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AR1PD-M3/85A
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Product Detailed Parameters
- Description：DIODE AVALANCHE 200V 1A DO220AA
- Series：eSMP®
- Mfr：Vishay General Semiconductor - Diodes Division
- Package：Tape & Reel (TR)
- Technology：Avalanche
- Voltage - DC Reverse (Vr) (Max)：200 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 @ 200 V
- Capacitance @ Vr, F：12.5pF @ 4V, 1MHz
- Mounting Type：Surface Mount
- Package / Case：DO-220AA
- Supplier Device Package：DO-220AA (SMP)
- Operating Temperature - Junction：-55°C ~ 175°C
- Grade：-
- Qualification：-
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Overview
The AR1PD-M3/85A is a surface-mount avalanche rectifier from Vishay General Semiconductor, housed in the DO-220AA (SMP) package. It features a 200 V DC reverse voltage rating and a 1 A average forward current capability. The device exhibits a maximum forward voltage of 1.25 V at rated current and a reverse recovery time of 140 ns. It supports a peak repetitive avalanche energy rating and operates within a junction temperature range of -55°C to +175°C.
Feature Summary
- Engineered with avalanche-rated construction for robust operation under transient overvoltage conditions
- Utilizes fast recovery technology to minimize switching losses and electromagnetic interference
- Designed for high reliability in compact surface-mount applications
Applications
- High-frequency switching power supplies requiring avalanche ruggedness
- Flyback converter freewheeling diodes in isolated topologies
- Inductive load protection circuits susceptible to voltage spikes
Procurement Notes
Verify the specific avalanche energy rating and test conditions against the official Vishay datasheet before integration. Confirm that the DO-220AA footprint matches the target PCB design. Ensure thermal management strategies account for the specified junction temperature limits during continuous operation.
Selection Notes
Select this component when standard rectifiers lack sufficient avalanche withstand capability. The 200 V rating suits low-voltage secondary-side applications. Consider the 140 ns recovery time for efficiency requirements. Compare thermal resistance values against alternative packages if space constraints allow.
Part Context
This part belongs to Vishay's AR series of surface-mount fast avalanche rectifiers. These devices are designed to handle repetitive avalanche events without degradation, making them suitable for snubber-less flyback converters. The SMP package offers a compact solution for modern electronics manufacturing.
Replacement Considerations
Cross-reference with AR1PJ-M3/85A for potential pin-compatible alternatives within the same manufacturer family. Verify electrical parameters match exactly before substitution.
