T850H-6G-TR

Overview

The T850H-6G-TR is a high-temperature triac from the STMicroelectronics H-Series, rated for 600 V repetitive peak off-state voltage and 8 A RMS on-state current. It features a maximum junction temperature of 150 °C and operates within a range of -40 °C to +150 °C. The device utilizes a D2PAK surface-mount package and includes an internal ceramic pad providing 2500 V RMS insulation. Key electrical parameters include a peak on-state voltage of 1.5 V, a holding current of 75 mA maximum, and a gate trigger current of 50 mA. It supports non-repetitive surge currents up to 84 A.

Feature Summary

• Snubberless design optimized for inductive loads with high commutation capability
• High thermal performance enabling operation at junction temperatures up to 150 °C
• Integrated ceramic pad for enhanced voltage insulation compliance

Applications

• General purpose AC switching in mains power circuits
• Static relays and heating regulation systems
• Induction motor starting circuits
• Phase control in light dimmers and motor speed controllers

Procurement Notes

Verify the specific suffix against official documentation to confirm tape-and-reel packaging configuration. Ensure the component meets RoHS directives and UL certification requirements relevant to the target application. Cross-reference the manufacturer part number with authorized distributor listings to validate authenticity and supply chain integrity before procurement.

Selection Notes

Select this component for applications requiring robust switching of inductive loads without external snubber networks. The 600 V rating suits standard single-phase AC mains environments. Consider the D2PAK package for surface-mount assembly needs and evaluate thermal management strategies to maintain junction temperatures below the 150 °C limit during continuous operation.

Part Context

This device belongs to the T850H series of high-temperature triacs designed for general-purpose AC switching. It shares core specifications with through-hole variants like the T850H-6T but differs in package type. The series is characterized by its Snubberless technology and high thermal stability, making it suitable for compact designs where heat dissipation is critical.

Replacement Considerations

Direct substitutes include other STMicroelectronics triacs from the same H-Series family with matching voltage and current ratings, such as the T850H-6T for through-hole implementations or the T1250H-6G for higher current requirements. Verify pinout compatibility and thermal resistance values when considering alternative manufacturers.