2SC4554 is a NPN silicon epitaxial transistor manufactured by NEC. It is designed for use in audio frequency power amplifiers and switching applications. Description: The 2SC4554 is a NPN silicon epitaxial transistor with a high voltage rating of up to 200V. It has a low collector-emitter saturation voltage and a high current gain. Features: - High voltage rating of up to 200V - Low collector-emitter saturation voltage - High current gain - Low noise - High frequency operation Applications: - Audio frequency power amplifiers - Switching applications - High voltage circuits(For reference only)
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