This part is a kind of semiconductor called 2SD2253.

Function of this product has SILICON NPN TRIPLE DIFFUSED POWER.

Manufacturers : Wing Shing Computer Components

Image and pinout :

Some of the text within the PDF file :

2SD2253 Silicon NPN Triple Diffused Power Transistor GENERAL DESCRIPTION HORIZONAL DEFLECTION OUTPUT FOR HIGH RESOLUTION DISPLAY, COLOR TV High Speed Switching Applications QUICK REFERENCE DATA SYMBOL TO-3PM CONDITIONS TYP VCB0 VCEO IC ICM Ptot VCEsat VF tf PARAMETER Collector-Base voltage Collector-emitter voltage (open base) Collector current (DC) Collector current peak value Total power dissipation Collector-emitter saturation voltage Diode forward voltage Fall time - Tmb 25 IC = 5.0A; IB = 1.0A IF = 6.0A ICsat = 6.0A; f = 16KHz 1.6 0.3 MAX 1700 600 6 12 50 5 2.0 0.7 UNIT V V A A W V V s LIMITING VALUES SYMBOL VCB0 VCEO IC ICM IB IBM Ptot Tstg Tj PARAMETER Collector-Base voltage Collector-emitter voltage (open base) Collector current (DC) Collector current peak value Base [ ... ]

2SD2253 PDF Datasheet Download