Transistor digital, DTC143XKAT146, NPN 100 mA 50 V SOT-346, 3 pines, Simple

Digital Transistors, ROHM Semiconductor

Resistor-equipped bipolar transistors, also known as “Digital Transistors” or “Bias Resistor Transistors”, incorporating one or two integrated resistors. A single series input resistor, or a potential divider of two resistors, allows these devices to be directly driven from digital sources. Both single and dual transistor versions are available.