This part is a kind of semiconductor called 2N2903.

Function of this product has DUAL AMPLIFIER TRANSISTOR.

Manufacturers : Motorola

Image and pinout :

Some of the text within the PDF file :

2N2903,A MAXIMUM RATINGS Rating Collector-Emitter Voltage Collector-Base Voltage Emitter-Base Voltage Collector Current Continuous Total Device Dissipation (5. 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 •c PD Pd TJ. T stg Value 30 60 7.0 50 One Die Both Die 200 1.14 300 1.71 0.6 3.43 1.2 6.86 -65 to +200 Unit Vdc Vdc Vdc mAdc mW mW/°C Watts mW/°C °C ELECTRICAL CHARACTERISTICS (TA = 25°C unless otherwise noted.) Characteristic OFF CHARACTERISTICS Collector-Emitter Sustaining Voltaged) dc = 10 mAdc, Ib - 0) Collector-Base Breakdown Voltage (Iq = 10 puAdc, Ie = 0) Emitter-Base Breakdown Voltage Oe = 0-1 ^Adc, c) = Q) Collector Cutoff Current (Vcb 50 Vdc [ ... ]

2N2903 PDF Datasheet Download