I have a product for automotive that uses rubber keypads with gold/nickel plating over copper contact on a gold plated PCB. 5VDC with a current of 0.001 to 0.025A. Contacts are 3mm dia. How would I calculate what the contact resistance should be? I have a 15milliohm max requirement from FORD. Is this atainable?
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Rubber keypad switch - contact resistance
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What is this for? I have worked with the Big 3 for years and am not familiar with anything that would require pushbuttons.
Other than that, I quess I am confused on what your question is. If you know how much resistance you have in your circuit, you know how much current you are going to sink / source, and you know how much of a voltage drop you are allowed to have, why can't you figure out how much extra resistance (contact resistance) you can tolerate?
Other than that, I quess I am confused on what your question is. If you know how much resistance you have in your circuit, you know how much current you are going to sink / source, and you know how much of a voltage drop you are allowed to have, why can't you figure out how much extra resistance (contact resistance) you can tolerate?
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