Electronics Forum: lcr (Page 1 of 1)

First piece inspection, 0402

Electronics Forum | Tue Jan 08 07:46:12 EST 2002 | ianchan

Dun you have a LCR meter? or mebbe your side calls it a LCZ meter??? whatever...it measures Inductance, Ohms, Capacitance...check-it-out-manz...

Help identify missing smt component

Electronics Forum | Thu Aug 10 14:52:08 EDT 2006 | russ

Should be some numbers on the top of the other two. If you can read them we can get you the right part info. it also looks as though you have some trace and pad damage that will require repair prior to you putting down new part. Or you can remove

TH to SMT conversion

Electronics Forum | Fri Aug 24 15:06:11 EDT 2007 | stepheniii

What kind of boards are they? Unless they are very simple boards, you won't be able to just replace every TH component with a SM equivalent. The inherent LCR characteristics of the board will change I think the normal way would be not to change the

Resistors and capacitors 01005 measurement of value

Electronics Forum | Tue Jan 29 20:33:52 EST 2019 | deanm

First, you cannot measure capacitors once they are soldered onto the board. Second, why must you measure? Verify your machine set up by using intelligent feeders (if your machine has them) or a checklist, preferably by two people. If you cannot trus

First piece inspection

Electronics Forum | Wed Jan 09 20:40:58 EST 2002 | ianchan

Since we are on the topic, What we do over here, is to get SMT Technical to machine pick&place "sample component layouts" onto double-sided tape, which in turn is placed onto an actual PCB... QA will take that double-sided tape sample, and using an

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

Polystyrene Caps through wave solder

Electronics Forum | Tue Jul 27 09:44:48 EDT 2004 | davef

We hand solder them also. From CapSite 2004 ... "Whether polystyrene capacitors will really go away any time soon is not certain. I have been warned of polystyrene�s demise "in a few years" for over a decade now, and yet it is still available. The

smd capacitors- ICT measuring

Electronics Forum | Thu Jun 13 08:32:24 EDT 2013 | rway

Have you verified the measurements on the bench with an LCR meter? Chances are you are experiencing aging with these ceramic caps. We have similar issues with X5R and X7R caps. You will see the effects of aging with returns from the field as well

smd capacitors- ICT measuring

Electronics Forum | Fri Jun 14 12:00:10 EDT 2013 | rgduval

Is this a new assembly/new test fixture/program? Or is this an existing assembly that is suddenly exhibiting this failure? Capacitors measured in circuit will not necessarily measure their correct values. Active components in circuit will be affec


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