TT251N18KOFHPSA1

SCRs - Modules Overview

The TT251N18KOFHPSA1 is a silicon thyristor module manufactured by Infineon Technologies, designed for high-power phase control applications. It features a 1800 V repetitive peak reverse voltage and a 250 A average on-state current rating at 180° electrical sine conduction. The device utilizes a 50 mm Power Block package with screw mounting capabilities. Key electrical parameters include a maximum junction temperature of 125°C, a critical di/dt rating of 250 A/µs, and a thermal resistance from junction to case of 0.13 K/W. The module operates within a temperature range of -40°C to +125°C.

SCRs - Modules Feature Summary

• Designed for pressure contact technology in phase control circuits
• High short-circuit capability with guaranteed failure mode safety
• Robust construction suitable for demanding industrial environments

SCRs - Modules Applications

• Industrial motor drives and variable frequency drives
• High-power DC power supplies and rectifiers
• Electrolysis and electroplating power systems

SCRs - Modules Procurement Notes

Verify the specific suffix HPSA1 against official Infineon documentation to confirm exact manufacturing lot and compliance details. Check current lifecycle status as some variants may be subject to discontinuation or limited supply constraints. Ensure compatibility with existing cooling infrastructure given the thermal requirements.

SCRs - Modules Selection Notes

Select this module when a 1800 V blocking voltage and 250 A continuous current are required in a compact 50 mm footprint. Consider the 0.13 K/W thermal resistance for heatsink sizing calculations. Verify that the gate trigger characteristics align with the available drive circuitry for reliable turn-on under all operating conditions.

SCRs - Modules Part Context

This component belongs to Infineon's TT251N series of high-power thyristor modules. It shares the same mechanical form factor and general performance class as other members like the TT251N16KOF, differing primarily in its voltage rating. The series is engineered for robustness in heavy-duty industrial power conversion tasks.

SCRs - Modules Replacement Considerations

Direct substitutes include the TT251N16KOF for lower voltage applications or the TT250N18KOF for similar ratings. Verify pinout compatibility and thermal interface dimensions before swapping. Consult Infineon's cross-reference guides for approved alternatives if the specific HPSA1 suffix is unavailable.