T4771N22TOFXPSA1

Overview

The T4771N22TOFXPSA1 is a silicon SCR module manufactured by Infineon Technologies, designed for high-power thyristor and diode applications. It features a rated repetitive off-state voltage (VDRM) of 2.2 kV and a non-repetitive peak on-state current (ITSM) capability of 95 kA. The device utilizes the TO-200AA package format, commonly referred to as Eco Block, which supports base mounting. This component belongs to the T4771N series within Infineon's power semiconductor portfolio, engineered for robust performance in industrial power conversion systems requiring high blocking voltage and significant surge current handling.

Feature Summary

• High blocking stability with guaranteed short-circuit failure mode characteristics
• Integrated design combining thyristor and diode functions in a single module
• Base-mounted construction suitable for direct heatsink attachment

Applications

• Industrial phase control circuits
• High-power DC-to-AC inversion systems
• Static VAR compensators (SVC)

Procurement Notes

Verify the specific ordering suffix against official Infineon documentation to confirm exact electrical tolerances and packaging variations. Confirm RoHS compliance status and lead times directly with authorized distributors or the manufacturer, as availability may fluctuate based on production cycles. Ensure the procurement channel provides valid traceability certificates for critical power applications.

Selection Notes

Select this module when application requirements demand a 2.2 kV blocking voltage combined with extreme surge current tolerance up to 95 kA. The TO-200AA form factor necessitates compatible mechanical mounting hardware and thermal interface materials. Designers must account for the specific gate trigger characteristics and thermal resistance values provided in the official datasheet to ensure safe operating area compliance under continuous load conditions.

Part Context

This part number represents a variant within Infineon's T4771N family of high-power silicon-controlled rectifiers. The 'TOF' designation typically indicates the standard TO-200AA Eco Block package configuration. The 'XPSA1' suffix denotes specific manufacturing lot or packaging details defined by Infineon. These modules are positioned for heavy-duty industrial use where reliability under high stress is paramount.

Replacement Considerations

Direct replacements should be sought from the same T4771N series or equivalent Infineon Eco Block modules with matching 2.2 kV VDRM ratings. Verify that substitute parts maintain identical pinout configurations and mechanical dimensions for TO-200AA compatibility. Cross-reference ITSM capabilities and thermal parameters to ensure equivalent performance in the target circuit.