Electrical Engineering

Question about relative humidity specification for electronics. Industrial automation, indoors, cabinet or instrument enclosure.

The failure mechanisms at the upper limit are fairly intuitive. I'm wondering about the lower limit.

Some devices specify 5%-95% RH - eg. Siemens S7-1500 PLC, which I figured was tested to oblivion.

Actual device in question here is far simpler, consisting mainly of an unremarkable PCB, a sensor which provides upper limit RH specification ( setting the likely upper limit for the system), and wiring + connector. The unknown is the PCB and maybe wiring insulation. We don't intend to test aging, but are asked for guidelines.

Are there failure mechanisms to expect with electronics components or interconnects, over time in very dry conditions?

is a duplicate

This question has been asked before and has already been answered. It should be marked as a duplicate.

Please enter the URL of the proposed duplicate in the details field below.

not constructive

This question cannot be answered in a way that is helpful to anyone. It's not possible to learn something from possible answers, except for the solution for the specific problem of the asker.

Communities

Comments on Humidity specs - is there typical reasoning for lower limit greater than 0?

Humidity specs - is there typical reasoning for lower limit greater than 0?

2 comment threads