800 V, 16 A triac with a logic-level gate — what it does on your board
The STMicroelectronics BTB16-800SWRG is a 16 A RMS, 800 V off-state triac in a TO-220 through-hole package, designed for AC load switching in industrial and appliance controls. Its logic-level sensitive gate (Igt max 10 mA, Vgt max 1.3 V) means a microcontroller I/O pin or a low-power driver can fire it directly, without a separate transistor stage.
Sensitive gate — why it simplifies your drive circuit
With a maximum gate trigger current of 10 mA and a maximum gate trigger voltage of 1.3 V, this triac qualifies as logic-level sensitive. The 15 mA maximum holding current keeps the device latched once triggered, even with light loads.
Surge capability and thermal environment
Rated for 160 A non-repetitive surge at 50 Hz and 168 A at 60 Hz, the BTB16-800SWRG handles the inrush from incandescent lamps, motor starts, or capacitive loads without commutating off.