This part is a kind of semiconductor called 2SB1386.

Function of this product has Low Frequency Transistor(-20V/-5A).

Manufacturers : Rohm

Image and pinout :

Some of the text within the PDF file :

Transistors Low Frequency Transistor (*20V,*5A) 2SB1386 / 2SB1412 / 2SB1326 / 2SB1436 FFeatures 1) Low VCE(sat). VCE(sat) = *0.35V (Typ.) (IC / IB = *4A / *0.1A) 2) Excellent DC current gain characteristics. 3) Complements the 2SD2098 / 2SD2118 / 2SD2097 / 2SD2166. FStructure Epitaxial planar type PNP silicon transistor FExternal dimensions (Units: mm) (96-141-B204) 211 Transistors FAbsolute maximum ratings (Ta = 25_C) 2SB1386 / 2SB1412 / 2SB1326 / 2SB1436 FElectrical characteristics (Ta = 25_C) 212 Transistors FPackaging specifications and hFE 2SB1386 / 2SB1412 / 2SB1326 / 2SB1436 hFE values are classified as follows: FElectrical characteristic curves 213 Transistors 2SB1386 / 2SB1412 / 2SB1326 / 2SB1436 214 [ ... ]

2SB1386 PDF Datasheet Download