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A197P
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Product Detailed Parameters
- Description：DIODE STANDARD 1000V 250A
- Series：-
- Mfr：Powerex Inc.
- Package：Bulk
- Technology：Standard
- Voltage - DC Reverse (Vr) (Max)：1000 V
- Current - Average Rectified (Io)：250A
- Voltage - Forward (Vf) (Max) @ If：-
- Speed：Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr)：-
- Current - Reverse Leakage @ Vr：-
- Capacitance @ Vr, F：-
- Mounting Type：Chassis, Stud Mount
- Package / Case：DO-205AB, DO-9, Stud
- Supplier Device Package：-
- Operating Temperature - Junction：-40°C ~ 150°C
- Grade：-
- Qualification：-
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Overview
The Powerex Inc. A197P is a general-purpose silicon rectifier diode designed for high-current applications. It features a maximum DC reverse voltage (Vr) of 1000 V and an average rectified current (Io) of 250 A. The device utilizes standard technology with a fast recovery time of less than or equal to 500 ns at greater than 200 mA forward current. It is housed in the DO-205AB (DO-9) package, which supports clamp mounting. The component operates within a junction temperature range of -40°C to +150°C and is RoHS compliant.
Feature Summary
- Fast recovery characteristics suitable for high-frequency switching applications
- High surge current capability for robust performance under transient loads
- Standard silicon construction ensuring reliable general-purpose rectification
Applications
- Industrial power supplies
- Motor drive circuits
- Inverter systems
Procurement Notes
Verify the specific datasheet version to confirm exact thermal resistance values and mechanical dimensions before integration. Ensure the DO-205AB package compatibility matches the intended heatsink or board layout requirements. Confirm RoHS compliance status if operating in regulated environments requiring strict material restrictions. Cross-reference pinout configurations with existing circuit designs to prevent installation errors during assembly processes.
Selection Notes
Select this component when a 1000 V blocking voltage and 250 A continuous current rating are required. The fast recovery speed makes it appropriate for applications where reverse recovery charge impacts efficiency. Consider the DO-205AB package size constraints and thermal management needs for high-power dissipation scenarios compared to slower standard recovery alternatives.
Part Context
The A197P belongs to Powerex's line of high-power discrete semiconductor devices. It is part of a family of rectifiers engineered for demanding industrial and traction environments. The DO-205AB package provides a standardized form factor for easy integration into existing high-current modules and chassis-mounted assemblies used in heavy-duty electrical systems.
Replacement Considerations
Check for direct substitutes with identical Vr, Io, and package dimensions. Verify that alternative fast recovery times meet the original design specifications. Ensure thermal characteristics match to maintain system reliability without redesigning cooling infrastructure.
