BC817-40-7 NPN Bipolar Transistor

The BC817-40-7 is a high-performance NPN bipolar (BJT) transistor from Diodes Incorporated, known for its efficiency and reliability in a wide array of electronic applications. This small-signal transistor is particularly suitable for use in general-purpose amplification and switching applications.

Key Features

• Transistor Type: NPN - This allows for high-speed switching and amplification of electronic signals.
• Voltage Ratings: It features a collector-emitter voltage (VCEO) of 45V, and a collector-base voltage (VCBO) of 50V, making it suitable for moderate voltage applications.
• Current Handling: The BC817-40-7 can handle a continuous collector current (IC) of up to 500mA, making it capable of driving moderate loads.
• Power Dissipation: With a power dissipation of 500mW, it can sustain moderate thermal conditions without performance degradation.
• High Gain Bandwidth Product: It offers a transition frequency (fT) of 100MHz, which is ideal for high-frequency operations.
• Gain: The device has a high DC current gain (hFE) range of 250 to 600, providing a significant amplification factor for signals.

Package and Mounting

The BC817-40-7 comes in a SOT-23 package, which is a small footprint surface-mount package. This makes it an excellent choice for compact PCB designs and applications where space is at a premium. Its surface-mount design simplifies the assembly process and is well-suited for automated manufacturing lines.

Applications

Its versatile characteristics make the BC817-40-7 suitable for a broad range of applications, including:

• Driver stages in hi-fi amplifiers and television circuits
• Switching loads in consumer electronics
• Signal processing in telecommunication devices
• Control circuits in embedded systems
• Portable and battery-powered equipment due to its low power consumption

The BC817-40-7 from Diodes Incorporated is a testament to the company's commitment to providing high-quality semiconductor products. With its robust performance and compact design, it is an essential component for designers looking to enhance the efficiency and reliability of their electronic circuits.