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BU406D BU407D SILICON NPN SWITCHING TRANSISTORS SGS-THOMSON PREFERRED SALESTYPES NPN TRANSISTOR VERY HIGH SWITCHING SPEED APPLICATIONS HORIZONTAL DEFLECTION FOR MONOCHROME TV 3 2 1 TO-220 DESCRIPTION The BU406D and BU407D are silicon planar epitaxial NPN transistors with integrated damper diode, in Jedec TO-220 plastic package. They are fast switching, devices for use in horizontal INTERNAL SCHEMATIC DIAGRAM deflection output stages of MTV receivers with 110o CRT. The BU406D is primarily intended for large screen, while the BU407D is for medium and small screens ABSOLUTE MAXIMUM RATINGS Symbol Parameter Value Unit BU406D BU407D VCBO Collector-Base Voltage (IE = 0) 400 330 V VCEV Collector-Emitter Voltage (VBE = - 1.5V) 400 330 V VEBO Emitter-Base Vol... See More ⇒