This part is a kind of semiconductor called TIP102.
Function of this product has Monolithic Construction.
Manufacturers : SemiHow
Image and pinout :
Some of the text within the PDF file :
TIP100/101/102 TIP100/101/102 ◎ SEMIHOW REV.A0,Oct 2007 TIP100/101/102 TIP100/101/102 Monolithic Construction With Built In Base-Emitter Shunt Resistors - High DC Current Gain : hFE=1000 @ VCE=4V, IC=3A (Min.) - Collector-Emitter Sustaining Voltage - Low Collector-Emitter Saturation Voltage - Industrial Use - Complementary to TIP105/106/107 Absolute Maximum Ratings Ta=25℃ unless otherwise noted CHARACTERISTICS SYMBOL RATING UNIT Collector-Base Voltage : TIP100 : TIP101 : TIP102 VCBO 60 80 100 V V V Collector-Emitter Voltage : TIP100 : TIP101 : TIP102 VCEO 60 80 100 V V V Emitter-Base Voltage Collector Current(DC) Collector Current(Pulse) Base Current Collector Dissipation(Ta=25℃) Collector Dissipation(Tc=25℃) Junction Temperature Storage Temperature VEBO IC ICP IB [ ... ]