Littelfuse, Inc., founded in 1927 and headquartered in Chicago, Illinois, USA, is a global leader in circuit protection, power control, and sensing technologies. The company serves virtually every market that uses electrical energy, including automotive, industrial equipment, consumer electronics, and commercial vehicles. Its core product portfolio features the industry’s broadest and deepest range of circuit protection devices, such as automotive blade fuses (ATO, Mini, Maxi series), resettable polymeric positive temperature coefficient (PPTC) devices (PolySwitch series), metal oxide varistors (MOVs), transient voltage suppression (TVS) diodes (SPA and SMBJ families), and electrostatic discharge (ESD) protection arrays. Littelfuse also offers a growing lineup of power semiconductors including silicon carbide (SiC) MOSFETs, rectifiers, and gate drivers, alongside electromechanical sensors like reed switches and Hall effect speed sensors for automotive applications. The company has expanded into heavy-duty switches for commercial vehicles, power distribution centers for mining, and generator control and protection equipment for marine applications. With decades of proven technical e