As long as the grease isn't too thick it is fine even on low-pressure contacts. I've seen it used in RJ45 connectors for wireless LAN devices that are used outdoors to help prevent corrosion of the data contacts. On a relatively beefy connector like F, PL259, N, etc., the normal wiping action of the contacts during mating will ensure good electrical contact regardless of the presence of the grease.
-Bill > High pressure contacts, I feel fine getting slathering dielectric grease all > over > them before making the connection. Examples are like a Battery terminal in a > car, or a spade lug under a screw, or the barrel on an F connector. Something > you actually apply some amount of force to tighten (even just "tight finger > force"). This forces the grease out of the actual metal to metal contact, and > at the same time ensures the metal contacts are enclosed in the grease. > > But for low pressure contacts, e.g. molex pins, or the center pin on an F > connector jack, I think it's best to keep the dielectric grease off the low > pressure contacts. Having it in and around a connector boot or shroud that > goes around a low pressure contact is fine. A good thing in harsh weather or > chemical environment to help keep weather and fumes out. Rubber > connector boots last a lot longer with silicone grease on them. _________________ Topband Reflector