STT1900N18P55XPSA2

Overview

The Infineon STT1900N18P55XPSA2 is a soft starter module utilizing pressure contact technology and Advanced Medium Power Technology (AMPT). It features an integrated optimized heatsink for direct mounting without thermal interface material. The device supports a repetitive peak forward off-state and reverse voltage of 1800 V, with a maximum overload current of 1900 A at 21 seconds. Surge current capability reaches 17000 A at 25°C junction temperature. Key electrical parameters include a threshold voltage of 0.9 V, slope resistance of 0.28 mΩ, and a critical rate of rise of on-state current of 250 A/µs.

Feature Summary

• Pressure contact technology ensures high reliability and robust mechanical connections
• Advanced Medium Power Technology (AMPT) optimizes performance characteristics
• Integrated optimized heatsink allows for direct installation without thermal grease

Applications

• Soft starters
• Bypass switches
• Power controllers
• Static switches

Procurement Notes

Verify the complete part number including suffixes to ensure correct configuration. Confirm that the application environment remains within specified operating temperatures. Check datasheet derating curves for thermal limits under specific load conditions. Ensure gate drive signals comply with maximum trigger current and voltage specifications.

Selection Notes

Select this module for applications requiring high surge current handling and reliable phase control. Evaluate thermal management requirements against the provided transient thermal impedance data. Verify compatibility with existing bypass contactor designs due to compact footprint. Consider the 1800 V rating for appropriate system voltage margins.

Part Context

This component belongs to Infineon's soft starter module series designed for industrial power control. It utilizes W1C topology and is engineered for integration into compact systems. The module replaces traditional bulky solutions by combining semiconductor elements with an integrated cooling structure.

Replacement Considerations

Consult official Infineon documentation for qualified substitute part numbers. Verify electrical ratings and mechanical dimensions before substitution. Ensure thermal characteristics match the original design requirements.