T1900N18TOFVTXPSA1

Overview

The T1900N18TOFVTXPSA1 is an Electrical Triggered Phase Control (ETC) thyristor disc manufactured by Infineon Technologies. It features a nominal repetitive peak off-state voltage of 1800 V and a maximum on-state current of 1900 A at 180° electrical sine conduction. The device has a maximum junction temperature rating of 125°C and a thermal resistance from junction to case of 23 K/kW. Key dynamic parameters include a turn-off time of 240 µs and a surge current capability of 22,500 A for 10 ms. The component utilizes a ceramic-insulated disc package with a diameter of 75 mm and height of 26 mm.

Feature Summary

• Electrical triggering mechanism designed for phase control applications
• High surge current handling capability for robust fault protection
• Ceramic insulation providing enhanced dielectric strength and mechanical stability

Applications

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

Procurement Notes

Verify the specific suffix 'TXPSA1' against official Infineon documentation to confirm RoHS compliance status and exact manufacturing lot details. Ensure that the ordering quantity meets any minimum order requirements specified by authorized distributors. Confirm lead times directly with the supplier as production cycles may vary based on factory schedules.

Selection Notes

Select this component when designing circuits requiring high-voltage phase control with electrical gate triggering. Verify that the system's cooling infrastructure can manage the 23 K/kW thermal resistance. Ensure the gate drive circuit provides sufficient current to reliably trigger the 1900 A device within the required timing constraints.

Part Context

This part belongs to Infineon's high-power thyristor disc family, specifically engineered for demanding industrial and energy applications. It shares the standard 75 mm disc form factor common in large-scale power electronics, allowing compatibility with existing clamp assemblies and heat sink designs used in heavy-duty converter stations.

Replacement Considerations

Direct replacements must match the 1800 V / 1900 A rating and ETC topology. Consult Infineon's official cross-reference guides for equivalent parts within the T-series lineup. Verify pinout and mechanical dimensions before substitution.