Co.,LTDThe MMDT4413 with SOT-363 is a BJT (Bipolar Junction Transistor) manufactured by Changjing Electronics Technology Co.,LTD. It is a RoHS compliant component and is designed to provide moderate power amplification and switching applications. It is made up of five pins, 3 single emitter pins, 1 collector pin, and 1 base pin. The MMDT4413 has a maximum collector voltage of 40 volts, a maximum collector current of 400mA, and a maximum power dissipation of 300mW. It also has two typical values: a typical Vceo which is the collector-emitter voltage of 35 volts and a typical hFE which is the DC current gain of 400. This component is well suited for switching and amplification in power applications.