Littelfuse, Inc. is a supplier of circuit protection products for the electronics, automotive and industrial markets. The Company operates through three segments. The Electronics segment provides circuit protection components for overcurrent and overvoltage protection, as well as sensor components and modules to manufacturers of a range of electronic products. The Automotive segment provides circuit protection and sensor products to the worldwide automotive original equipment manufacturers (OEM) and parts distributors of passenger automobiles, trucks, buses, and off-road equipment. The Industrial Segment provides circuit protection products for industrial and commercial customers. The Company also offers electronic reed switches and sensors, automotive sensors for comfort and safety systems and a range of electromechanical and electronic switch and control devices for commercial and specialty vehicles.