Bourns MF-USML series are low ohmic PTC resettable fuses designed to provide overcurrent protection in a compact form factor. These fuses offer surface mount packaging for automated assembly, a small footprint ideal for space-constrained mobile applications, and ultra-low resistance to minimize voltage drop. They are RoHS compliant and halogen-free, making them environmentally friendly. Applications include thermal protection for Li-ion and polymer battery packs, game consoles, PC motherboards, USB port protection, mobile phones, and digital cameras. While currently available, Bourns recommends the enhanced MF-USML/X series for new designs.