The MMBT4401 Transistor from Lite-On is an NPN bipolar transistor with a voltage rating of 40V and a continuous collector current of 0.6A. This transistor also has a maximum power dissipation of 300 mW and is manufactured in a SOT23 package. It is suitable for general purpose amplification, switching, or for use in signal mixers, attenuators, pre-amplifiers, drivers, and high-gain, low-noise amplifiers.