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AR1PGHM3/85A
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Product Detailed Parameters
- Description：DIODE AVALANCHE 400V 1A DO220AA
- Series：eSMP®
- Mfr：Vishay General Semiconductor - Diodes Division
- Package：Tape & Reel (TR)
- 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：12.5pF @ 4V, 1MHz
- Mounting Type：Surface Mount
- Package / Case：DO-220AA
- Supplier Device Package：DO-220AA (SMP)
- Operating Temperature - Junction：-55°C ~ 175°C
- Grade：Automotive
- Qualification：AEC-Q101
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Overview
The AR1PGHM3/85A is a surface-mount avalanche diode from Vishay, housed in the DO-220AA (SMP) package. It features a maximum DC reverse voltage of 400 V and an average rectified forward current of 1 A. The device exhibits a typical forward voltage of 1.6 V at 1 A and a reverse leakage current of 1 µA at 400 V. Designed for robust performance, it supports a junction temperature range from -55°C to 175°C and holds AEC-Q101 automotive qualification.
Feature Summary
- Engineered with avalanche characteristics to withstand repetitive surge currents without degradation
- Utilizes planar chip technology for enhanced reliability under high-stress conditions
- Qualified for automotive applications according to AEC-Q101 standards
Applications
- Protection circuits for inductive loads such as relays and solenoids
- Suppression of voltage spikes in switching power supplies
- Clamping applications in automotive electronic control units
Procurement Notes
Verify the specific suffix HM3/85A against official Vishay documentation to confirm RoHS compliance and lead-free status. Ensure the DO-220AA footprint matches your PCB design constraints. Confirm that the 400V rating aligns with your system's peak inverse voltage requirements before finalizing procurement.
Selection Notes
Select this component when avalanche ruggedness is required rather than standard Zener regulation. The 1A current rating suits moderate power dissipation needs. Consider the DO-220AA package size for space-constrained surface-mount designs requiring automotive-grade reliability and high thermal stability up to 175°C.
Part Context
This part belongs to Vishay’s AR1P series of avalanche diodes designed for transient suppression. The series offers various voltage ratings within the DO-220AA package. These devices are distinct from standard rectifiers or Zener diodes due to their specific avalanche energy handling capabilities and planar construction for improved ruggedness.
Replacement Considerations
Consult Vishay datasheets for direct equivalents within the AR1P family. Verify pinout compatibility and thermal resistance values when substituting. Ensure any alternative maintains the same avalanche energy rating and package dimensions.
