Hi everyone. Im new here and to electronics troubleshooting in general. I am in el salvador and need to repair the junction boxes on two 135w solar panels that supply power to my sailboat. The junction boxes filled with rain water while the panels continued to charge for 10 months. The internal components of the junction boxes were heavily corroded and dissolved and need to be replaced. The panels work fine and produce 20 volts but there is no way to transfer this energy into my batteries until I rebuild the junction boxes. So how does one go about sourcing tinned copper bus bars and how do I determine what sort of bypass diodes are used in there.
Diodes will be rated by PIV or PRV (Peak Inverse Voltage). This needs to be greater than the max reverse voltage applied to the diode. My guess is 50V.
And you also need the max current they need to pass.