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Product Detailed Parameters
- Description:DIODE AVALANCHE 1KV 1.8A TO277A
- Series:eSMP®
- Mfr:Vishay General Semiconductor - Diodes Division
- Package:Tape & Reel (TR)
- Technology:Avalanche
- Voltage - DC Reverse (Vr) (Max):1000 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 @ 1000 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 AR4PMHM3/87A is a fast switching avalanche surface-mount rectifier manufactured by Vishay General Semiconductor. It features a single diode configuration housed in an SMPC (TO-277A) package. The device supports a maximum repetitive peak reverse voltage of 1000 V and a maximum DC forward current of 4.0 A. Key electrical parameters include a typical instantaneous forward voltage of 1.66 V at 4.0 A, a maximum reverse recovery time of 120 ns, and a non-repetitive avalanche energy rating of 20 mJ. It operates within a junction temperature range of -55 °C to +175 °C.
Feature Summary
- Glass passivated pellet chip junction for enhanced reliability
- Controlled avalanche characteristics with specified energy ratings
- Fast reverse recovery time suitable for high-speed applications
- Halogen-free, RoHS-compliant construction with AEC-Q101 qualification
Applications
- Lighting systems
- Fast switching rectification of power supplies
- Inverters and converters
- Freewheeling diodes for consumer, automotive, and telecommunication equipment
Procurement Notes
Verify the specific ordering code suffix against official documentation to confirm packaging quantity and revision status. Confirm that the HM3 designation aligns with required halogen-free and AEC-Q101 automotive qualification standards. Ensure compatibility with JESD 201 class 2 whisker test requirements before finalizing procurement specifications.
Selection Notes
Select this component when a 1000 V rated single diode with avalanche capability is required in a low-profile surface-mount form factor. The SMPC package provides a compact footprint suitable for automated placement. Consider the thermal resistance values and derating curves if operating near maximum current limits or elevated ambient temperatures.
Part Context
This part belongs to the eSMP series of fast switching avalanche surface-mount rectifiers. It shares the SMPC (TO-277A) mechanical outline with other devices in the family but differs in voltage ratings and recovery times. The HM3 suffix indicates compliance with environmental directives and automotive reliability standards distinct from commercial grade variants.
Replacement Considerations
AR4PKHM3/87A
FAQ
What is the maximum non-repetitive avalanche energy rating?
The maximum non-repetitive avalanche energy is rated at 20 mJ when the avalanche current is 2.5 A maximum.
Does the device meet automotive reliability standards?
Yes, the AR4PMHM3 variant is qualified according to the AEC-Q101 standard for automotive applications.
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