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DFA50BA80
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Product Detailed Parameters
- Description：DIODE MODULE 800V 50A
- Series：-
- Mfr：SanRex Corporation
- Package：Tray
- Structure：Bridge, 3-Phase - SCRs/Diodes
- Number of SCRs, Diodes：1 SCR, 6 Diodes
- Voltage - Off State：800 V
- Current - On State (It (AV)) (Max)：50 A
- Current - On State (It (RMS)) (Max)：-
- Current - Non Rep. Surge 50, 60Hz (Itsm)：730A, 800A
- Operating Temperature：-40°C ~ 150°C (TJ)
- Mounting Type：Chassis Mount
- Package / Case：Module
- Voltage - Gate Trigger (Vgt) (Max)：3 V
- Current - Gate Trigger (Igt) (Max)：70 mA
- Current - Hold (Ih) (Max)：-
- Grade：-
- Qualification：-
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Overview
The SanRex DFA50BA80 is a complex isolated power module integrating six diodes in a three-phase bridge configuration with a thyristor connected to the direct current line. Designed for high-current circuits, it features screw mounting (M5) and electrical isolation between electrode terminals and the mounting base. Key ratings include a repetitive peak reverse voltage of 800 V, a DC output current of 50 A at Tc=117°C, and a surge forward current of 730/800 A. The maximum junction temperature is 150°C, with a thermal impedance (junction-to-case) of 0.25 °C/W and an isolation breakdown voltage of 2500 V RMS.
Feature Summary
- Integrates a three-phase diode bridge and a DC-line thyristor into a single compact unit.
- Provides electrical isolation between electrode terminals and the mounting base for safe parallel installation on shared heatsinks.
- Designed for robust operation in high-current industrial applications.
Applications
- Inverters for AC or DC motor control
- Current stabilized power supplies
- Switching power supplies
Procurement Notes
Verify component authenticity by cross-referencing the manufacturer part number and datasheet specifications. Confirm technical compatibility with system requirements before purchase. Ensure sourcing from authorized distributors to guarantee product integrity and adherence to safety standards.
Selection Notes
Select this module for applications requiring combined rectification and controlled DC output regulation. Evaluate thermal management needs based on the specified junction-to-case thermal impedance. Ensure the mounting torque adheres to the recommended 1.5-2.5 N·m range for reliable mechanical and thermal contact.
Part Context
This component belongs to the DFA series of three-phase diode-thyristor modules manufactured by SanRex. It combines standard bridge rectifier functionality with thyristor control capabilities within a single isolated package, distinguishing it from pure diode modules like the DF series.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided documentation. Verify pinout and thermal characteristics if considering alternative manufacturers' integrated diode-thyristor modules.
