This part is a kind of semiconductor called 2SB1198K.

Function of this product has Low-frequency Transistor(-80V/ -0.5A).

Manufacturers : Rohm

Image and pinout :

Some of the text within the PDF file :

Transistors Low-frequency Transistor (*80V, *0.5A) 2SB1198K FFeatures 1) Low VCE(sat). VCE(sat) = *0.2V (Typ.) (IC / IB = *0.5A / *50mA) 2) High breakdown voltage. BVCEO = *80V 3) Complements the 2SD1782K. FStructure Epitaxial planar type PNP silicon transistor FExternal dimensions (Unit:s mm) FAbsolute maximum ratings (Ta = 25_C) FElectrical characteristics (Ta = 25_C) (96-136-B93) 229 Transistors FPackaging specifications and hFE hFE values are classified as follows : 2SB1198K FElectrical characteristic curves 230 Transistors 2SB1198K 231 [ ... ]

2SB1198K PDF Datasheet Download