This part is a kind of semiconductor called C3198.

Function of this product has NPN Silicon Epitaxial Planar Transistor.

Manufacturers : SEMTECH

Image and pinout :

Some of the text within the PDF file :

ST 2SC3198 NPN Silicon Epitaxial Planar Transistor for switching and AF amplifier applications. The transistor is subdivided into four groups, O, Y, G and L, according to its DC current gain. On special request, these transistors can be manufactured in different pin configurations. TO-92 Plastic Package Weight approx. 0.19g Absolute Maximum Ratings (Ta = 25 ) Collector Base Voltage Collector Emitter Voltage Emitter Base Voltage Collector Current Base Current Power Dissipation Junction Temperature Storage Temperature Range Symbol VCBO VCEO VEBO IC IB Ptot Tj TS G S P FORM A IS AVAILABLE Value 60 50 5 150 50 500 125 -55 to +125 Unit V V V mA mA mW OC OC SEMTECH ELECTRONICS LTD. (Subsidiary of Semtech International Holdings Limited, a company listed on the Hong Kong Stock Exchange, Sto [ ... ]

C3198 PDF Datasheet Download