DC Power Jacks & Plugs Switchcraft DC Power Jacks and Plugs offer a wide variety of options, including straight or right-angle PC mounts, plastic or metal housings, red or black plugs, and a variety of center pin sizes. Switchcraft DC Power Jacks and Plug pins come in diameters of 0.1' (2.5mm), 0.084 (2.1mm), 0.08' (2mm), 0.05' (1.3mm), 0.04' (1mm), and 0.025' (0.65mm). High amperage models are available with up to 11A current rating (carry) with locking or non-locking and sealed or non-sealed versions.