T1220T-6I

Triacs Overview

The T1220T-6I is a Snubberless logic level standard 12 A TRIAC manufactured by STMicroelectronics. It features a rated repetitive off-state voltage (VDRM) of 600 V and an on-state voltage of 1.55 V. The device supports a non-repetitive peak on-state current of 95 A with a maximum holding current (Ih) of 15 mA. Gate triggering requirements include a voltage (Vgt) of 1.3 V and a current (Igt) of 20 mA. Leakage current in the off-state is limited to 5 uA at VDRM. Operating temperatures range from -40 C to +125 C. It utilizes a TO-220-3 through-hole package.

Triacs Feature Summary

• Snubberless design allows operation without external RC networks when datasheet limits are respected
• Logic level gate compatibility for direct interface with microcontrollers or logic circuits
• High static and dynamic commutation capability suitable for demanding AC switching applications

Triacs Applications

• On/off control functions in general purpose AC switching systems
• Phase angle control applications requiring high commutation capability
• Value-sensitive appliances utilizing parameters guidance for design optimization

Triacs Procurement Notes

Verify the specific ordering suffix and package variant against the official STMicroelectronics datasheet before procurement. Confirm that the TO-220-3 package matches the required thermal and mechanical constraints for the target application. Ensure compliance with RoHS directives as specified in the manufacturer documentation.

Triacs Selection Notes

Select this component for medium current AC switching where snubberless operation reduces bill of materials cost. Verify that the 600 V blocking voltage meets the peak line voltage requirements. Check that the 12 A RMS current rating accommodates the load current including startup surges up to the 95 A limit.

Triacs Part Context

The T1220T-6I belongs to the T12T series of Triacs designed for general purpose AC switching. This series provides insulation rated at 2500 V rms in the TO-220AB insulated package variant. The devices are UL certified with reference file E81734 for the 600 V Vrm rating.

Triacs Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.