T810T-8G-TR

Overview

The T810T-8G-TR is a surface-mount logic level triac in the D²PAK package, rated for an RMS on-state current of 8 A and a repetitive peak off-state voltage of 800 V. It features a maximum junction temperature of 150 °C and operates across three quadrants. The device requires a gate trigger current (IGT) of up to 10 mA, enabling direct microcontroller control. Non-repetitive surge capability reaches 900 V, with a non-repetitive peak on-state current of 63 A at 25 °C. The component is supplied in tape and reel packaging.

Feature Summary

• Logic level sensitivity allows direct interfacing with microcontrollers via low gate trigger current requirements.
• Extended thermal performance supports operation at junction temperatures up to 150 °C.
• Optimized for high electromagnetic interference constraints typical of modern AC switching applications.

Applications

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

Procurement Notes

Verify the specific ordering suffix 'TR' confirms tape and reel delivery rather than tube packaging. Ensure the design accommodates the D²PAK footprint dimensions and thermal resistance characteristics specified in the datasheet. Confirm compliance with ECOPACK2 environmental standards if halogen-free requirements are mandatory for the target assembly process.

Selection Notes

Select this component when an 8 A RMS current rating and 800 V blocking voltage are required in a surface-mount form factor. The logic level gate drive simplifies circuit design by removing the need for complex driver stages. Verify that the application's thermal management can support the 150 °C maximum junction temperature limit under expected operating conditions.

Part Context

This part belongs to STMicroelectronics' T-series Triacs, which are engineered for general-purpose AC switching. The T810T-8G variant specifically utilizes the D²PAK package to facilitate automated manufacturing and compact printed circuit board layouts while maintaining robust electrical performance for resistive load control.

Replacement Considerations

The T810T-8G is the base component; the -TR suffix denotes the specific tape and reel packaging format. Other variants within the T810T series may offer different voltage ratings or package types but require verification of pinout compatibility and electrical parameter alignment before substitution.

FAQ

What is the maximum non-repetitive peak off-state voltage?

The T810T-8G supports a non-repetitive peak off-state voltage (VDSM/VRSM) of 900 V for pulses up to 10 ms at a junction temperature of 25 °C.

How does the gate trigger current affect MCU interfacing?

With a maximum gate trigger current (IGT) of 10 mA, the device can be driven directly by standard microcontroller output pins without requiring additional buffer transistors or complex driver circuits.

Is the device suitable for high-temperature environments?

Yes, the T810T-8G is designed to operate with a maximum junction temperature (Tj) of 150 °C, providing increased thermal margin compared to standard components limited to 125 °C.