ST bf257-bf258-bf259 free download

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BF257 BF258-BF259 HIGH VOLTAGE VIDEO AMPLIFIERS DESCRIPTION The BF257, BF258 and BF259 are silicon planar epitaxial NPN transistors in Jedec TO-39 metal case. They are particularly designed for videooutput stages in CTV and MTV sets, class A audio output stages and drivers for horizontal deflection circuits. TO-39 INTERNAL SCHEMATIC DIAGRAM ABSOLUTE MAXIMUM RATINGS Value Symbol Parameter Unit BF 257 BF258 BF25 9 V CBO Collector-base Voltage (I E = 0) 160 250 300 V V CEO Collector-emitter Voltage (I B = 0) 160 250 300 V V E BO Emitter-base Voltage (I C = 0) 5 V IC Collector Current 100 mA I CM Collector Peak Current 200 mA Pt o t Total Power Dissipation at T amb 50