Electronics Forum | Thu Jan 19 15:57:29 EST 2012 | ngineer
Yup, that sounds right. I did try one with red on top on one side and white on top on the other side. Oops, blew a capacitor out of the back of the base. If anyone else Has these, here's how it goes to make them work: Top pin on both sides = +12V
Electronics Forum | Tue Jan 17 21:40:08 EST 2012 | gaz
I'm testing SN100C, and with our 5 zone oven I seem to be able to fix one issue by changing the profile, but that might introduce a new problem. Some profiles work very well on most components, but have issues on other components. These are usually 0
Electronics Forum | Thu Jan 19 16:38:39 EST 2012 | dyoungquist
We are not using SN100C in our reflow process but I know the type of flux made a big difference with our SAC305 solder. We started out using no-clean flux in our SAC305 paste and were having some issues. We then switched over to a water soluble flu
Electronics Forum | Tue Jan 24 21:30:09 EST 2012 | jorge_quijano
It means the machine places another component, no missing PCBs are built. As an update I have measured this % in the newest machine and it is below 1%, but in our worst machine (old quad) it is as high as 9% for a small batch of 10 boards (~15 comp p
Electronics Forum | Wed Jan 25 16:18:12 EST 2012 | wrongway
Your uising 6 mil thick screen on 0603 and sot-23 and you think you need more paste? when i use a 6 mil screen on a sot-23 and 0603 it is almost to much paste. 5 mill does just fine on those parts but if you think you need more paste then don't go t
Electronics Forum | Wed Jan 25 18:31:05 EST 2012 | kahrpr
A few years ago a lot of stencils were 6 mill and 7 mills and a lot of people still use them. these days with such a hi mix on the boards 5 mill seems to be a good compromise. if the 6 mills is working for you that's fine. One thing to note as you go
Electronics Forum | Fri Feb 03 09:50:37 EST 2012 | mosborne1
Thanks very much everyone. > > I'll try out a > 5mil and see how that goes. If you are using 6mil stencil and you are saying that you need more on the 0603 parts then you might want to look at your squeege pressure. What kind of squeege blades ar
Electronics Forum | Thu Jan 26 02:07:33 EST 2012 | denmark
Sir i need someones expertise on my problem. We are running repair unit which we conduct FFC removal in this process we are encountering big problem by whick we lessen solder deposit on our PCB.. 1. Can you give me some idea on what way can we put a
Electronics Forum | Thu Jan 26 11:42:58 EST 2012 | davef
Here's what we hear you saying: * Trying to repair a printed circuit board assembly * There's a problem replacing a 57 pin, 20 thou connector * Can't get enough solder paste on the connector leads * Printing paste, replacing the connector, then reflo
Electronics Forum | Fri Jan 27 09:00:14 EST 2012 | davef
A thermocouple is a set of two wires welded together at one end, where a junction is formed between the two wires. Because each wire is composed of a different type of metal, each wire reacts differently to the temperature of the junction. Because of
