The BF422 H 04 is an NPN silicon planar epitaxial transistor designed for use in high-voltage, low-to-medium current applications. It is housed in a TO-92 package and is suitable for use in linear and switching circuits. With its high collector-emitter voltage rating, it is often used in video output stages, CRT display drivers, and audio amplifiers.
Applications:
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High-voltage switching
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Video and audio amplifier stages
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CRT deflection circuits
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Linear regulators
