This part is a kind of semiconductor called A1607.

Function of this product has 2SA1607.

Manufacturers : Sanyo Semicon Device

Image and pinout :

Some of the text within the PDF file :

Ordering number:EN2479A Features · Fast switching speed. · High gain-bandwidth product. · Low saturation voltage. PNP/NPN Epitaxial Planar Silicon Transistors 2SA1607/2SC4168 High-Speed Switching Applications Package Dimensions unit:mm 2018A [2SA1607/2SC4168] ( ) : 2SA1607 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) Base Current Collector Dissipation Junction Temperature Storage Temperature Symbol VCBO VCEO VEBO IC ICP IB PC Tj Tstg Electrical Characteristics at Ta = 25˚C Conditions Parameter Collector Cutoff Current Emitter Cutoff Current DC Current Gain Symbol Conditions ICBO IEBO hFE VCB=(–)30V, IE=0 VEB=(–)4V, IC=0 VCE=(–)1V [ ... ]

A1607 PDF Datasheet Download