QRF0640R30

Overview

The Powerex QRF0640R30 is a super fast recovery dual diode module rated for 280 Amperes and 600 Volts. It features an operating junction temperature range from -40 to 150 °C, with a maximum repetitive peak reverse blocking voltage of 600 V. The device exhibits a typical on-state voltage of 1.8 V at 280 A and a reverse recovery time of 95 ns under specified conditions. Thermal resistance from junction to case is typically 0.103 °C/W per diode, while the isolation voltage between circuit and baseplate is 2500 V RMS.

Feature Summary

• Super fast recovery time for high-speed switching applications
• Isolated mounting design compatible with common heatsinks
• Metal baseplate construction providing low thermal impedance
• RoHS compliant manufacturing process

Applications

• Free wheeling circuits
• Welding machine power stages
• Plasma cutting machine inverters

Procurement Notes

Verify the specific suffix 'F' in the part number against official documentation to confirm terminal configuration and pinout compatibility before integration. Ensure that the procurement channel provides the manufacturer's original datasheet or test reports to validate electrical parameters such as reverse recovery charge and on-state voltage thresholds. Confirm compliance with RoHS standards if required by your assembly specifications.

Selection Notes

Select this module when high current handling capacity near 280 Amperes is required alongside rapid switching speeds indicated by the 95 ns reverse recovery time. Consider the 2500 V isolation rating for safety requirements in high-voltage environments. Evaluate the thermal management needs based on the 0.103 °C/W junction-to-case resistance to ensure adequate heatsinking for sustained operation within the -40 to 150 °C junction temperature range.

Part Context

This component belongs to Powerex's Super Fast Recovery Dual Diode Modules series, designed specifically for applications demanding fast switching capabilities. The series utilizes isolated mounting techniques to facilitate easier integration with other components on shared thermal management structures. These modules are engineered to provide robust performance in industrial power conversion systems requiring high reliability and efficient heat dissipation.

Replacement Considerations

Consult official cross-reference lists for verified substitutes. Ensure any replacement matches the 600 V blocking voltage, 280 A current rating, and physical dimensions including the M6 mounting screw torque specification of 26 in-lb.

FAQ

What is the maximum allowable mounting torque for the M6 screws?

The maximum mounting torque for both the M6 mounting screw and the M6 terminal screw is 26 in-lb.

How does the module achieve isolation?

The module provides 2500 V RMS isolation voltage between the circuit terminals and the baseplate when all terminals are shorted, measured at 60 Hz for 60 seconds.

What is the typical reverse recovery energy at 125°C?

The typical reverse recovery energy (Erec) is 4.5 mJ per pulse at a junction temperature of 125°C.