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AU3PGHM3/87A
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Product Detailed Parameters
- Description：DIODE AVALANCHE 400V 1.7A TO277A
- Series：eSMP®
- Mfr：Vishay General Semiconductor - Diodes Division
- Package：Tape & Reel (TR)
- Technology：Avalanche
- Voltage - DC Reverse (Vr) (Max)：400 V
- Current - Average Rectified (Io)：1.7A
- Voltage - Forward (Vf) (Max) @ If：1.9 V @ 3 A
- Speed：Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr)：75 ns
- Current - Reverse Leakage @ Vr：10 µA @ 400 V
- Capacitance @ Vr, F：72pF @ 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 AU3PGHM3/87A is a surface-mount avalanche diode manufactured by Vishay General Semiconductor - Diodes Division. It features a maximum reverse voltage of 400 V and a peak pulse current rating of 1.7 A. The component is housed in a TO-277A (SMPC) package, designed for robust transient protection applications requiring high voltage withstand capabilities in compact form factors.
Feature Summary
- Surface mount construction in TO-277A package
- High voltage avalanche technology rated at 400 V
- Peak pulse current handling capability of 1.7 A
Applications
- General circuit protection
- Transient voltage suppression in surface mount designs
Procurement Notes
Verify the specific datasheet version for the AU3PGHM3/87A to confirm exact electrical tolerances and thermal characteristics. Ensure compatibility with TO-277A footprints during PCB layout. Confirm RoHS compliance status if required by project specifications. Cross-reference pinout diagrams to prevent installation errors in automated assembly processes.
Selection Notes
Select this component when a 400 V reverse voltage rating is necessary for avalanche protection. The TO-277A package offers a balance between power dissipation and board space efficiency. Consider the 1.7 A peak pulse current limit when designing for expected transient energy levels. Verify that the application environment supports the operating temperature range specified in the official documentation.
Part Context
This part belongs to Vishay's general-purpose avalanche diode lineup. These components are engineered for reliable performance in protecting sensitive electronics from voltage spikes. The TO-277A package is commonly used in industrial and consumer electronics where space constraints require efficient surface-mount solutions for overvoltage protection tasks.
Replacement Considerations
Check for direct substitutes within the Vishay TO-277A series that match the 400 V rating. Ensure any replacement maintains identical pin configuration and thermal resistance characteristics. Verify that alternative parts meet the same peak pulse current requirements for equivalent protection levels.
