This part is a kind of semiconductor called 2N4264.

Function of this product has General Purpose Transistor(NPN Silicon).

Manufacturers : ON Semiconductor

Image and pinout :

Some of the text within the PDF file :

MOTOROLA SEMICONDUCTOR TECHNICAL DATA Order this document by 2N4264/D General Purpose Transistor NPN Silicon COLLECTOR 3 2 BASE 1 EMITTER 2N4264 1 2 3 MAXIMUM RATINGS Rating Collector – Emitter Voltage Collector – Base Voltage Emitter – Base Voltage Collector Current Continuous Total Device Dissipation @ TA = 25°C Derate above 25°C Total Device Dissipation @ TC = 25°C Derate above 25°C Operating and Storage Junction Temperature Range Symbol VCEO VCBO VEBO IC PD PD TJ, Tstg Value 15 30 6.0 200 350 2.8 1.0 8.0 – 55 to +150 Unit Vdc Vdc Vdc mAdc mW mW/°C Watts mW/°C °C CASE 29–04, STYLE 1 TO–92 (TO–226AA) THERMAL CHARACTERISTICS Characteristic Thermal Resistance, Junction to Ambient Thermal Resistance, Junction to Case Symbol RqJA RqJC Max 357 125 Unit °C/W ° [ ... ]

2N4264 PDF Datasheet Download