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BF257 Datasheet(PDF) 1 Page - STMicroelectronics |
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BF257 Datasheet(HTML) 1 Page - STMicroelectronics |
1 / 5 page BF257 BF258-BF259 October 1988 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. ABSOLUTE MAXIMUM RATINGS Val ue Symbol Parameter BF 257 BF258 BF25 9 Unit VCBO Collector-base Voltage (IE = 0) 160 250 300 V VCEO Collector-emitter Voltage (IB = 0) 160 250 300 V VEBO Emitter-base Voltage (IC =0) 5 V I C Collector Current 100 mA I CM Collector Peak Current 200 mA Ptot Total Power Dissipation at Tamb ≤ 50 °C5 W T stg Storage Temperature – 55 to 200 °C T j Junction Temperature 200 °C INTERNAL SCHEMATIC DIAGRAM TO-39 1/5 |
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