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AR4PKHM3/87A
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Product Detailed Parameters
- Description：DIODE AVALANCHE 800V 1.8A 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)：1.8A
- Voltage - Forward (Vf) (Max) @ If：1.9 V @ 4 A
- Speed：Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr)：120 ns
- Current - Reverse Leakage @ Vr：10 µA @ 800 V
- Capacitance @ Vr, F：55pF @ 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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Overview
The AR4PKHM3/87A is a fast recovery rectifier from Vishay, housed in an SMPC (TO-277A-3) package. It features a dual common cathode configuration with a maximum repetitive reverse voltage of 600 V and an average forward current of 4 A per diode. The device exhibits a typical forward voltage of 1.02 V at rated current and a peak non-repetitive surge current capability of 65 A. Reverse leakage current is specified at 600 nA, with a maximum reverse recovery time of 110 ns. Operating temperatures range from -55 °C to +175 °C.
Feature Summary
- Fast recovery performance optimized for high-frequency switching applications
- AEC-Q101 qualified for automotive reliability standards
- Plastic encapsulation designed for surface mount integration
Applications
- Automotive power supply circuits
- High-frequency DC-DC converters
- Freewheeling diode implementations
Procurement Notes
Verify the specific suffix against official documentation to confirm packaging and tape specifications. Ensure the component meets required automotive qualification standards if deployed in vehicle systems. Cross-reference pinout assignments with the manufacturer's datasheet prior to PCB layout finalization.
Selection Notes
Select this component for designs requiring robust avalanche ruggedness and fast switching speeds within a compact surface mount footprint. Evaluate thermal management requirements based on the specified junction temperature limits and package thermal resistance characteristics.
Part Context
This part belongs to Vishay's eSMP series of surface mount rectifiers. It utilizes passivated die technology to enhance reliability and withstand mechanical stress during assembly and operation.
Replacement Considerations
Consult official substitution lists for verified equivalents. Generic replacements may not match the specific avalanche rating or reverse recovery characteristics.
