This part is a kind of semiconductor called ALJ13003.

Function of this product has TRANSISTOR.

Manufacturers : ALJ

Image and pinout :

Some of the text within the PDF file :

ÉîÛÚÊÐÁú¾§Î¢µç×ÓÏÞ¹«Ë TO-126 Plastic-Encapsulate Transistors ALJ13003 MAXI VCBO VCEO VEBO IC PC Tj Tstg TRANSISTOR(NPN) MAXIMUM RATINGS(Ta=25℃ unless otherwise noted) Parameter Collector-Base Voltage Collector-Emitter Voltage Emitter-Base Voltage Collector Current Collector Power Dissipation Junction Temperature Storag Temperature Value 600 400 9 1.5 50 150 -55～150 Units V V V A W ℃ ℃ ELECTRICAL CHARACTERISTICS(Tamb=25℃ Parameter Collector-base breakdown voltage Collector-emittre breakdown’voltage Emitter-base breakdown voltage Collector cut-off current Emitter cut-off current unless otherwise specjfied): Test conditions MIN 600 400 9 0.1 0.1 15 30 0.9 1.2 2.0 6.0 1 1 V V TYP MAX UNIT V V V ㎂ ㎂ Symbol V(BR)CBO V(BR)CEO V(BR) [ ... ]

ALJ13003 PDF Datasheet Download