The Bourns MF-USML series represents a line of low ohmic PTC resettable fuses, offering a compact and reliable solution for overcurrent protection. These fuses are designed for surface mount applications, making them ideal for space-constrained mobile devices and electronics. They provide thermal protection for Li-ion and polymer battery packs, game consoles, PC motherboards, and USB ports. The MF-USML series is characterized by its ultra-low resistance, small footprint, and RoHS compliance, ensuring compatibility with modern electronic designs. While the series is currently available, Bourns recommends the enhanced MF-USML/X series for new designs.