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Product Detailed Parameters
- Description：DIODE STANDARD 1200V 400A
- Series：-
- Mfr：SanRex Corporation
- Package：Tray
- Technology：Standard
- Voltage - DC Reverse (Vr) (Max)：1200 V
- Current - Average Rectified (Io)：400A
- Voltage - Forward (Vf) (Max) @ If：1.8 V @ 400 A
- Speed：Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr)：400 ns
- Current - Reverse Leakage @ Vr：20 mA @ 1200 V
- Capacitance @ Vr, F：-
- Mounting Type：Chassis Mount
- Package / Case：Module
- Supplier Device Package：-
- Operating Temperature - Junction：-40°C ~ 150°C
- Grade：-
- Qualification：-
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Overview
The SanRex FRS400CA120 is a high-speed isolated diode module designed for high-power switching applications. It features a repetitive peak reverse voltage of 1200 V and a DC reverse voltage of 960 V. The module supports a maximum average forward current of 400 A at a case temperature of 78°C, with a surge forward current capability of 4000 A. Electrical characteristics include a typical forward voltage drop of 1.8 V and a maximum reverse recovery time of 400 ns. Thermal impedance from junction to case is rated at 0.1 °C/W.
Feature Summary
- High-speed fast recovery design optimized for low loss and high-frequency control
- Isolated mounting base providing an isolation breakdown voltage of 2500 V AC
- Robust construction featuring high surge current capability
Applications
- Inverter welding power supplies
- Telecommunication power supplies
- Various switching power supply systems
Procurement Notes
Verify the specific part number against official manufacturer documentation to ensure compatibility with system requirements. Confirm that thermal management solutions meet the specified junction-to-case thermal impedance limits. Ensure mounting torque adheres to the recommended range to maintain electrical isolation integrity and mechanical stability during operation.
Selection Notes
Select this component for applications requiring high-speed rectification with significant surge tolerance. The isolated base configuration simplifies heat sinking while maintaining safety standards. Evaluate the operating frequency against the reverse recovery time specifications to ensure efficient performance in the target circuit topology.
Part Context
This component belongs to the FRS series of discrete semiconductor modules manufactured by SanRex Corporation. These modules utilize silicon technology and are engineered for robust performance in demanding power electronics environments. The product line focuses on delivering reliable switching capabilities for industrial and commercial power conversion equipment.
Replacement Considerations
Consult official SanRex documentation for verified substitute part numbers. Do not assume cross-compatibility with other manufacturers' modules without verifying pinout, thermal, and electrical parameter alignment.
