625 tolerance results

Electronics Forum: tolerance (Page 7 of 63)

What is to much Void?

Electronics Forum | Mon Dec 13 14:13:39 EST 2004 | Gary

We are setting up our criteria for acceptance of solder voids. We would like 2% to 4% or smaller as our tolerance. Does this sound reasonable? Are most x-ray machines able to accurately measure at that size? Also, do most people find that 2% to 4

Solder Iron Tips - Acceptable Temp Tolerance?

Electronics Forum | Wed Sep 05 09:40:35 EDT 2018 | dontfeedphils

Dave, That it exactly what I was looking for and the resistance/leakage voltage tolerances line up with what I've already found scattered about the internet. Thanks! -Phil

Quad 4c not placing components

Electronics Forum | Wed Sep 04 12:55:51 EDT 2019 | dwl

Sounds like its just rejecting parts. Either the length and width of the component is wrong or the tolerance is set too tight. I don't remember the function codes to edit the tolerance but I left them at 30% (the max) and never had any problems with

Identifying Caps

Electronics Forum | Tue Nov 12 12:49:55 EST 2002 | dragonslayr

Use an "LCR" (L= inductance, C= capacitance, R= Resistance)meter. There are several name brands to choose from (Fluke, etc.) Hand held units are relatively inexpensive. In fact, you may consider having more than one available. Receiving inspection s

Conductor width tolerances

Electronics Forum | Tue Nov 09 05:14:49 EST 1999 | Wolfgang Busko

Hi all, our problem we face is the mismatch of conductor width on the delivered PCB and the nominal width given by CAD-data. With CAD we are improving pads and conductors to match the specific needs for soldering and the board houses counteract our i

IPC Spec for PTH Hole Size Tolerance

Electronics Forum | Wed Apr 10 11:46:28 EDT 2002 | mlovett

I would like to know the Stated Specification for PTH size tolerances. Or is there a generalised acceptable limit?. We have some PCB's with hole sizes that I consider to be way off what I would deem acceptable, ie Finished hole size should be 0.89mm

Frequency to verify the reflow profile

Electronics Forum | Fri Jun 03 10:15:14 EDT 2005 | PWH

We do both our ovens once a week. If something looks out of tolerance (we've developed acceptable tolderances based on many recorded profiles over time and oven mfg. specs.) we wait a couple hours and try again. The recorded data over time is very