BC817-40

The BC817-40 performs well in common applications, such as switching and amplification. This general-purpose NPN power transistor finds its applications in a variety of devices including consumer electronics, industrial control systems, and power circuits due to its universal applicability and efficient functioning. The BC817-40 is packaged in a TO-92, a small and space-saving design perfect for both compact and larger circuit boards.

Main Features
Moderate Current Handling: Up to 800mA continuous collector current; An ideal low-power to medium-power NPN transistor, this high current rating probably ensures control of small loads without overheating or excessive power loss.
Voltage Rating: Maximm collector-emitter voltage (V_CEO) of 40V; It can therefore be used in circuit applications on a more moderate voltages’ region, that is reliable from either signal or power system applications.
High Gain: The device has high current gain (hFE) ranging in value from 110 to 800; it therefore makes an efficient signal amplifier to weak signals and thus useful for audio applications, signal modulation, and other low-power electronic designs in which signal strength boosting is required.
Low Saturation Voltage: It has a low saturation voltage meaning less power loss in switching. Significant for applications where efficient use is made with lower heat dissipation.
Fast switching speed: This transistor is well suited to fast switching applications like digital circuits, pulse width modulation (PWM), and relay driving, where on-off circuits must have rapid transitions between their states.

Why Choose BC817-40?
The BC817-40 is a reliable and versatile choice for a variety of general-purpose applications. Whether used in signal amplification, switching, or small motor control, its combination of high gain, moderate current handling, and efficient operation makes it a popular component in many electronic designs.