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Product Detailed Parameters
- Description：DIODE STANDARD 500V 300A
- Series：-
- Mfr：SanRex Corporation
- Package：Tray
- Technology：Standard
- Voltage - DC Reverse (Vr) (Max)：500 V
- Current - Average Rectified (Io)：300A
- Voltage - Forward (Vf) (Max) @ If：1.3 V @ 300 A
- Speed：Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr)：200 ns
- Current - Reverse Leakage @ Vr：300 mA @ 500 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 FRS300BA50 is a high-speed isolated diode module designed for high-power switching applications. It features a repetitive peak reverse voltage of 500 V and a DC reverse voltage of 400 V. The device supports a DC forward current of 300 A at a case temperature of 85°C, with a surge forward current capability of 4000 A. Key electrical characteristics include a maximum reverse recovery time of 200 ns and a typical forward voltage drop of 1.3 V at 300 A. The isolation breakdown voltage is 2500 V RMS.
Feature Summary
- High-speed fast recovery design with low loss and high speed control capabilities
- Isolated mounting base providing electrical separation
- High surge current capability for robust operation under transient conditions
Applications
- Inverter welding power supplies
- Power supplies for telecommunications
- Various switching power supplies
Procurement Notes
Verify the specific part number FRS300BA50 against official Sanrex documentation to ensure correct voltage and current ratings. Confirm that the isolated mounting base requirements match your thermal management and electrical isolation needs. Check datasheet specifications for junction temperature limits and torque values for M6 terminals to ensure proper installation and long-term reliability in high-frequency switching environments.
Selection Notes
Select this component for applications requiring high-speed rectification with electrical isolation. Ensure the operating junction temperature remains within -40 to 150°C. Verify that the thermal impedance from junction to case (0.165 °C/W) is sufficient for your heat sink design. Consider the 2500 V RMS isolation voltage when designing circuits requiring galvanic isolation between primary and secondary sides.
Part Context
The FRS300BA series represents Sanrex's high-speed isolated diode modules. These components are engineered for efficiency in high-frequency power conversion systems. The '50' suffix indicates a 500 V repetitive peak reverse voltage rating. This module integrates multiple diodes into a single isolated package to reduce footprint and improve thermal performance compared to discrete solutions.
Replacement Considerations
Consult official Sanrex documentation for direct cross-references. Ensure any substitute maintains the 500 V reverse voltage, 300 A forward current, and isolated mounting configuration. Verify that the replacement part meets or exceeds the 200 ns reverse recovery time and 2500 V isolation voltage requirements.
