2N4117

The 2N4117 is a silicon NPN planar bipolar junction transistor. It is a general-purpose transistor commonly used in small-signal applications. Key characteristics include a relatively high current gain (hFE) and a low noise figure, making it suitable for audio preamplifiers and RF circuits.

This transistor is typically packaged in a TO-92 case, allowing for easy insertion into printed circuit boards. Its maximum collector current is rated at 200 mA, and its maximum collector-emitter voltage is 30V. The 2N4117 is known for its reliability and consistent performance across a range of operating conditions.

It is often employed as a switch or amplifier in various electronic circuits. The 2N4117 offers a good balance of performance parameters for many hobbyist and commercial electronic designs. Its widespread availability and relatively low cost contribute to its continued use in the electronics industry. Datasheets for the 2N4117 provide detailed specifications regarding its electrical characteristics, such as switching times, cutoff frequencies, and power dissipation limits.