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AU1FDHM3/H
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Product Detailed Parameters
- Description：DIODE AVALANCHE 200V 1A DO219AB
- Series：eSMP®
- Mfr：Vishay
- Package：Tape & Reel (TR)
- Technology：Avalanche
- Voltage - DC Reverse (Vr) (Max)：200 V
- Current - Average Rectified (Io)：1A
- Voltage - Forward (Vf) (Max) @ If：1.5 V @ 1 A
- Speed：Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr)：75 ns
- Current - Reverse Leakage @ Vr：1 µA @ 200 V
- Capacitance @ Vr, F：12.2pF @ 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 AU1FDHM3/H is a single ultra-fast recovery rectifier manufactured by Vishay Semiconductors. It features a 200 V repetitive reverse voltage rating and supports a continuous forward current of 1 A. The device utilizes the SMF (DO-219AB) surface-mount package. Key electrical characteristics include a maximum forward voltage of 1.5 V, a peak non-repetitive surge current capability of 30 A, and a low reverse leakage current of 1 µA. The component offers a fast recovery time of 75 ns and is designed for operation within a junction temperature range of -55 °C to +175 °C.
Feature Summary
- Ultra-fast recovery performance with 75 ns switching speed
- Avalanche rated for robust energy handling in inductive loads
- High thermal stability supporting operation up to 175 °C
Applications
- High-frequency power supply circuits
- Free-wheeling diode applications in DC-DC converters
- Polarity protection in electronic systems
Procurement Notes
Verify the specific suffix against official Vishay documentation to confirm exact electrical tolerances and marking codes. Ensure the ordering part number matches the required avalanche rating and package variant. Cross-reference datasheet revisions to confirm compliance with current environmental standards before finalizing procurement specifications.
Selection Notes
Select this component for designs requiring rapid switching speeds and high reliability under inductive load conditions. The avalanche capability allows for safe energy dissipation during transient events. Compare the 1 A current rating and 200 V blocking voltage against circuit requirements to ensure adequate headroom for thermal and electrical stresses.
Part Context
This device belongs to Vishay’s AU1FD series of ultra-fast recovery rectifiers. It is engineered for compact surface-mount implementations using the SMF package. The series targets efficiency improvements in modern power conversion topologies where low reverse recovery charge is critical for minimizing switching losses.
Replacement Considerations
Official substitutes include AU1FD-M3/H and AU1FDHM3_A/H. Verify that replacement parts maintain identical avalanche ratings, recovery times, and package dimensions to ensure mechanical and electrical compatibility without redesigning the PCB layout.
