Tolerance
Tolerance
(OP)
Here is the hypothetical. We must drill a hole to mount a feed-thru terminal with a body diamter of .145 +/-.010. The feed-thru must be soldered in with a gap around the body of approximately .005 to ensure good capillary action to flow the solder. Taking into account tolerances, what size hole should be called out on the housing?
RE: Tolerance
Does the feedthru manufacture spec the proper hole to drill. Most electrical components give you the required hole and mounting foot prints.
Having said this I would drill a 5/32" or .156. This gives you the required .005 gap nominal, and in a worst case the feedthru still fits.
Tofflemire
RE: Tolerance
RE: Tolerance
You know there are mfgrs who make solder preform rings. All you have to do is slide them over the solder terminal and heat them with a heat gun. I believe RAYCHEM (now part of TYCO) is one mfgr.
Tunalover
RE: Tolerance