SF-0603S063-2 is a slow blow thin film surface mount fuse designed for overcurrent protection in compact electronic applications. It features a 0.63 A rated current with a typical resistance of 150 mO and an I²t rating of 0.017 A²s, providing reliable protection with minimal voltage drop. The fuse operates at a rated voltage of DC 50 V with a breaking capacity of 50 A, and is housed in a miniature 1608 (EIA 0603) footprint measuring 1.6 × 0.8 mm, enabling automated surface mount assembly. The device is UL listed (UL 248-14), RoHS compliant, and halogen free, making it suitable for portable memory, LCD monitors, disk drives, digital cameras, cell phones, and rechargeable battery packs where space and reliability are critical.