T835-600B-TR

Overview

The STMicroelectronics T835-600B-TR is an 8 A Snubberless™ triac designed for general-purpose AC switching applications. It features a repetitive peak off-state voltage of 600 V and operates within a junction temperature range of -40°C to +125°C. The device utilizes a D2PAK (TO-263) surface-mount package, facilitating automated assembly. Key electrical parameters include a maximum on-state RMS current of 8 A, a peak gate trigger current of 35 mA, and a peak gate trigger voltage of 1.3 V. It exhibits a low on-state voltage of approximately 1.55 V and a maximum holding current of 35 mA. The component supports non-repetitive surge currents up to 84 A.

Feature Summary

• Snubberless design enables direct operation on inductive loads without external RC snubber circuits
• Logic-level compatibility allows direct interface with low-power drivers such as microcontrollers
• High static and dynamic commutation performance ensures reliable switching under demanding conditions

Applications

• Static relays and heating regulation systems
• Induction motor starting circuits
• Phase control operation in light dimmers and motor speed controllers

Procurement Notes

Verify the specific suffix 'B' against official STMicroelectronics documentation to confirm exact pinout and thermal characteristics, as variations exist within the T835 family. Ensure the 'TR' designation matches the required tape-and-reel packaging format for your manufacturing line. Cross-reference the datasheet revision date to validate parameter consistency before finalizing procurement specifications.

Selection Notes

Select this component when high commutation capability is required for inductive loads without adding external snubber components. The logic-level triggering makes it suitable for direct microcontroller interfacing. Consider the D2PAK package for surface-mount efficiency and adequate thermal dissipation for 8 A continuous current applications in compact designs.

Part Context

The T835 series belongs to STMicroelectronics' Snubberless™ triac family, offering medium current ratings with enhanced commutation capabilities. This series includes both through-hole and surface-mount variants, providing flexibility for various PCB layouts. The T835-600B-TR specifically addresses the need for robust AC switching in cost-sensitive appliances while maintaining high reliability standards.

Replacement Considerations

Equivalent alternatives may include other 8 A Snubberless triacs from manufacturers like Littelfuse or Infineon. Verify that substitute parts match the 600 V rating, 8 A current capacity, and D2PAK package dimensions. Ensure triggering characteristics remain compatible with existing driver circuitry.