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AR4PKHM3/86A
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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 AR4PKHM3/86A is an 800 V, 1.8 A surface-mount avalanche rectifier diode from Vishay General Semiconductor - Diodes Division. It utilizes FRED Pt® technology and is housed in a TO-277A (SMPC) package. The device 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 ruggedness for robust operation under transient conditions
- Utilizes FRED Pt® technology for optimized switching performance
- Qualified to AEC-Q101 standards for automotive reliability requirements
Applications
- Automotive power supply circuits
- Inductive load switching protection
- Flyback diode applications in automotive electronics
Procurement Notes
Verify the specific suffix against official datasheets to confirm exact electrical characteristics and packaging options. Ensure compatibility with AEC-Q101 requirements if used in automotive designs. Confirm thermal management strategies align with the specified junction temperature limits during procurement planning.
Selection Notes
Select this component when high reverse voltage blocking capability combined with avalanche energy rating is required in a compact surface-mount form factor. The TO-277A package offers a balance between current handling and board space efficiency for modern electronic assemblies.
Part Context
This part belongs to Vishay's FRED Pt® family of fast recovery diodes, adapted for avalanche capabilities. It serves as a specialized solution for protecting circuits from voltage spikes generated by inductive loads, particularly in environments demanding high reliability and strict automotive qualification standards.
Replacement Considerations
Consult official substitution lists for equivalent avalanche-rated diodes in the TO-277A package. Verify that any alternative meets the same 800 V reverse voltage and 1.8 A forward current specifications while maintaining compatible thermal and mechanical properties.
