This part is a kind of semiconductor called D5071.

Function of this product has KSD5071.

Manufacturers : Fairchild Semiconductor

Image and pinout :

Some of the text within the PDF file :

KSD5071 NPN TRIPLE DIFFUSED PLANAR SILICON TRANSISTOR TO-3PF COLOR TV HORIZONTAL OUTPUT APPLICATION (DAMPER DIODE BUILT IN) • High Collector-Base Voltage (VCBO=1500V) • High Switching Speed (tF. max=0.4µs) ABSOLUTE MAXIMUM RATING Characteristic Collector Base Voltage Collector Emitter Voltage Emitter Base Voltage Collector Current (DC) Collector Current (Pulse) Collector Dissipation (TC=25°C) Junction Temperature Storage Temperature Symbol VCBO VCEO VEBO IC IC PC TJ T STG Rating 1500 800 6 3.5 10 50 150 -55 ~ 150 Unit V V V A A W °C °C 1.Base 2.Collector 3.Emitter ELECTRICAL CHARACTERISTICS (TC=25°C) Characteristic Symbol ICBO IEBO hFE VCE(sat) VBE(sat) fT VF tF Test Condition VCB = 800V, IE = 0 VEB = 4V, IC = 0 VCE = 5V, IC = 0.5A IC = 2.5A, IB = 0.8A IC = [ ... ]

D5071 PDF Datasheet Download