This part is a kind of semiconductor called A1701.

Function of this product has 2SA1701.

Manufacturers : Sanyo

Image and pinout :

Some of the text within the PDF file :

Ordering number:EN3022 PNP/NPN Epitaxial Planar Silicon Transistors 2SA1701/2SC4481 Low-Frequency General-Purpose Amplifier Applications Applications · AF power amplifier, medium-speed switching, smallsized motor driver applications. Features · Large current capacity. · Low collector-to-emitter saturation voltage. Package Dimensions unit:mm 2064 [2SA1701/2SC4481] ( ) : 2SA1701 Specifications Absolute Maximum Ratings at Ta = 25˚C Parameter Symbol Collector-to-Base Voltage Collector-to-Emitter Voltage Emitter-to-Base Voltage Collector Current Collector Current (Pulse) Collector Dissipation Junction Temperature VCBO VCEO VEBO IC ICP PC Tj Storage Temperature Tstg Electrical Characteristics at Ta = 25˚C Conditions Parameter Collector Cutoff Current Emitter Cutoff Current DC [ ... ]

A1701 PDF Datasheet Download