The SK3401 MOSFET (Metal Oxide Semiconductor Field Effect Transistor) with P Trench 30V 4.2A 1.3V@ 250uA 55mO @ 4.2A,10V SOT-23 (SOT-23-3) is a RoHS-compliant device manufactured by Shikues. It is a three-pin, SOT-23-3, surface mount device with 30 volts maximum drain-source voltage and 4.2 amps drain current. It has a maximum gate-source voltage of 1.3 volts and gate-source leakage current of 250 micro-amps. It has a 55 milli-ohm on-state resistance at 4.2 amps and 10 volts. This device is typically used for power switching applications such as high-side switching, motor control, and synchronous rectification in the consumer, information technology, and industrial automation markets.