This part is a kind of semiconductor called 2N2944.

Function of this product has TRANSISTOR.

Manufacturers : Motorola

Image and pinout :

Some of the text within the PDF file :

MAXIMUM RATINGS Rating Emitter-Collector Voltage Collector-Base Voltage Emitter-Base Voltage Collector Current Continuous Total Device Dissipation (o Ta = 25°C Derate above 25°C Total Device Dissipation @ TC = 25°C Derate above 25°C Operating and Storage Junction Temperature Range Symbol 2N2944 2N2945 2N2946 v ECO 10 20 35 vCBO 15 25 40 v EBO 15 25 40 •c 100 PD 400 Unit Vdc Vdc Vdc mAdc mW 2.3 mW/°C Pd 2.0 Watts TJ' Tstg 11.43 65 to + 200 mW/°C °C THERMAL CHARACTERISTICS Characteristic Thermal Resistance, Junction to Case Thermal Resistance, Junction to Ambient Symbol R&jc R 9JA Max 87.5 435 Unit °C/W °c/w ELECTRICAL CHARACTERISTICS (TA = 25°C unless otherwise noted.! Characteristic OFF CHARACTERISTICS Collector Cutoff Current (Vcb = 15 Vdc, lg = [ ... ]

2N2944 PDF Datasheet Download