Bourns MF-USML series are low ohmic PTC resettable fuses offering thermal protection for applications like Li-ion battery packs, game consoles, PC motherboards, and USB port protection. These fuses feature surface mount packaging for automated assembly, a compact 1210 size, and ultra-low resistance to minimize voltage drop. While currently available, Bourns recommends the enhanced MF-USML/X series for new designs. They are RoHS compliant and halogen-free, ensuring environmental responsibility. The fuses provide reliable overcurrent protection and reset automatically after the fault is removed.