The FSMD0805 PTC Resettable Fuse is a circuit protection component designed for use in electronic devices. It is part of the FSMD series from RFE/Fuzetec. This fuse is of size 0805 (2012 Metric), with dimensions of 0.085" L x 0.053" W (2.15mm x 1.35mm) and a thickness of 0.039" (1.00mm). It is a surface mount type, suitable for tape & reel packaging. The FSMD0805 has a maximum voltage rating of 15V and a maximum current rating of 100 A. It has a current hold (Ih) of 100 mA and a current trip (It) of 300 mA, with a time to trip of 1.5 seconds. This fuse has an operating temperature range of -40°C to 85°C. It has an initial resistance (Ri) of 700 mOhms and a post trip resistance (R1) of 6 Ohms. The FSMD0805 is approved by cUL, TUV, and UL, making it a reliable choice for circuit protection in various electronic applications.