This part is a kind of semiconductor called S9012.

Function of this product has PNP General Purpose Transistors.

Manufacturers : Weitron Technology

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Some of the text within the PDF file :

S9012 PNP General Purpose Transistors P b Lead(Pb)-Free TO-92 1. EMITTER 2. BASE 3. COLLECTOR 1 2 3 ABSOLUTE MAXIMUM RATINGS (Ta=25 C) Rating Collector-Emitter Voltage Collector-Base Voltage Emitter-Base Voltage Collector Current Total Device Dissipation TA =25 C Junction Temperature Storage, Temperature Symbol VCEO VCBO VEBO IC PCM Tj Tstg Value -25 -40 -5 -500 0.625 150 -55 to +150 Unit Vdc Vdc Vdc mAdc W C C ELECTRICAL CHARACTERISTICS Characteristics Collector-Emitter Breakdown Voltage (IC= -1.0 mAdc, IB=0) Collector-Base Breakdown Voltage (IC= -100 uAdc, IE=0) Emitter-Base Breakdown Voltage (IE= -100 uAdc, IC=0) Collector Cutoff Current (VCE= -20 Vdc, IB =0) Collector Cutoff Current (VCB= -40 Vdc, IE=0) Emitter Cutoff Current (VEB= -5.0V d c, IC =0) Symbol V [ ... ]

S9012 PDF Datasheet Download