This part is a kind of semiconductor called BTA10.

Function of this product has Discrete Triacs.

Manufacturers : Sirectifier

Image and pinout :

Some of the text within the PDF file :

BTB/BTA10 Discrete Triacs(Non-Isolated/Isolated) Dimensions TO-220AB Dim. A B C D E F G H J K M N Q R Inches Min. Max. 0.500 0.550 0.580 0.630 0.390 0.420 0.139 0.161 0.230 0.270 0.100 0.125 0.045 0.065 0.110 0.230 0.025 0.040 0.100 BSC 0.170 0.190 0.045 0.055 0.014 0.022 0.090 0.110 Milimeter Min. Max. 12.70 13.97 14.73 16.00 9.91 10.66 3.54 4.08 5.85 6.85 2.54 3.18 1.15 1.65 2.79 5.84 0.64 1.01 2.54 BSC 4.32 4.82 1.14 1.39 0.35 0.56 2.29 2.79 T2 G T2 T1 G T1 ABSOLUTE MAXIMUM RATINGS Symbol IT(RMS) ITSM I²t dI/dt Parameter RMS on-state current (full sine wave) Non repetitive surge peak on-state current (full cycle, Tj initial = 25° C) I²t Value for fusing Critical rate of rise of on-state current _ 100 ns I G = 2 x I GT , tr < TO-220AB F = 60 Hz F = 50 Hz Tc = 105°C t = 16.7 ms t [ ... ]

BTA10 PDF Datasheet Download