The RF3313-000 is a radial-leaded, fast-blow fuse from Littelfuse. It is a 5X20 mm size, with a voltage rating of 125VAC/150VDC. The resistance is 0.2 ohms, and the current rating is 1A. It is an industrial grade device, and can be used in many applications such as general industrial electronics, appliance, telecommunications, audio/video equipment, and motor control. It is RoHS compliant, and salt spray tested for greater corrosion resistance.