DFA150CB80

Overview

The SanRex DFA150CB80 is an isolated power module designed for rectification requiring prevention of rush current. It integrates six diodes connected in a three-phase bridge configuration and a thyristor connected in series with the DC line. The module features a repetitive peak reverse voltage (VRRM) of 800 V, a maximum non-repetitive peak reverse voltage (VRSM) of 960 V, and a continuous output current (ID) of 150 A at Tc=113°C. The thyristor provides an average on-state current (IT(AV)) of 150 A. Key electrical parameters include a forward voltage drop (VFM) of 1.35 V at 150 A, a surge forward current (IFSM) of 1460 A, and a gate trigger current (IGT) of 70 mA. The operating junction temperature range spans from -40°C to +150°C.

Feature Summary

• Integrates a three-phase diode bridge and a series-connected thyristor within a single isolated package.
• Designed specifically for applications requiring prevention of rush current during rectification.
• Provides high thermal performance with low thermal impedance between junction and case.

Applications

• Inverter systems for motor control
• AC stabilized power supplies
• Switching Mode Power Supplies (SMPS)

Procurement Notes

Verify component authenticity by cross-referencing the manufacturer's part number and datasheet specifications. Confirm that the isolation breakdown voltage meets system requirements. Ensure mounting torque adheres to recommended values to maintain thermal interface integrity. Check for RoHS compliance status before integration into regulated assemblies.

Selection Notes

Select this module when a combined three-phase rectifier and controlled DC line element are required. Verify that the 800 V rating aligns with the peak line-to-line voltage of the AC input. Ensure the thermal management system can maintain the case temperature below 113°C to sustain the 150 A continuous current rating without exceeding junction limits.

Part Context

This component belongs to the SanRex DFA150CB series, which combines diode and thyristor functionalities. The '80' suffix denotes the 800 V voltage rating variant, distinct from the 1600 V rated DFA150CB160. It utilizes silicon technology and is housed in a screw-mount isolated package weighing approximately 460 g.

Replacement Considerations

The DFA150CB160 serves as a higher voltage alternative within the same series. Direct substitution requires verifying that the lower 800 V rating is sufficient for the specific circuit application. No other direct equivalent part numbers are confirmed in public documentation.