T2035H-8I

Overview

The T2035H-8I is a high-temperature Triac from the H-Series, rated for 20 A RMS on-state current and 800 V repetitive peak off-state voltage. It operates within a junction temperature range of -40 °C to +150 °C and utilizes TO-220AB insulated packaging with an internal ceramic pad providing 2.5 kV RMS insulation. Key electrical parameters include a maximum gate trigger current (IGT) of 35 mA, a non-repetitive surge peak on-state current (ITSM) of 210 A at 16.7 ms, and a critical rate of rise of on-state current ((dl/dt)c) of 20 A/ms at 150 °C. The device features ECOPACK2 compliance and UL94-V0 certified molding resin.

Feature Summary

• High noise immunity and robust dynamic turn-off commutation enabled by ST Snubberless technology
• Enhanced thermal management allowing heatsink size reduction in compact AC load drives
• Integrated voltage insulation via internal ceramic pad rated at 2500 VRMS

Applications

• General purpose AC line load control
• AC induction and universal motor control
• Lighting and automation I/O control
• Water heater, room heater and coffee machine
• Home automation smart AC plug
• Inrush current limiter in AC DC rectifiers

Procurement Notes

Verify component authenticity through authorized STMicroelectronics distribution channels or official manufacturer sales offices. Confirm that the ordering suffix 'I' corresponds specifically to the TO-220AB insulated package variant. Ensure procurement documentation includes the latest datasheet revision DS13132 Rev 3 to validate technical specifications against current manufacturing standards.

Selection Notes

Select this component when designing circuits requiring operation up to 150 °C junction temperature and 800 V blocking voltage. The TO-220AB insulated package is suitable for applications demanding galvanic isolation without external insulators. Consider the 20 A RMS rating relative to case temperature derating curves to ensure adequate thermal dissipation under continuous load conditions.

Part Context

This part belongs to the T2035H series of high-temperature Triacs designed for mains power AC switching. It shares the same physical footprint and insulation characteristics as other variants in the family but is distinguished by its specific 800 V voltage rating and 35 mA gate trigger current configuration.

Replacement Considerations

Direct substitutes within the same series include T2035H-6I (600 V rating). For higher current requirements, consider the T3035H-8I (30 A rating). Verify pinout compatibility and insulation voltage ratings before substituting.

FAQ

What is the maximum junction temperature for the T2035H-8I?

The maximum operating junction temperature (Tj max) is 150 °C.

Does the T2035H-8I require a snubber network?

No, it is based on ST's Snubberless technology, offering robust dynamic turn-off commutation and high noise immunity without requiring a snubber network.

What is the insulation voltage rating of the package?

The internal ceramic pad provides a recognized voltage insulation rated at 2500 VRMS.