T700043004BY

Overview

The T700043004BY is a standard recovery silicon controlled rectifier (SCR) manufactured by Powerex Inc. It is housed in a TO-209 variant package designed for base or stud mounting applications. The device features a maximum repetitive peak off-state voltage of 400 V and a maximum gate trigger voltage of 3 V. It supports a maximum average on-state current of 250 A with a maximum gate trigger current of 150 mA.

Feature Summary

• Standard recovery type construction suitable for general power control applications
• Robust mechanical design utilizing a TO-209 variant package for secure mounting
• Defined gate triggering characteristics ensuring reliable turn-on performance

Applications

• Industrial motor drive systems
• Power supply circuits requiring high current handling
• General purpose AC/DC conversion modules

Procurement Notes

Verify the specific datasheet revision to confirm thermal resistance values and detailed mechanical dimensions before finalizing the design. Ensure that the mounting surface preparation meets the manufacturer's requirements for optimal heat dissipation and electrical isolation. Cross-reference the part number suffixes to confirm exact pinout configurations and material specifications.

Selection Notes

Select this component when an SCR with a 400 V blocking capability and 250 A continuous current rating is required. The TO-209 variant package facilitates direct mounting to heatsinks, simplifying thermal management in compact enclosures. Evaluate the gate trigger parameters against the driving circuit capabilities to ensure proper signal levels are available for reliable switching operations.

Part Context

This component belongs to the Powerex series of high-power semiconductor switches. These devices are engineered for durability in demanding industrial environments. The TO-209 variant form factor provides a standardized interface for integration into larger power assemblies and modular converter designs used across various heavy-duty equipment sectors.