This part is a kind of semiconductor called BCR189T.

Function of this product has PNP Silicon Digital Transistor.

Manufacturers : Infineon Technologies AG

Image and pinout :

Some of the text within the PDF file :

BCR189... PNP Silicon Digital Transistor • Switching circuit, inverter, interface circuit, driver circuit • Built in bias resistor (R1 = 22kΩ) BCR189/F/L3 BCR189T C 3 R1 1 B 2 E EHA07180 Type BCR189 BCR189F BCR189L3 BCR189T Marking W2s W2s W2 W2s 1=B 1=B 1=B 1=B 2=E 2=E 2=E 2=E Pin Configuration 3=C 3=C 3=C 3=C - Package SOT23 TSLP-3 TSLP-3-4 SC75 1 Aug-29-2003 BCR189... Maximum Ratings Parameter Collector-emitter voltage Collector-base voltage Emitter-base voltage Input on voltage Collector current Total power dissipationBCR189, TS ≤ 102°C BCR189F, TS ≤ 128°C BCR189L3, TS ≤ 135°C BCR189T, TS ≤ 109°C Junction temperature Storage temperature Thermal Resistance Parameter Junction - soldering point1) BCR189 BCR189F BCR189L3 BCR189T 1For calculation of R thJA pleas [ ... ]

BCR189T PDF Datasheet Download