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AR4PMHM3_A/H
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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：Automotive
- Qualification：AEC-Q101
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Overview
The AR4PMHM3_A/H is a fast switching avalanche surface-mount rectifier manufactured by Vishay General Semiconductor. It features a glass passivated pellet chip junction and operates in the SMPC (TO-277A) package. The device supports a maximum repetitive peak reverse voltage of 1000 V and an average forward current of 4.0 A. Key electrical parameters include a typical reverse recovery time of 79 ns, a maximum instantaneous forward voltage of 1.6 V at 4.0 A, and a non-repetitive avalanche energy rating of 20 mJ. It meets MSL level 1 requirements and is qualified under AEC-Q101 standards.
Feature Summary
- Features controlled avalanche characteristics for robust performance under transient conditions
- Utilizes a glass passivated pellet chip junction to ensure low leakage current
- Designed with a very low profile to facilitate automated placement processes
- Complies with halogen-free and RoHS-compliant material categorization standards
Applications
- Fast switching rectification in power supplies
- Freewheeling diodes for inverters and converters
- Lighting applications
- Automotive electronic systems
- Telecommunication equipment
Procurement Notes
Verify that the ordering code includes the HM3 suffix to confirm AEC-Q101 automotive qualification. Ensure the base part number matches the specific voltage variant required for the circuit design. Confirm compliance with JESD 201 class 2 whisker test requirements when sourcing materials. Validate that the component meets the specified thermal resistance values for the intended mounting configuration on FR4 PCBs.
Selection Notes
Select this component for high-frequency applications requiring fast reverse recovery times. The SMPC package provides a compact footprint suitable for space-constrained designs. Consider the 1000 V reverse voltage rating for high-voltage DC circuits. Evaluate the 4.0 A forward current capability against peak load requirements. Verify thermal management strategies align with the specified junction-to-ambient thermal resistance limits.
Part Context
This device belongs to the eSMP series of fast switching avalanche rectifiers from Vishay. It shares the SMPC package form factor with other variants in the family but offers specific voltage and current ratings tailored for demanding power conversion tasks. The HM3 designation indicates automotive-grade qualification, distinguishing it from commercial grade counterparts within the same product line.
Replacement Considerations
AR4PKHM3_A/H
FAQ
What is the maximum non-repetitive avalanche energy rating?
The device has a non-repetitive avalanche energy rating of 20 mJ at a junction temperature of 25 °C.
Does the component meet automotive reliability standards?
Yes, the AR4PMHM3_A/H is qualified according to the AEC-Q101 standard for automotive applications.
