This part is a kind of semiconductor called 2SD5702.

Function of this product has Silicon NPN Power Transistors.

Manufacturers : Inchange

Image and pinout :

Some of the text within the PDF file :

Inchange Semiconductor Product Specification Silicon NPN Power Transistors 2SD5702 DESCRIPTION ¡¤ With TO-3P(H)IS package ¡¤ Built-in damper diode ¡¤ High voltage ,high speed APPLICATIONS ¡¤ For color display horizontal deflection output applications PINNING PIN 1 2 3 DESCRIPTION Base Collector Emitter Fig.1 simplified outline (TO-3P(H)IS) and symbol ¡¤ Absolute maximum ratings (Ta=25¡æ ) SYMBOL VCBO VCEO VEBO IC ICM PC Tj Tstg PARAMETER Collector-base voltage Collector-emitter voltage Emitter-base voltage Collector current Collector current-peak Collector power dissipation Junction temperature Storage temperature TC=25¡æ CONDITIONS Open emitter Open base Open collector VALUE 1500 800 6 6 16 60 150 -55~150 ¡æ ¡æ UNIT V V V A A W Inchange Semicon [ ... ]

2SD5702 PDF Datasheet Download