The QN6101B3N is an RoHS-compliant N-Channel MOSFET transistor produced by uPI Semiconductor. This part comes in a TO263 package, which is a surface mount package that has three leads, including a drain, source, and gate. This device is designed to provide fast, efficient switching capabilities. It is suitable for a range of applications, including DC to DC converters, switching power supplies, switching load drivers, and power management circuits. This part also has low on-resistance and a low gate threshold voltage. It is rated with a continuous drain current of 14A and has a Vdss of 40V.