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AS3PK-M3/87A
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Product Detailed Parameters
- Description：DIODE AVALANCHE 800V 2.1A 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)：2.1A
- Voltage - Forward (Vf) (Max) @ If：920 mV @ 1.5 A
- Speed：Standard Recovery >500ns, > 200mA (Io)
- Reverse Recovery Time (trr)：1.2 µs
- Current - Reverse Leakage @ Vr：10 µA @ 800 V
- Capacitance @ Vr, F：37pF @ 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 AS3PK-M3/87A is a standard recovery rectifier manufactured by Vishay Semiconductors. It features a maximum average forward rectified current of 3 A and a repetitive peak reverse voltage of 800 V. The device utilizes an avalanche rugged design suitable for high-voltage switching applications. It is housed in a surface-mount TO-277A-3 package, also known as the eSMP form factor. The component operates within a junction temperature range of -55°C to +150°C and complies with RoHS directives.
Feature Summary
- Standard recovery rectifier technology optimized for general-purpose power conversion
- Avalanche-rated construction providing enhanced ruggedness against transient voltage events
- Surface-mount TO-277A-3 (eSMP) package designed for automated assembly processes
Applications
- High-voltage DC-DC converter circuits
- Industrial power supply rectification stages
- General-purpose freewheeling diode applications in switched-mode power supplies
Procurement Notes
Verify the specific suffix /87A corresponds to the reel packaging configuration required for your production line. Confirm that the 800V rating aligns with your circuit's peak inverse voltage requirements. Ensure compatibility with the TO-277A-3 footprint during PCB layout finalization. Cross-reference the datasheet for thermal derating curves relevant to your operating environment.
Selection Notes
Select this component when a 3 A current capacity and 800 V blocking voltage are required in a compact surface-mount format. The standard recovery characteristics make it suitable for lower-frequency switching applications compared to fast-recovery alternatives. Consider the avalanche capability if the application involves inductive load switching without external snubbers.
Part Context
This part belongs to the AS3P series of surface-mount rectifiers from Vishay. The series provides various voltage ratings within the same TO-277A-3 package family, allowing designers to maintain consistent board layouts across different voltage levels. The eSMP branding indicates a specific lead frame and molding compound formulation optimized for reliability.
Replacement Considerations
Direct substitutes include other Vishay parts within the AS3P series with matching current ratings but different voltage specifications, such as AS3PH or AS3PJ, provided the voltage headroom is sufficient. Verify pinout compatibility with the TO-277A-3 package before substitution.
