This part is a kind of semiconductor called BDX18.

Function of this product has PNP SILICON TRANSISTOR EPITAXIAL BASE.

Manufacturers : Comset Semiconductors

Image and pinout :

Some of the text within the PDF file :

BDX18 – BDX18N PNP SILICON TRANSISTOR EPITAXIAL BASE LF Large Signal Power Amplification High Current Switching Thermal Fatigue Inspection Compliance to RoHS Applications : • • • • Series and shunt regulators High Fidelity Amplifiers Power-switching circuits Solenoid drivers ABSOLUTE MAXIMUM RATINGS Symbol VCEO VCER VEBO VCBO VCEX IC IB PT TJ TS Collector-Emitter Voltage Collector-Emitter Voltage RBE=100Ω Ratings www.DataSheet.net/ Value BDX18 BDX18N BDX18 BDX18N BDX18 BDX18N BDX18 BDX18N BDX18 BDX18N BDX18 BDX18N BDX18 BDX18N -60 -70 -65 -7 -100 -70 -90 -70 -15 -7 117 -65 to +200 Unit V V V V V A A W °C Collector-Emitter Voltage Emitter-Base Voltage Collector-Emitter Voltage Collector Current Base Current Power Dissipation Junction Temperature Storage Temperature @ TC = [ ... ]

BDX18 PDF Datasheet Download