The FSMD0805 is a circuit protection PTC resettable fuse from RFE/Fuzetec. It is designed for surface mount applications and comes in a tape & reel package. The dimensions of the fuse are 0.085" L x 0.053" W (2.15mm x 1.35mm), with a maximum thickness of 0.039" (1.00mm). The FSMD0805 has a voltage rating of 9V and a maximum current rating of 100 A. It has a hold current of 200 mA and a trip current of 500 mA, with a time to trip of 20 ms. The fuse has a resistance of 400 mOhms (initial) and 3.5 Ohms (post-trip). It operates in a temperature range of -40°C to 85°C and is approved by cUL, TUV, and UL. The FSMD0805 is an active product in the circuit protection category.