The NCE30ND09S is a MOSFET SOP-8 RoHS (Restriction of Hazardous Substances) package manufactured by NCE Power. It is provided as a Surface Mount Technology (SMT) part, which means it comes with leads attached to the part, making it suitable for soldering onto circuit boards.The MOSFET is a type of transistor, and is used in electronics for a variety of functions including amplifying, switching, and voltage regulation. The NCE30ND09S has an operating voltage of 30V and a low-power drain of 900mA. It also has an industry-standard gate threshold of 12V, making it suitable for a variety of applications. The NCE30ND09S has been designed to meet stringent RoHS requirements, meaning it is safe for use in the assembly of consumer electronics, living up to the EC regulations on hazardous materials in electrical goods sold in the EU.