The GMA-600-R is a fast-acting, low breaking capacity glass tube fuse designed for circuit protection in electronic and electrical applications. It is rated at 600 mA with a 250 Vac voltage rating and features a 5 mm × 20 mm physical size with nickel-plated brass endcaps and a typical DC cold resistance of 0.256 O. The fuse has an interrupting rating of 35 amps at 250 Vac and 10,000 amps at 125 Vac, with a typical pre-arc I²t of 0.32 Vac and a maximum voltage drop of 200 mV at rated current. It meets UL, CSA, and PSE approval standards and is designed to UL/CSA 248-14, making it suitable for use in power supplies, consumer electronics, industrial control systems, and other applications requiring reliable overcurrent protection.