GBB-1-1/4 is a very fast-acting ceramic tube fuse from the GBB Series designed for overcurrent protection in electronic circuits. It features a voltage rating of 250Vac and 125Vdc, with AC interrupting ratings of 200A at 250Vac and 10,000A at 125Vac, and a DC interrupting rating of 10,000A at 125Vdc. The fuse has a physical size of 1/4" x 1-1/4" (6.35 x 31.75mm), ceramic tube construction with nickel-plated brass endcaps, and a typical DC cold resistance of 0.179O with a typical voltage drop of 0.2497V. Optional axial leads are available, and the product is UL Recognized to standard 248-14 and CSA Component Accepted. This fuse is ideal for applications requiring rapid circuit interruption to protect sensitive electronic equipment.