This part is a kind of semiconductor called 2SB1198K.

Function of this product has PNP Silicon General Purpose Transistor.

Manufacturers : SeCoS

Image and pinout :

Some of the text within the PDF file :

2SB1198K PNP Silicon Elektronische Bauelemente RoHS Compliant Product A suffix of "-C" specifies halogen & lead-free A L 3 Top View General Purpose Transistor SC-59 Dim A B C D D Min 2.70 1.30 1.00 0.35 1.70 0.00 0.10 0.20 1.25 2.25 Max 3.10 1.70 1.30 0.50 2.30 0.10 0.26 0.60 1.65 3.00 S FEATURES 2 B 1 G H C J K G Power dissipation : 0.2 W PCM Collector current ICM : -0.5 A * Collector-base voltage V V(BR)CBO : -80 Operating and storage junction temperature range TJ Tstg: -55 to +150 J K L S H 3 2 1 All Dimension in mm COLLECTOR 3 2 BASE 1 EMITTER ELECTRICAL CHARACTERISTICS Parameter Collector-base breakdown voltage Collector-emitter breakdown voltage Emitter-base breakdown voltage Collector cut-off current Emitter cut-off current DC current gain Collector-emitter saturati [ ... ]

2SB1198K PDF Datasheet Download