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AR1FGHM3/H
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Product Detailed Parameters
- Description：DIODE AVALANCHE 400V 1A DO219AB
- Series：-
- Mfr：Vishay General Semiconductor - Diodes Division
- Package：Tape & Reel (TR),Cut Tape (CT)
- Technology：Avalanche
- Voltage - DC Reverse (Vr) (Max)：400 V
- Current - Average Rectified (Io)：1A
- Voltage - Forward (Vf) (Max) @ If：1.25 V @ 1 A
- Speed：Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr)：140 ns
- Current - Reverse Leakage @ Vr：1 µA @ 400 V
- Capacitance @ Vr, F：12.6pF @ 4V, 1MHz
- Mounting Type：Surface Mount
- Package / Case：DO-219AB
- Supplier Device Package：DO-219AB (SMF)
- Operating Temperature - Junction：-55°C ~ 175°C
- Grade：Automotive
- Qualification：AEC-Q101
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Overview
The AR1FGHM3/H is a fast recovery avalanche rectifier manufactured by Vishay Semiconductors. It features a single diode configuration in a DO-219AB (SMF) surface-mount package. Key electrical parameters include a maximum repetitive peak reverse voltage of 400 V and an average forward rectified current of 1 A. The device exhibits a typical forward voltage of 1.25 V at rated current, with a maximum surge current rating of 30 A. Reverse leakage current is specified at 1 µA, and the reverse recovery time is 140 ns.
Feature Summary
- Incorporates avalanche-rated technology for robust operation under transient overvoltage conditions.
- Utilizes fast recovery characteristics to minimize switching losses in high-frequency applications.
- Features a compact surface-mount SMF (DO-219AB) package designed for automated assembly.
Applications
- High-frequency power supply circuits
- Freewheeling diode applications in DC-DC converters
- General-purpose rectification in industrial electronics
Procurement Notes
Verify the specific suffix codes against official Vishay documentation to confirm exact packaging and tape-and-reel specifications. Ensure that the ordering information matches the required automotive or industrial qualification standards if applicable. Cross-reference the manufacturer part number with authorized distributor catalogs to confirm current production status and compliance with RoHS directives before finalizing procurement plans.
Selection Notes
Select this component when a 1 A fast recovery diode with avalanche capability is required in a small outline package. Compare the 140 ns reverse recovery time against circuit switching frequencies to ensure adequate performance. Evaluate the 400 V reverse voltage rating against peak inverse voltage spikes in the target application to maintain sufficient safety margins during normal and transient operating conditions.
Part Context
This component belongs to Vishay's AR1F series of fast recovery rectifiers. The series is engineered for general-purpose rectification where moderate speed and avalanche ruggedness are necessary. The DO-219AB package provides a balance between thermal dissipation capabilities and board space efficiency for modern electronic designs.
Replacement Considerations
Consult official Vishay substitution guides for verified equivalents. Do not assume functional compatibility with other 1 A 400 V rectifiers without verifying reverse recovery time and avalanche ratings.
