Semiconductor This item was sourced on www.MFG.com as one of the items in an RFQ in USA for Semiconductors Buyer is in search of a semiconductor, NT3K42AA. Part Part Number: NT3K42AA Material: Laiton Material Grade: Technical Specifications Category:Semiconductors Dimensions0.0 x 0.0 inch Annual Usage:50000.0 Get quotes online for manufacturing services at MFG.com from machine shops, fabricators, job shops and contract manufacturers. MFG.com connects buyers and suppliers when the buyer has a need and the supplier has the right expertise and capacity. MFG.com analyzes all engineered parts and RFQs for improved manufacturability and to ensure quality and a quick quoting experience. Semiconductors: A material that is neither a good conductor of electricity (like copper) nor a good insulator (like rubber). The most common semiconductor materials are silicon and germanium. These materials are then doped (coated) to create an excess or lack of electrons. Computer chips, both for CPU and memory, are composed of semiconductor materials.