Description

The BC547 is a small-signal NPN transistor designed mainly for handling weak electrical signals. It is commonly used in audio pre-amplifiers, sensor circuits, and low-current switching applications. Because of its low noise and consistent response, it is preferred in circuits where signal clarity is important.

This transistor comes in a compact TO-92 package, making it suitable for dense PCB layouts and educational electronics projects.

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Features

• Optimized for small-signal amplification
• Low noise performance for audio circuits
• Suitable for sensor and logic-level switching
• Compact TO-92 body saves PCB space
• Consistent gain for stable circuit behavior
• Widely used in learning and testing circuits

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Specifications

• Part Number: BC547
• Transistor Type: NPN
• Application Type: Small-signal
• Maximum Collector Current: 100 mA
• Maximum Collector-Emitter Voltage: 45 V
• Power Dissipation: 500 mW
• DC Current Gain (hFE): 110 – 800
• Package: TO-92

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Package Includes

• 1 × BC547 NPN TO-92 Transistor