The GMC-100MA is a 5 mm × 20 mm medium time-delay glass tube fuse designed for circuit protection in low-voltage AC applications. It features a rated current of 100 mA with a 250 V AC interrupting rating, a typical DC cold resistance of 35 O, and a maximum voltage drop of 9.4 mV at rated current. The fuse exhibits medium time-delay characteristics with an opening time of 60 minutes maximum at 135% of rated current and 2 minutes maximum at 200% of rated current. Constructed with a glass tube and nickel-plated brass endcap, it is UL Listed (Guide JDYX, File E19180), CSA Certified (Class 1422-01), and RoHS compliant. This fuse is commonly used in consumer electronics, industrial control circuits, and appliances where reliable overcurrent protection and selective coordination are required.