Electronics Forum | Wed Mar 28 10:56:56 EST 2001 | jseagle
Does anyone know the formula for calculating the grams per sq cm of lead for mounting bottomside unglued components? Thanks James
Electronics Forum | Wed Mar 28 11:29:49 EST 2001 | gcs
I've used below: WEIGTH OF COMPONENT IN GRAMS ---------------------------- TOTAL PAD MATING AREA IN SQUARE INCHES GRAMS PER SQUARE INCH MUST BE EQUAL/GREATER THAN 30 FOR SECONDARY MOUNTING.
Electronics Forum | Wed Mar 28 13:45:45 EST 2001 | gcs
sorry, equal to or less than.
Electronics Forum | Wed Mar 28 11:41:31 EST 2001 | jax
......So the more it weighs the better??? I'm not sure I follow. Did you mean to put "equal/less than" or were you answering a different question?
Electronics Forum | Tue Feb 17 18:17:28 EST 1998 | John Wilson
I am looking for any information or testing data done on the amount of weight that can be held by a bga package based on size of the solder sphere and number of spheres. I am reflowing components with a bga package on the opposite side and looking f
Electronics Forum | Wed May 17 12:22:54 EDT 2000 | JAX
Ramot, Without further explanation everyone here is just taking stabs at it..... Sounds normal, I'm game! Have you looked at board finish(HASL?)?? Measured paste height?? Are they always off in the same direction? If not, Handling?? What are the sp
Electronics Forum | Thu Feb 13 06:11:00 EST 2020 | makersan
Does anyone know the max component dimensions and weight that yamaha ys12f can place ?
Electronics Forum | Fri Oct 08 09:08:32 EDT 2004 | russ
I've never had one "float" in the wave. Have you tried waving yet to see? Anyway, glue would work, or you could place a a small weight on top, or clinch a couple of leads. Russ
Electronics Forum | Mon Jan 06 18:01:01 EST 2003 | dougt
This is getting deep but here's my input: Here's an idea....... Get a full reel and weigh it on a parts scale down in the stock room. Next weigh an empty reel. Subtract empty from full, and devide this value by the quantity of the full reel. This
Electronics Forum | Sun Jun 23 02:16:47 EDT 2019 | emanuel
Some manufacturers put very strong glue, the wider the part is so increases the glue strength. May sound funny but the only thing that worked was attaching a fishing weight to the tape, need to play a little until you find the correct size. The only
