Electronics Forum | Tue Jan 14 19:41:32 EST 2020 | avillaro2020
Hi Evtimov, Thanks for your response. Yes, the vapour phase is suppose to handle big and heavy boards, at least thats the intention. Well our thin board is like around 3mm which is not really thin. In our application the thicker the boards means more
Electronics Forum | Fri Jun 06 13:03:01 EDT 2014 | asksmt
Hi All, i have footprint 2X5 RA HEADER 2MM spacing in design. I am using about 9 mils of annular ring on top side and about 12 mils of annular ring on bottom side. refer picture attached. we are having solder short issues during wave solder so was
Electronics Forum | Thu Jun 07 18:09:21 EDT 2007 | stephan
We noticed unsufficient soldering on some 0805 chips located between pins from a plastic bloc connector . All chips are soldered with 45� angle. Flux quantity , preheating , contact time and PCB quality was checked. Do you know any international stan
Electronics Forum | Mon Jan 04 15:40:31 EST 2010 | dilogic
We recently got a job where (after placing SMT parts) we have to solder LED dot-matrix 8x8 display modules manually on the pcb. Due to the PCB design, it has to be TH type (also, it's the only type available) and soldered manually (or using selective
Electronics Forum | Tue Mar 13 20:31:39 EDT 2007 | grantp
Hi, We solder a part almost identical to this without problems. Could it be your airflow in your oven is set to high? On our prototypes we didn't place any solder on the middle bad as it was not a connection, and we did not need it thermally, how
Electronics Forum | Wed Mar 14 12:06:15 EDT 2007 | Oswaldo Rey
There is an approximate 1W dissipation and has a 2 sq in area below part on solder side as a heat sink, vias are to physically conect this solder side area to power pad, so its necessary to use an adequate amount of paste. I really don�t think it has
Electronics Forum | Fri Jun 08 07:45:58 EDT 2007 | davef
There is no standard for the spacing of components, nor should there be. We have a difficult time picturing your 0805 at a 45* to the wave and the safe pin, but we'd guess this spacing needs to be 10 thou.
Electronics Forum | Fri Feb 02 21:31:38 EST 2007 | bill_gates
Hi, I am considering to use pressfit D-Sub and DIN connectors on a backplane. The IPC guideline does just cover pin protrusion for soldered pins, which have to be flush with the board as a minimum acceptable design. Yet, if the backplane may be thic
Electronics Forum | Mon Jan 04 16:55:47 EST 2010 | dyoungquist
We use a HEPCO model 3000-2 (hepcoblue.com) to shorten leads on various through hole components before we solder them on a pcb. You will have to verify they have a die that works with your particular LED module. If they do, this is what I would rec
Electronics Forum | Tue Mar 13 17:29:18 EDT 2007 | Oswaldo Rey
I placed a Maxim MAX16810 38 pin TQFN with a power pad ground on the bottom of the chip on a prototype board FR4 doble sided. Vias of 0.6 mm where placed underneath part, 6 vias in total. Solder was placed with an air operated syringe, land pattern w
