DIODES Incorporated Single Bipolar Transistors FMMT411QTD

The FMMT411QTD is an NPN silicon avalanche transistor in SOT23 package, designed for high-current pulse applications such as laser diode drivers and fast edge generators. It supports collector-emitter voltages up to 15V and collector-base voltages up to 80V, with a continuous collector current of 900 mA and power dissipation of 800 mW. The device is AEC-Q101 qualified, RoHS compliant, and features a thermal resistance of 150 °C/W. It operates from -55°C to +150°C and has a typical avalanche current of 35A. The SOT23 package has dimensions of 3.04 mm × 2.64 mm × 1.12 mm and is rated UL 94 V-0. Operating in avalanche mode, it is suited for pulsed applications with low inductance and fast switching characteristics.