TT425N16KOFHPSA3

SCRs - Modules Overview

The TT425N16KOFHPSA3 is a high-power thyristor module from Infineon's Power Block series, utilizing press-fit technology for secure mechanical mounting. It features a 1600 V repetitive peak reverse voltage and a 60 mm package footprint. The device supports a maximum average on-state current of 425 A at 180° electrical conduction and withstands surge currents up to 12,500 A. Key thermal parameters include a junction-to-case thermal resistance of 0.065 K/W and a maximum operating junction temperature of 125 °C.

SCRs - Modules Feature Summary

• Press-fit termination technology eliminates the need for screws, ensuring reliable contact under thermal cycling conditions.
• High surge current capability allows robust performance during fault conditions or inductive load switching.
• Low forward voltage drop minimizes conduction losses in phase control applications.

SCRs - Modules Applications

• Phase control circuits for industrial heating systems
• Motor drive rectifiers for heavy machinery
• High-power DC power supplies

SCRs - Modules Procurement Notes

Verify the specific suffix 'HPSA3' against official Infineon documentation to confirm material content and compliance status. Ensure that the press-fit installation tooling matches the 60 mm Power Block specifications. Cross-reference the datasheet version to validate thermal and electrical ratings before finalizing procurement orders.

SCRs - Modules Selection Notes

Select this component when high current density and vibration resistance are required. The press-fit option simplifies assembly compared to screw-mounted equivalents. Verify that the system's cooling solution can maintain the junction temperature below 125 °C given the 0.065 K/W thermal resistance. Confirm compatibility with the 1600 V blocking requirement of the circuit design.

SCRs - Modules Part Context

This part belongs to the TT425N family of high-power thyristors. The 'KOF' designation typically indicates the standard press-fit configuration within the 60 mm Power Block line. The 'HPSA3' suffix likely denotes specific material or environmental compliance attributes defined by Infineon. It serves as a discrete power semiconductor solution for demanding industrial power electronics.

SCRs - Modules Replacement Considerations

Direct replacements must match the 60 mm press-fit form factor and 1600 V / 425 A ratings. Check if alternative suffixes like 'HPSA2' offer identical electrical characteristics with different material declarations. Screw-mounted variants require redesign of the mechanical interface and may not fit existing PCB layouts without modification.

SCRs - Modules FAQ

What is the maximum rate of rise of on-state current (di/dt) for this module?

The maximum di/dt is specified as 120 A/µs according to DIN IEC 747-6 standards.

Does the press-fit technology affect the thermal performance compared to screw mounts?

The thermal resistance RthJC is rated at 0.065 K/W, which is optimized for the press-fit interface to ensure efficient heat transfer to the heatsink.

What is the typical forward voltage drop at maximum junction temperature?

The typical forward voltage drop (Vt0) at Tvj max is 0.9 V.