長寬公制(mm)英制(inch)常規功率備註
0.4mm × 0.2mm04021005
0.6mm × 0.3mm060302010.05W(1/20W)
1.0mm × 0.5mm100504020.0625W(1/16W)
1.6mm × 0.8mm160806030.1W(1/10W)
2.0mm × 1.2mm201208050.125W(1/8W)
3.2mm × 1.6mm321612060.25W(1/4W)
3.2mm × 2.5mm322512100.5W(1/2W)也有1/3W
4.5mm x 3.2mm453218120.75W也有0.5W
5.0mm × 2.5mm502520100.75W(3/4W)
6.4mm × 3.2mm643225121W也有2W、3W
常見為英制，0603因為在公制與英制都有，所以需要確認。