SemiconductorThe AO3402A is a MOSFET N Trench 30V 4A 1.4V @ 250uA 55 mΩ @ 4A,10V SOT-23 RoHS manufactured by Youtai Semiconductor. It is a low on-resistance tolerance field effect transistor and is suitable for use in cellular phones, battery-driven electronic systems, and consumer/office audio systems. This component has a maximum voltage rating of 30V, a maximum current rating of 4A, a maximum gate-source breakdown voltage of 1.4V, and a maximum drain-source breakdown voltage of 10V. It has an on-resistance tolerance of 55mO@4A and a gate-source threshold voltage of 250uA. It is RoHS compliant and is available in a SOT-23 package.