T1235H-6I

Triacs Overview

The T1235H-6I is a medium current Triac from the STMicroelectronics H-Series, designed for general-purpose mains power AC switching. It features an RMS on-state current of 12 A and a non-repetitive peak on-state current of 126 A. The device supports a rated repetitive peak off-state voltage (VDRM) of 600 V with a maximum off-state leakage current of 5 uA. It operates within a junction temperature range of -40 °C to +125 °C. Key electrical parameters include a maximum holding current of 35 mA, gate trigger voltage of 1 V, and gate trigger current of 35 mA. The package provides a peak on-state voltage of 1.5 V.

Triacs Feature Summary

• Snubberless design enables direct driving of inductive loads without external RC snubber circuits.
• High thermal performance allows for reduced heatsink requirements compared to traditional Triacs.
• Internal ceramic pad provides electrical insulation rated at 2500 VRMS between case and terminals.

Triacs Applications

• General purpose mains power AC switching
• Solid state relays
• Motor speed control

Triacs Procurement Notes

Verify the specific suffix 'I' against the manufacturer's latest datasheet to confirm pinout configuration and insulation ratings. Ensure the ordering quantity aligns with the standard tube packaging format. Cross-reference the component marking with the official identification guide to prevent counterfeit substitution during assembly.

Triacs Selection Notes

Select this component when a 12 A RMS current rating and 600 V blocking voltage are required for AC load control. The 35 mA gate trigger current is compatible with standard logic-level drivers. Verify that the application's thermal dissipation requirements fit within the TO-220-3 package limits at the expected ambient temperature.

Triacs Part Context

This part belongs to the H-Series family of Triacs, which are characterized by high-temperature operation capabilities up to 150 °C junction temperature in some variants, though this specific model is rated to 125 °C. The series utilizes clip bonding technology to achieve low thermal resistance and robust mechanical stability for industrial applications.

Triacs Replacement Considerations

Direct replacements include T1235H-6T and T1235T-6I. Verify that substitute parts maintain the same TO-220-3 footprint and identical gate trigger characteristics to ensure circuit compatibility without redesigning the drive network.