T1210T-8G

Triacs Overview

The T1210T-8G is a Logic level T-series Triac in a D²PAK surface-mount package. It features an RMS on-state current of 12 A and a repetitive peak off-state voltage of 800 V. The device supports a non-repetitive surge peak on-state current of 105 A and operates within a junction temperature range of -40 to +150 °C. Gate trigger current is limited to 10 mA, enabling direct microcontroller control. Static characteristics include a maximum on-state voltage of 1.55 V at 25 °C and a holding current of 25 mA. Thermal resistance from junction to case is 1.3 °C/W.

Triacs Feature Summary

• Logic level gate drive capability for simplified MCU interfacing
• High commutation performance on resistive loads
• Extended thermal margin with 150 °C maximum junction temperature
• Halogen-free molding compound compliant with UL94 V0 flammability standard

Triacs Applications

• General purpose AC line load switching
• Small home appliances with resistive loads
• Hybrid relays
• Inrush current limiting circuits
• Overvoltage crowbar protection

Triacs Procurement Notes

Verify the specific ordering suffix when sourcing components. The base part number T1210T-8G corresponds to tube packaging, while the suffix TR indicates tape and reel delivery. Confirm that the received units match the required packaging format for automated manufacturing or manual assembly processes before integration into production lines.

Triacs Selection Notes

Select this component for applications requiring high EMI constraints and compact SMT designs. The D²PAK package facilitates automated manufacturing and provides low thermal resistance. Ensure the circuit design accounts for the 10 mA gate trigger requirement and the 150 °C operating limit to maximize thermal margins and ensure reliable switching performance under varying load conditions.

Triacs Part Context

This device belongs to STMicroelectronics' T-Series Triac family, which is optimized for high EMI constraints. The T1210T-8G variant specifically utilizes the D²PAK surface-mount package, distinguishing it from through-hole alternatives like the T1210T-8T. It shares the same electrical ratings as other 12A 800V logic-level triacs but offers distinct mechanical advantages for PCB layout.

Triacs Replacement Considerations

The T1210T-8T serves as a through-hole equivalent with identical electrical specifications. For surface-mount replacements, verify pinout compatibility and thermal resistance values against other D²PAK triacs. Ensure any substitute maintains the 10 mA logic-level gate trigger current and 150 °C junction temperature rating.