TD425N18KOFHPSA2

SCRs - Modules Overview

The TD425N18KOFHPSA2 is a high-power thyristor module manufactured by Infineon Technologies, belonging to the Power Block series. It features a single SCR topology with screw mounting in a TZ425 package. The device supports phase control applications with an RMS on-state current of 425 A and a peak repetitive forward/reverse voltage of 1800 V. Key electrical parameters include a maximum junction temperature of 125°C, a thermal resistance from junction to case of 0.065 K/W, and a gate trigger voltage of 0.9 V at maximum temperature.

SCRs - Modules Feature Summary

• Utilizes reliable pressure contact technology for robust assembly
• Features an isolated copper base plate for enhanced thermal management
• Designed for high-reliability phase control operations

SCRs - Modules Applications

• Industrial motor drives
• High-power rectifier circuits
• HVDC transmission systems

SCRs - Modules Procurement Notes

Verify the specific suffix against official datasheets to confirm exact manufacturing lot characteristics. Confirm RoHS compliance status through the manufacturer's certification documents before integration into regulated assemblies.

SCRs - Modules Selection Notes

Evaluate the thermal resistance and current derating curves against the system's cooling capacity. Ensure the gate drive circuit can supply sufficient current to meet the specified di/dt requirements during turn-on transitions.

SCRs - Modules Part Context

This component is part of Infineon's Power Block family, designed for demanding power electronics environments. It shares architectural similarities with other modules in the 60 mm form factor series, offering standardized mounting interfaces for system designers.

SCRs - Modules Replacement Considerations

Consult official cross-reference lists for direct replacements. Verify pin compatibility and thermal interface dimensions when substituting with similar thyristor modules from the same or alternative manufacturers.