This part is a kind of semiconductor called N2222A.
Function of this product has NPN General Purpose Amplifier.
Manufacturers : Fairchild
Image and pinout :

Some of the text within the PDF file :
PN2222A / MMBT2222A / MMPQ2222 / NMT2222 / PZT2222A PN2222A MMBT2222A C PZT2222A C E C B E C B TO-92 E SOT-23 Mark: 1P B SOT-223 MMPQ2222 E2 B2 E3 B3 E4 B4 NMT2222 C2 E1 C1 E1 B1 SOIC-16 pin #1 C1 C2 C1 C3 C2 C4 C4 C3 B2 E2 SOT-6 Mark: .1B B1 NPN General Purpose Amplifier This device is for use as a medium power amplifier and switch requiring collector currents up to 500 mA. Sourced from Process 19. Absolute Maximum Ratings* Symbol VCEO VCBO VEBO IC TJ, Tstg Collector-Emitter Voltage Collector-Base Voltage Emitter-Base Voltage Collector Current - Continuous TA = 25°C unless otherwise noted Parameter Value 40 75 6.0 1.0 -55 to +150 Units V V V A °C Operating and Storage Junction Temperature Range *These ratings are limiting values above which the serviceabilit [ ... ]
N2222A PDF Datasheet Download
