This part is a kind of semiconductor called D1459.

Function of this product has 2SD1459.

Manufacturers : Sanyo

Image and pinout :

Some of the text within the PDF file :

Ordering number:EN1256C PNP/NPN Planar Silicon Transistors 2SB1037/2SD1459 Color TV Vertical Output, Sound Output Applications Features · High allowable collector dissipation (PC=2W). · Wide ASO. Package Dimensions unit:mm 2010C [2SB1037/2SD1459] ( ) : 2SB1037 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 Cutoff Current ICBO VCB=(–)120V Emitter Cutoff Current IEBO VEB=(–)5V DC Current Gain hFE VCE=(–)5V, IC=(–)0.3A Gain [ ... ]

D1459 PDF Datasheet Download