This part is a kind of semiconductor called A1529.

Function of this product has 2SA1529.

Manufacturers : Sanyo

Image and pinout :

Some of the text within the PDF file :

Ordering number:EN2153A PNP/NPN Epitaxial Planar Silicon Transistors 2SA1529/2SC3923 Switching Applications (with Bias Resistance) Applications · Switching circuits, inverter circuits, interface circuits, driver circuits. Features · On-chip bias resistance : R1=2.2kΩ, R2=2.2kΩ. · Large current capacity : IC=500mA. Package Dimensions unit:mm 2003A [2SA1529/2SC3923] ( ) : 2SA1529 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 Electrical Characteristics at Ta = 25˚C Parameter Symbol Conditions Collector Cutoff Current Emit [ ... ]

A1529 PDF Datasheet Download