The BF423 is a silicon NPN planar transistor manufactured by NXP Semiconductors, designed primarily for high-voltage, low-current applications. It is commonly used in television receivers, video equipment, and other circuits requiring high breakdown voltage and moderate switching speeds.
Applications:
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High-voltage switching
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Video and RF amplifier stages
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CRT driver stages in older TV sets
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General-purpose high-voltage NPN transistor applications
