This part is a kind of semiconductor called TLC336A.

Function of this product has SENSITIVE GATE TRIACS.

Manufacturers : STMicroelectronics

Image and pinout :

Some of the text within the PDF file :

® TLC116 ---> TLC386 T/D/S/A SENSITIVE GATE TRIACS . . FEATURES VERY LOW IGT = 5mA max LOW IH = 15mA max DESCRIPTION The TLC116 ---> TLC386 T/D/S/A triac family uses a high performance glass passivated PNPN technology. These parts are suitable for general purpose applications where gate high sensitivity is required. Application on 4Q such as phase control and static ABSOLUTE RATINGS (limiting values) Symbol IT(RMS) RMS on-state current (360° conduction angle) Non repetitive surge peak on-state current ( Tj initial = 25°C ) I2t value Critical rate of rise of on-state current Gate supply : IG = 50mA diG/dt = 0.1A/µs Parameter Tl = 40°C Ta = 25°C tp = 8.3 ms tp = 10 ms tp = 10 ms Repetitive F = 50 Hz Non Repetitive Tstg Tj Tl Storage and operating junction temperature range Maximum [ ... ]

TLC336A PDF Datasheet Download