SI2302 is a N Channel SOT-23 MOSFETs ROHS manufactured by Yongyutai Electronics. It has a three-ampere current rating and a maximum drain-source voltage of twenty volts. It also has a very low on-state resistance of 45mO at 4.5V, 3A. To top it off, the part has a very low power dissipation of only 1W. It is often used for switching and amplification purposes in electronic circuits.