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AR4PK-M3/86A
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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 AR4PK-M3/86A is an avalanche-rated single diode from Vishay, housed in a TO-277A (SMPC) surface-mount package. It features a maximum DC reverse voltage of 800 V and an average rectified current of 1.8 A. The device exhibits a forward voltage of approximately 2.1 V at full load and maintains a low reverse leakage current of 270 nA. Designed for high-reliability applications, it operates within a junction temperature range of -55°C to +175°C and supports a maximum surge current of 30 A.
Feature Summary
- Incorporates avalanche energy rating for enhanced robustness against transient voltage events
- Utilizes eSMP® TO-277A surface-mount packaging for compact board integration
- Provides stable switching characteristics with optimized thermal performance
Applications
- High-voltage power supply circuits requiring avalanche capability
- Inductive load protection in automotive or industrial systems
- Snubber circuits for fast-switching power electronics
Procurement Notes
Verify the specific suffix /86A corresponds to the required tape-and-reel quantity configuration during sourcing. Confirm that the 800V avalanche rating aligns with the system's transient voltage specifications. Ensure the TO-277A footprint matches the target PCB layout constraints before finalizing procurement orders.
Selection Notes
Select this component when an 800V blocking voltage and 1.8A continuous current are required in a small surface-mount form factor. The avalanche rating makes it suitable for environments with significant inductive kickback. Compare thermal resistance values against alternative packages if heat dissipation is a primary design constraint.
Part Context
This part belongs to Vishay’s eSMP® series of surface-mount rectifiers. It shares the physical TO-277A housing with other variants like AU2PK and SS3P6L but differs in electrical ratings and technology type. The avalanche specification distinguishes it from standard recovery diodes in the same package family.
Replacement Considerations
Direct substitutes must match the 800V avalanche rating and TO-277A package. Verify equivalent current handling and thermal characteristics. Cross-reference Vishay datasheets for pin-compatible alternatives within the AR or AU series.
