T3035H-8T

Overview

The T3035H-8T is a high-temperature Triac from the ST H-Series, housed in a TO-220AB package. It features an RMS on-state current of 30 A and a repetitive peak off-state voltage of 800 V. The device supports a maximum junction temperature of 150 °C and operates within a range of -40 to +150 °C. Key electrical parameters include a gate trigger current (IGT) maximum of 35 mA, a holding current (IH) maximum of 60 mA, and a non-repetitive surge peak on-state current of 270 A at 20 ms. The static dV/dt immunity is specified at a minimum of 2000 V/µs at 150 °C.

Feature Summary

• Based on ST Snubberless high temperature technology for enhanced thermal management
• Provides robust dynamic turn-off commutation and high noise immunity up to maximum junction temperature
• Supports three triggering quadrants for versatile control applications

Applications

• Home automation smart AC plugs
• Water heaters, room heaters, and coffee machines
• AC induction and universal motor control
• Inrush current limiting in AC DC rectifiers
• General purpose AC line load control

Procurement Notes

Verify the specific ordering code against the manufacturer's official documentation to ensure correct package type and environmental compliance grade. Confirm that the required base quantity matches the standard tube packaging specifications provided by the supplier. Always check the latest datasheet revision for any updates to absolute maximum ratings or thermal characteristics before finalizing procurement orders.

Selection Notes

Select this component when heavy AC loads require compact drive solutions with reduced heatsink sizes due to its enhanced thermal management capabilities. Ensure the application demands operation at junction temperatures up to 150 °C and requires high static dV/dt immunity without external snubber networks. Verify that the gate drive circuit can supply the necessary trigger current within the specified limits for reliable switching across all quadrants.

Part Context

This Triac belongs to the ST H-Series, which is characterized by high noise immunity and robust commutations designed for high-temperature environments. The series utilizes Snubberless technology to simplify circuit design while maintaining performance under harsh conditions. The TO-220AB package provides a standardized form factor suitable for through-hole mounting and efficient heat dissipation to the case.

Replacement Considerations

Consider the T3035H-8I for insulated TO-220AB requirements or the T3035H-8G for DPAK surface mount applications. Lower current variants such as the T2035H-8T or T835H-8T may be selected if the 30 A rating exceeds system needs.