This part is a kind of semiconductor called 2SB1370.

Function of this product has PNP Transistors.

Manufacturers : LGE

Image and pinout :

Some of the text within the PDF file :

2SB1370(PNP) TO-220F Bipolar Transistors TO-220F 1. BASE 2. COLLECTOR 123 3. EMITTE Features Breakdown Voltage High Reverse Cut-off Current Small Saturation Voltage Low Collector Power dissipation PCM : 2 W (Tamb=25℃) 30 W (Tcase=25℃) MAXIMUM RATINGS (TA=25℃ unless otherwise noted) Symbol Parameter VCBO Collector-Base Voltage VCEO Collector-Emitter Voltage VEBO Emitter-Base Voltage IC Collector Current -Continuous TJ Junction temperature Tstg Storage temperature Dimensions in inches and (millimeters) Value -60 -60 -5 -3 150 -55-150 Units V V V A ℃ ℃ ELECTRICAL CHARACTERISTICS (Tamb=25℃ unless otherwise specified) Parameter Symbol Test conditions MIN TYP MAX UNIT Collector-base breakdown voltage V(BR)CBO IC=-50μA, IE=0 -60 V Collector-emitter breakd [ ... ]

2SB1370 PDF Datasheet Download