Electronics Forum | Tue Jan 03 05:08:50 EST 2006 | Rob
Yes - as they flex less due to their size. I do have the calculations somewhere from my field apps days but it may take some time to find. The problems occuring with the X7R's MU
Electronics Forum | Wed Feb 10 17:00:44 EST 1999 | James Seagle
Does anyone have experience placing a Pinrex 2mm 2x20 SMT header. The dimensions of the part are as follows: length 40mm (1.58"), width 6mm (.236"), height 5.35mm (.211"), pitch 2mm (.079"). If so, what type of centering are you using? Any advice
Electronics Forum | Thu Sep 26 16:29:02 EDT 2002 | pjc
Because most placement machine mfgs' feeders vary in width sizes its best to get the reference from them. Like how many 8mm slots does their 16mm consume, and so forth. Std. Sizes I've seen are: 8mm, 12mm, 16mm, 24mm, 32mm, 44mm, 56mm, 72mm, 88mm, 10
Electronics Forum | Fri Aug 23 02:29:16 EDT 2019 | sssamw
It seems because the soldering area is not enough, so the wetting force is small to hold the switch, remember >0.08g/mm2 for each part as in IPC standard. So, anyway, you need increase the soldering area to reduce weight/area number to below 0.08g
Electronics Forum | Mon Jun 30 16:35:13 EDT 2003 | davef
Hi Steve We don�t double reflow this part. We wouldn�t consider it without a fixture or some other support. You know that sound, the almost involuntary sound that patrons in a restaurant make when a waiter drops a glass or a tray? It�s kind of an
Electronics Forum | Mon Jul 27 03:20:42 EDT 1998 | Frank J. de Klein
Dear Dave, Sure we can ! There are two values going around. One is 50 mg/mm2 The other one is 30 g/inch2 (30 * 1000) / (25.4 * 25.4) = 46.5 mg/mm2 So we are talking the same language. Regards, Frank J. de Klein | | | Hi, | | | We have encountered one
Electronics Forum | Fri Jul 24 10:36:48 EDT 1998 | Dave F
| | Hi, | | We have encountered one serious problem that heavy packages falling down during second side reflow, especially for PLCC 84. I believe it caused by temperature profile setting. | | Any good suggestion would be highly appreciated! | | Stone
Electronics Forum | Tue Jan 27 14:32:37 EST 2004 | fritschusa
Assembleon machines are extrememly flexible and adaptable. Their service / tech support is outstanding. I consider them a leader in our industry. My shop is low/mid volume high mix. I have kits of 1 to 10,000. 0201 to 56mm^2.
Electronics Forum | Thu Sep 09 04:19:27 EDT 2004 | Simon UK
I think if the machine has the capability of multiple fields of view (Quad systems do!) You can mesure any device with the visual camera to circa 80mm2. Simon
Electronics Forum | Fri Apr 28 05:00:33 EDT 2017 | youth
I tried a PCB prototype service previously called Wellpcb and was happy with the cost and lead time. From their website online PCB calculator, manufacturing 10pieces of 100 × 60mm 2 − layer PCB will cost you around $27USD.
