Hi,
I'm looking to buy some wires and THT connectors for my power supply PCB, so looking at the kinds of current the wires and connectors will need to take.
I've already got some JST-XH connectors which can take 3A, and I've got some 24 AWG 40/0.08 spec wire that the sheet says can take 2A carrying current and 7A instantaneous current.
I'm looking to swap out my toroid for this 18V dual secondaries (RS PRO 230V ac, 2 x 18V ac Toroidal Transformer, 160VA 2 Output | RS Components) which says 4.44 A on the secondaries.
Does this mean I have to make sure my board connectors and hookup wire will need to be able to carry > 4.44 A or is the toroid specs based on usage from how much the amp will pull and effectively the maximum current it can supply, and thus the 2A connectors and wire I have will be fine?
What determines the maximum current the amp will pull?
Thanks
I'm looking to buy some wires and THT connectors for my power supply PCB, so looking at the kinds of current the wires and connectors will need to take.
I've already got some JST-XH connectors which can take 3A, and I've got some 24 AWG 40/0.08 spec wire that the sheet says can take 2A carrying current and 7A instantaneous current.
I'm looking to swap out my toroid for this 18V dual secondaries (RS PRO 230V ac, 2 x 18V ac Toroidal Transformer, 160VA 2 Output | RS Components) which says 4.44 A on the secondaries.
Does this mean I have to make sure my board connectors and hookup wire will need to be able to carry > 4.44 A or is the toroid specs based on usage from how much the amp will pull and effectively the maximum current it can supply, and thus the 2A connectors and wire I have will be fine?
What determines the maximum current the amp will pull?
Thanks
It seems to me JST-XH connector has a bit of high contact resistance. So, for currrents higher then 1-2 A I use a Faston type (or something else). They are as easy to solder or to crimp and cheap.
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