, is a device designed for use in general purpose switching and amplification applications. It has 4 pins, 3 of which are Base/Collector/Emitter, and the other is a Substrate pin. This device offers low current (Ic) max of 100mA, low voltage (Vceo) collector to emitter max of 45V and a power dissipation (PD) max of 625mW. It also has excellent switching times, with a minimum turn-off time of 15ns and a minimum turn-on time of 5 ns. The built-in protection diodes help to prevent accidental damage due to sudden voltage spikes. Other features include low noise, good linearity, and high gain. It is also widely used in a variety of consumer electronics, automotive, and industrial designs.