Fun / Projects / with my 1997 America Dream
Borrowed a trailer and getting ready for some fun in the sun (it's cold here now 30's again tonight) I went and bought a 8 inch drop hitch, the 6 inch had the deck at too much of an angle, and ...
Forum Discussion
Usually a diode on a relay coil is there to prevent damaging reverse-polarity transients from the induction in the coil when the coil is de-energized. During normal operation, it must of course be reverse biased (i.e. not conducting); otherwise, the power for the coil would be diverted and shorted out through the diode, and the relay would not operate. It's something to keep in mind if you ever need to replace it or the relay.
Commonly the diode is put in place when the relay coil is driven via some sort of a semiconductor device which would be susceptible to damage or false triggering otherwise. It probably is not necessary if a mechanical switch or another relay is controlling the coil, though it may conceivably help to prevent arcing in the controlling switch/relay contacts. It might be on the relay as it comes from the relay factory. At any rate, there is no reason to remove it.
Commonly the diode is put in place when the relay coil is driven via some sort of a semiconductor device which would be susceptible to damage or false triggering otherwise. It probably is not necessary if a mechanical switch or another relay is controlling the coil, though it may conceivably help to prevent arcing in the controlling switch/relay contacts. It might be on the relay as it comes from the relay factory. At any rate, there is no reason to remove it.
