This part is a kind of semiconductor called 2SC5411.

Function of this product has NPN TRIPLE DIFFUSED MESA TYPE (HORIZONTAL DEFLECTION OUTPUT FOR MEDIUM RESOLUTION DISPLAY/ COLOR TV. HIGH SPEED SWITCHING APPLICATIONS).

Manufacturers : Toshiba Semiconductor

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Some of the text within the PDF file :

2SC5411 TOSHIBA TRANSISTOR SILICON NPN TRIPLE DIFFUSED MESA TYPE 2SC5411 HORIZONTAL DEFLECTION OUTPUT FOR HIGH RESOLUTION DISPLAY, COLOR TV HIGH SPEED SWITCHING APPLICATIONS l High Voltage l Low Saturation Voltage l High Speed : VCBO = 1500 V : VCE (sat) = 3 V (Max.) : tf = 0.15 µs (Typ.) Unit: mm l Collector Metal (Fin) is Fully Covered with Mold Resin. MAXIMUM RATINGS (Tc = 25°C) CHARACTERISTIC Collector−Base Voltage Collector−Emitter Voltage Emitter−Base Voltage Collector Current Base Current Collector Power Dissipation Junction Temperature Storage Temperature Range DC Pulse SYMBOL VCBO VCEO VEBO IC ICP IB PC Tj Tstg RATING 1500 600 5 14 28 7 60 150 −55~150 UNIT V V V A A W °C °C JEDEC JEITA TOSHIBA ― ― 2-16E3A Weight: 5.5 g (typ.) ELECTRICAL CHARACTERISTICS (Tc = [ ... ]

2SC5411 PDF Datasheet Download