The BC547 is a widely used NPN bipolar junction transistor (BJT) designed for general-purpose low-power switching and amplification applications. It is commonly found in analog circuits, signal processing, and small electronic projects.
Key Features:
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Type: NPN
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Collector-Emitter Voltage (Vce): 45V
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Collector Current (Ic): 100mA max
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Power Dissipation: 500mW
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DC Current Gain (hFE): 110 to 800 (varies by subtype: A, B, C)
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Package: TO-92 (compact and easy to use)
Applications:
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Signal amplification
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Low-power switching
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Audio amplifier stages
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DIY electronics and hobby projects
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Sensor interfacing and control circuits
The BC547 is valued for its reliability, availability, and versatility, making it a staple component in both educational and practical electronics.
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