The 3AG 12-R is a Bel Fuse product that is a 5 x 20mm Class F, 10A, 1000VAC and DC general purpose cartridge fuse with a fast acting response time. It is a radial leaded, wire-in-cartridge type fuse designed to provide over-current and over-temperature protection in a variety of small electronic and electrical applications. The 3AG 12-R features a compact design and is rated for up to 10 amps at 1,000VAC or DC. It is suitable for use in both industrial and consumer applications, making it a versatile choice. Additionally, the fuse features ceramic body construction and resistance to moisture, dust, and shock.