This part is a kind of semiconductor called BU1508DX.

Function of this product has Silicon Diffused Power Transistor.

Manufacturers : NXP

Image and pinout :

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Philips Semiconductors Product specification Silicon Diffused Power Transistor BU1508DX GENERAL DESCRIPTION Enhanced performance, new generation, high-voltage, high-speed switching npn transistor with an integrated damper diode in a plastic full-pack envelope intended for use in horizontal deflection circuits of colour television receivers. Features exceptional tolerance to base drive and collector current load variations resulting in a very low worst case dissipation. QUICK REFERENCE DATA SYMBOL VCESM VCEO IC ICM Ptot VCEsat ICsat VF tf PARAMETER Collector-emitter voltage peak value Collector-emitter voltage (open base) Collector current (DC) Collector current peak value Total power dissipation Collector-emitter saturation voltage Collector saturation current Diode forward voltage Fa [ ... ]

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