AS4PKHM3/87A

Description：DIODE AVALANCHE 800V 2.4A TO277A
Series：eSMP®
Mfr：Vishay General Semiconductor - Diodes Division
Package：Tape & Reel (TR)

SKU:5b415f65cb17 Category: Single Diodes Brand: Vishay General Semiconductor - Diodes Division

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Product introduction

Product Detailed Parameters

Description：DIODE AVALANCHE 800V 2.4A TO277A
Series：eSMP®
Mfr：Vishay General Semiconductor - Diodes Division
Package：Tape & Reel (TR)
Technology：Avalanche
Voltage - DC Reverse (Vr) (Max)：800 V
Current - Average Rectified (Io)：2.4A
Voltage - Forward (Vf) (Max) @ If：962 mV @ 2 A
Speed：Standard Recovery >500ns, > 200mA (Io)
Reverse Recovery Time (trr)：1.8 µs
Current - Reverse Leakage @ Vr：10 µA @ 800 V
Capacitance @ Vr, F：60pF @ 4V, 1MHz
Mounting Type：Surface Mount
Package / Case：TO-277, 3-PowerDFN
Supplier Device Package：TO-277A (SMPC)
Operating Temperature - Junction：-55°C ~ 175°C
Grade：-
Qualification：-

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AS4PKHM3/87A

Overview

The AS4PKHM3/87A is a single standard recovery rectifier manufactured by Vishay Semiconductors. It features an 800 V reverse voltage rating and supports a 4 A average forward current. The device utilizes the TO-277A-3 (SMPC) surface-mount package. Key electrical parameters include a maximum forward voltage of 920 mV, a peak non-repetitive surge current capability of 100 A, and a low reverse leakage current of 350 nA. The component exhibits a recovery time of 1.8 µs and operates within a junction temperature range of -55°C to +175°C.

Feature Summary

High-voltage blocking capability suitable for demanding power conversion environments
Robust thermal performance with extended operating temperature limits up to 175°C
Automotive-grade reliability certified under AEC-Q101 standards

Applications

Automotive power supply circuits requiring high voltage isolation
Industrial DC-DC converter topologies
General-purpose rectification in high-voltage AC-to-DC systems

Procurement Notes

Verify the specific suffix designation against official Vishay documentation to confirm packaging configuration. Ensure that the ordered variant matches the required tape-and-reel specifications for automated assembly processes. Cross-reference the manufacturer part number with the latest datasheet revision to validate compliance with current environmental directives such as RoHS and REACH requirements before finalizing procurement.

Selection Notes

Select this component when designing circuits necessitating high reverse voltage withstand alongside moderate current handling capabilities. The TO-277A-3 package offers a compact footprint suitable for space-constrained printed circuit board layouts. Consider the 1.8 µs recovery time when evaluating switching frequency limitations in hard-switching applications compared to faster recovery alternatives.

Part Context

This device belongs to the AS4P series of standard recovery rectifiers from Vishay Semiconductors. The series is engineered for general-purpose rectification tasks where high voltage ratings are critical. The SMPC package provides efficient heat dissipation characteristics while maintaining a small outline profile compatible with modern surface-mount technology assembly lines.