T5035H-8PI

Overview

The STMicroelectronics T5035H-8PI is a 50 A RMS Snubberless Triac housed in an insulated TOP3 package. It features an 800 V symmetrical blocking voltage and operates at junction temperatures up to 150 °C. The device supports three triggering quadrants with a maximum gate trigger current of 35 mA and a maximum gate trigger voltage of 1.3 V. It provides high static dV/dt noise immunity (minimum 2000 V/µs at 150 °C) and robust dynamic turn-off commutation ((dl/dt)c minimum 40 A/ms). The component includes internal ceramic insulation rated at 2.5 kV RMS, complies with UL1557 standards, and utilizes ECOPACK2 compliant molding resin certified to UL94-V0 flammability.

Feature Summary

• Snubberless technology enables operation without external RC snubber circuits under specified limits.
• Insulated TOP3 package incorporates an internal ceramic pad for 2.5 kV RMS electrical isolation.
• High temperature capability allows operation up to 150 °C junction temperature for enhanced thermal management.
• Robust commutation characteristics provide high noise immunity and reliable turn-off performance.

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
• Lighting and automation I/O control

Procurement Notes

Verify the specific ordering code T5035H-8PI against the manufacturer's datasheet DS13818 Rev 3 to ensure correct package type and insulation rating. Confirm that the application environment remains within the specified absolute maximum ratings, particularly regarding case temperature and surge currents. Check for any recent product change notifications or revision updates from STMicroelectronics prior to finalizing procurement specifications.

Selection Notes

Select this component when heavy AC loads require compact drive solutions with reduced heatsink sizes due to enhanced thermal management. Ensure the circuit design respects the 35 mA maximum gate trigger current and 1.3 V maximum gate trigger voltage limits. Verify that the load conditions do not exceed the 525 A non-repetitive surge peak on-state current or the critical rate of rise of on-state current of 100 A/µs during selection.

Part Context

The T5035H-8PI belongs to the H-series Triac family designed for general-purpose mains power AC switching. It shares the Snubberless technology and high-temperature operational capabilities found in other members of the series, such as the T3035H-8I and T2035H-8I. The primary distinction lies in its 50 A RMS current rating and the specific TOP3 insulated packaging configuration.

Replacement Considerations

Direct substitutes within the same family include the T3035H-8I and T2035H-8I, though these offer lower current ratings of 30 A and 20 A respectively. When replacing, verify that the alternative part meets the required 50 A RMS current capacity and maintains compatibility with the insulated TOP3 package dimensions and mounting requirements.

FAQ

What is the maximum junction temperature for the T5035H-8PI?

The maximum operating junction temperature (Tj max) for the T5035H-8PI is 150 °C.

Does the T5035H-8PI require an external snubber circuit?

No, it is based on Snubberless technology and can be used without an external snubber RC circuit provided the defined limits are respected.

What is the insulation voltage rating of the TOP3 package?

The internal ceramic pad provides recognized voltage insulation rated at 2500 VRMS, complying with UL1557 standards.