Littelfuse's Low Rho Surface Mount PPTC devices (Polymer Positive Temperature Coefficient) are designed for overcurrent protection in applications requiring ultra-low internal resistance, voltage drop, and automatic resettable protection. This series allows for a higher hold current in a smaller footprint compared to standard PPTCs. They are UL recognized and TUV approved, offering reliable protection with a maximum fault current of 50A. Available in sizes from 0402 to 2920, these devices are suitable for LCD/LED HDTVs, USB peripherals, computer peripherals, Li-ion/Li-Polymer battery packs, digital cameras, smartphones, hard disk drives, tablet PCs, game consoles, and e-readers.