BTA12 – 600B Triac (600V-12A)

BTA12-600B Triac
The BTA12 is a medium power triac from ST Microelectronics. They have good pulsed energy dissipation performance and a low holding current, making them ideal for applications like motor controllers and LED dimmers.

BTA12 TRIAC Pinout
Pin Number

Pin Name

Description

1

A1

Current flows in/out of this terminal

2

A2

Current flows in/out of this terminal

3

G

Current into/out of this terminal controls conduction between A1 and A2

Features:
600V 12A medium power TRIAC
Low thermal resistance bonding
High surge energy capability
~20W power dissipation with TO220 package
How To Use BTA12
The BTA12 is a medium power TRIAC with a low holding current, making it suitable for applications like motor controllers and LED dimmers. The BTA12 also has a high surge energy capability, meaning it can handle inductive loads without a snubber. This is possible because of the thermal mass of the die, which absorbs the energy from short pulses before there is a temperature increase. This is shown in the graph of thermal impedance versus pulse duration.

BTA12 Graph

Applications:
LED dimming circuits
Motor speed controllers
Logic-level AC load switching
2D Model and Dimensions: