongs to the AR3P series of fast recovery rectifiers from Vishay. The series offers various voltage ratings including 400 V and 600 V options within the same physical package family. These devices are designed to replace bulkier through-hole alternatives while maintaining high reliability in demanding electronic systems.

Replacement Considerations

Compatible substitutes within the same series include the AR3PGHM3_A/H (400 V) and AR3PJHM3_A/H (600 V), provided the system voltage constraints allow for lower blocking voltages. Verify pinout compatibility and thermal characteristics before substituting.