Pack of 5, MDL-1/2 MDL 1/2A MDL 0.5A or MDL-0.5BC 125v/250v Slow Blow Time Delay Glass Fuses, 0.5 Amp (0.5A) MDL0.5A, MDL0.5, 6X30mm (1/4 inch x 1-1/4 inch)