This part is a kind of semiconductor called A1248.

Function of this product has 2SA1248.

Manufacturers : Sanyo

Image and pinout :

Some of the text within the PDF file :

Ordering number:ENN1032B PNP/NPN Epitaxial Planar Silicon Transistors 2SA1248/2SC3116 160V/700mA Switching Applications Uses · Color TV sound output, converters, inverters. Features · High breakdown voltage. · Large current capacity. · Using MBIT process Package Dimensions unit:mm 2009B [2SA1248/2SC3116] 8.0 4.0 2.7 1.5 3.0 7.0 11.0 1.6 0.8 0.8 0.6 3.0 0.5 15.5 ( ) : 2SA1248 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 Symbol VCBO VCEO VEBO IC ICP Pc Junction Temperature Storage Temperature Tj Tstg Electrical Characteristics at Ta = 25˚C Tc=25˚C Conditions Parameter Symbol Conditions Collector Cut [ ... ]

A1248 PDF Datasheet Download