This part is a kind of semiconductor called 2SB985.

Function of this product has Large-Current Driving Applications.

Manufacturers : Sanyo Semicon Device

Image and pinout :

Some of the text within the PDF file :

Ordering number:1244C PNP/NPN Epitaxial Planar Silicon Transistors 2SB985/2SD1347 Large-Current Driving Applications Applcations · Power supplies, relay drivers, lamp drivers, electrical equipment. Package Dimensions unit:mm 2006A [2SB985/2SD1347] Features · Adoption of FBET, MBIT processes. · Low saturation voltage. · Large current capacity and wide ASO. ( ) : 2SB985 EIAJ : SC-51 SANYO : MP Specifications Absolute Maximum Ratings at Ta = 25˚C Parameter Collector-to-Base Voltage Collector-to-Emitter Voltage Emitter-to-Base Voltage Collector Current Collector Current (Pulse) Collector Dissipation Junction Temperature Storage Temperature Symbol VCBO VCEO VEBO IC ICP PC Tj Tstg Conditions B : Base C : Collector E : Emitter Ratings (–)60 (–)50 (–)6 (–)3 (–)6 1 150 –55 [ ... ]

2SB985 PDF Datasheet Download