5 pcs. 5x20mm 3.15A Slow-Blow Fuse T3.15a 250v Ceramic 5x20mm Sold in sets of 5. If you add 20 to cart, that will be a box (100 pcs.) Series: 5x20mm Rated Current (amp): 3.15A Blow Characteristic: Slow Blow (Time Delay) Body Diameter: 5mm (3/16 in) Body Length: 20mm (3/4 in) Part Type: Electric Ceramic Fuse Rated Voltage: 250v, 250 volts (also replaces 125v) Terminal Shape: End Cap Certifications: ROHS, CE Cross List: 5x20 3.15A, 3.15T 3.15A, BK- 3.15 R T3.15a 250v Blowing Time (Slow Blow): 30 min Max @ 210% of rating 600 msec Min, 10 sec Max @ 275% of rating 150 msec Min, 3 sec Max @ 400% of rating 20 msec Min, 300 msec Max @ 1000% of rating