MF-USMF035-2 is a PTC resettable fuse from Bourns designed for fast-acting circuit protection in surface mount applications. This device features a maximum voltage rating of 6 V, maximum current rating of 40 A, and a hold current of 0.35 A at 23°C, with a trip current of 0.75 A. The fuse exhibits a resistance of 0.200 Ohms at 23°C and a maximum time to trip of 1.3 seconds, with typical tripped power dissipation of 0.20 W. The component is housed in a compact 1210 surface mount package with dimensions of 3.00–3.43 mm (length) × 2.35–2.80 mm (width) × 0.55–0.85 mm (height), and operates reliably across a temperature range of -40°C to +85°C. It is RoHS compliant, halogen-free, AEC-Q200 qualified, and suitable for protecting USB ports, HDMI interfaces, IEEE 1394 ports, and other high-speed data and power distribution circuits in consumer electronics such as game consoles, PC motherboards, and mobile devices.