I have a question regarding SSRs. I am working on redesigning a PCB for a medical device that needs to pass class B radiated emissions, therefore radiated EMI must be very low.
We have a CPU fan running off 12 V (~890 mW) and I was going to try using a SSR to control its operation, due to the cost savings of an SSR vs. a standard mechanical relay. Do you think the greater "on" resistance of the SSR (1-2 ohms vs. milliohms) could lead to increased EMI? The fan does have a dedicated hub driver.