This part is a kind of semiconductor called KTB1151.

Function of this product has EPITAXIAL PLANAR PNP TRANSISTOR.

Manufacturers : KEC

Image and pinout :

Some of the text within the PDF file :

SEMICONDUCTOR TECHNICAL DATA LOW COLLECTOR SATURATION VOLTAGE LARGE CURRENT FEATURES High Power Dissipation : PC=1.5W(Ta=25 Complementary to KTD1691. ) MAXIMUM RATING (Ta=25 ) CHARACTERISTIC SYMBOL Collector-Base Voltage Collector-Emitter Voltage Emitter-Base Voltage Collector Current DC Pulse * Base Current VCBO VCEO VEBO IC ICP IB Collector Power Dissipation Ta=25 Tc=25 PC Junction Temperature Tj Storage Temperature Range Tstg * PW 10ms, Duty Cycle 50% RATING -60 -60 -7 -5 -8 -1 1.5 20 150 -55 150 UNIT V V V A A W KTB1151 EPITAXIAL PLANAR PNP TRANSISTOR A B C H J K D E F G L M N O P 12 3 1. EMITTER 2. COLLECTOR 3. BASE DIM A B C D E F G H J K L M N O P MILLIMETERS 8.3 MAX 5.8 0.7 Φ3.2+_ 0.1 3.5 11.0 +_ 0.3 2.9 MAX 1.0 MAX 1.9 MAX 0.75 +_ 0.15 15.50+_ 0.5 [ ... ]

KTB1151 PDF Datasheet Download