Littelfuse Inc.

Supplies both overcurrent and overvoltage circuit-protection products. The company's overcurrent-protection solutions include fuses, resettable PTCs, and associated hardware. Overvoltage product offerings include TVS avalanche diodes; USB port termination devices; Surgector transient voltage suppressors; SCR/diode arrays; multilayer surge arrays; dual-element metal-oxide varistors; radial, axial, and industrial metal-oxide varistors and multilayer varistor transient suppressors; as well as the new PulseGuard ESD suppressor product line.