T3035H-6I

Overview

The STMicroelectronics T3035H-6I is a Snubberless Triac from the H-Series, rated for 30 A RMS on-state current and 600 V repetitive peak off-state voltage. It operates with a maximum junction temperature of 150 °C and features a TO-220AB-3 insulated package providing 2500 V RMS isolation via an internal ceramic pad. Key electrical parameters include a gate trigger current of 35 mA, a holding current of 60 mA maximum, and a non-repetitive peak on-state current of 270 A. The device exhibits a typical on-state voltage of 1.55 V and supports three triggering quadrants.

Feature Summary

• Snubberless technology enabling high noise immunity and specified turn-off commutation at maximum junction temperatures without external RC snubbers.
• High thermal performance with low thermal resistance clip bonding, allowing heatsink size optimization compared to traditional triacs.
• Integrated voltage insulation rated at 2500 V RMS through an internal ceramic pad for enhanced safety in grounded applications.

Applications

• Control of universal motors in power tools
• Switching inductive loads in major home appliances
• General purpose mains power AC switching

Procurement Notes

Verify component authenticity by checking the manufacturer's marking code against official documentation. Ensure the ordering suffix matches the required voltage rating and package type. Confirm RoHS compliance status and UL certification file references during supplier qualification. Request batch-specific test reports if operating near maximum thermal limits.

Selection Notes

Select this component when designing circuits requiring robust commutation capabilities at elevated temperatures up to 150 °C. The Snubberless feature simplifies PCB layout by eliminating external snubber networks. Verify that the load current does not exceed the 30 A RMS rating under worst-case thermal conditions. Consider the 2500 V RMS insulation requirement if mounting on grounded heat sinks.

Part Context

This part belongs to the ST H-Series Triacs, designed specifically for high-temperature operation. The series includes variants with different voltage ratings such as the T3035H-8I (800 V) and current ratings like the T2035H-6I (20 A). All members share the Snubberless technology and insulated package options for industrial and appliance applications.

Replacement Considerations

Direct substitutes within the same family include the T3035H-8I for higher voltage requirements or the T2035H-6I for lower current needs. Cross-brand replacements require verification of matching RMS current, blocking voltage, gate trigger characteristics, and package dimensions.