This part is a kind of semiconductor called BCP156.

Function of this product has Planar High Performance Transistor.

Manufacturers : SeCoS

Image and pinout :

Some of the text within the PDF file :

BCP156 Elektronische Bauelemente NPN Silicon Planar High Performance Transistor RoHS Compliant Product Description www.DataSheet4U.net SOT-89 The BCP156 is designed for general purpose switching and amplifier applications. Features * 3 Amp Continuous Current * 60 Volt VCEO * Low Saturation Voltage REF. A B C D E F Millimeter Min. Max. 4.4 4.6 4.05 4.25 1.50 1.70 1.30 1.50 2.40 2.60 0.89 1.20 REF. G H I J K L M Millimeter Min. Max. 3.00 REF. 1.50 REF. 0.40 0.52 1.40 1.60 0.35 0.41 5 TYP. 0.70 REF. Absolute Maximum Ratings at TA=25 C Symbol VCBO VCEO VEBO Collector-Base Voltage Collector-Emitter Voltage Emitter-Base Voltage Collector Current (DC) Collector Current (Pulse) Total Power Dissipation Junction and Storage Temperature o o Parameter Value 80 60 5 3 6 1.2 -55~+150 Units [ ... ]

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