BC807-25

The BC807-25 is a general-purpose NPN bipolar junction transistor (BJT) manufactured by NXP Semiconductors. It is designed for use in a variety of applications, including switching and amplification in low-power electronic circuits.

Key Features:

1. Type: NPN Transistor
2. Package: The BC807-25 is typically available in a TO-92 package, which is a cylindrical plastic housing with three leads. This package is compact and suitable for through-hole mounting on printed circuit boards (PCBs).
3. Maximum Collector Current (Ic): The transistor can handle a maximum collector current of 500 mA, making it suitable for low to moderate power applications.
4. Collector-Emitter Voltage (Vce): The maximum collector-emitter voltage is rated at 45V, allowing it to operate in a range of voltage applications without risk of breakdown.
5. Gain (hFE): The transistor has a current gain (hFE) range of approximately 100 to 800, depending on the specific operating conditions. This high gain allows for effective amplification of input signals.
6. Transition Frequency (fT): The transition frequency is typically around 150 MHz, indicating the frequency range over which the transistor can effectively operate.
7. Thermal Characteristics: The BC807-25 has a maximum junction temperature of 150°C, which provides a good thermal margin for various applications.
8. Applications: It is commonly used in audio amplifiers, signal processing, and as a switch in low-power applications. Its versatility makes it suitable for consumer electronics, automotive applications, and industrial control systems.

Electrical Characteristics:

• Base-Emitter Voltage (Vbe): Typically around 0.7V when in the active region.
• Collector-Base Voltage (Vcb): Maximum of 45V.
• Power Dissipation (Pd): The maximum power dissipation is around 500 mW, which is important for thermal management in circuit design.

Usage Considerations:

When designing circuits with the BC807-25, it is essential to consider the thermal management and ensure that the transistor operates within its specified limits to avoid damage. Proper biasing is also crucial to achieve the desired performance, especially in amplification applications.

Conclusion:

The BC807-25 from NXP Semiconductors is a reliable and versatile NPN transistor suitable for a wide range of electronic applications. Its combination of moderate current handling, high gain, and robust voltage ratings makes it a popular choice among engineers and hobbyists alike.