The MMBT3904W is a NPN Bipolar Transistor in a SOT-323 package, manufactured by Shikues. It is compliant with ROHS standards and is designed for general purpose amplification and switching applications. It features an IC (Collector-Emitter Saturation Voltage) of 25mV at 10mA and (Ic (Collector-Base Cutoff Current)) of 10 Microamperes at 25 Volts. It also has a low Collector-Emitter Voltage at IC = 10mA, making it suitable for low voltage applications. It is an ideal choice for use in consumer electronic, automotive, industrial, telecom, and medical applications. It is widely available in a variety of packages such as SOT-323, SOT-343, SOT-23, SC59, and SOT-453.