Littelfuse, Inc. is a global company that specializes in providing a comprehensive range of circuit protection, power control, and sensing technologies across the Asia-Pacific region, the Americas, and Europe. Its offerings are categorized into three main segments: Electronics Segment: This division features a broad portfolio of components such as various types of fuses (including resettable positive temperature coefficient fuses), electrostatic discharge suppressors, varistors, magnetic sensing devices (based on reed switches), and gas discharge tubes. It also includes an array of discrete semiconductor devices like transient voltage suppressor (TVS) diodes (both individual and in arrays), protection and switching thyristors, metal-oxide-semiconductor field-effect transistors (MOSFETs), and insulated gate bipolar transistors (IGBTs).