BC817,215

The BC817,215 is a versatile NPN bipolar junction transistor (BJT) manufactured by Nexperia, designed for general-purpose switching and amplification applications. It is part of the BC817 series, which is widely used in various electronic circuits due to its reliability and performance characteristics.

Key Features:

1. Type: NPN Transistor
2. Package: The BC817,215 is typically available in a compact SOT-23 package, which is a surface-mount device (SMD) that allows for efficient use of PCB space.
3. Maximum Collector Current (Ic): The transistor can handle a maximum collector current of up to 500 mA, making it suitable for driving small loads.
4. Collector-Emitter Voltage (Vce): It has a maximum collector-emitter voltage rating of 45 V, allowing it to operate in a variety of voltage environments.
5. Gain (hFE): The transistor features a current gain (hFE) range of approximately 100 to 800, depending on the collector current, which makes it effective for amplification purposes.
6. Transition Frequency (fT): The BC817,215 has a transition frequency of around 100 MHz, indicating its capability for high-speed switching applications.
7. Thermal Characteristics: It has a maximum junction temperature of 150°C, which provides a good thermal margin for operation in various environments.

Applications:

The BC817,215 is commonly used in:

• Switching Applications: It can be used to control loads such as relays, motors, and LEDs.
• Amplification: Suitable for audio and radio frequency amplification circuits.
• Signal Processing: Used in various signal processing applications due to its high gain and frequency response.
• Level Shifting: It can be employed in level shifting applications where different voltage levels need to be interfaced.

Electrical Characteristics:

• Base-Emitter Voltage (Vbe): Typically around 0.7 V when in the active region.
• Power Dissipation (Ptot): The maximum power dissipation is around 500 mW, which is important for thermal management in circuit design.

Conclusion:

The BC817,215 from Nexperia is a reliable and efficient NPN transistor that is well-suited for a wide range of electronic applications. Its combination of compact size, high current handling capability, and good thermal performance makes it a popular choice among engineers and hobbyists alike. Whether used in simple switching circuits or more complex amplification tasks, the BC817,215 provides a robust solution for various electronic design needs.