Electronics Forum: formula (Page 2 of 37)

Component weight formula

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?

CM cost formula

Electronics Forum | Tue Feb 17 18:07:50 EST 2009 | smt_guy

Hi, How to calculate the proper overhead rate? I seem to see every CM has their own Calculations. thanks in advance.

Re: footprint formula

Electronics Forum | Thu Mar 02 11:57:25 EST 2000 | Wolfgang Busko

Did you try the online-calculator at the IPC-page. If you have the datasheet it should be no problem. For wave soldering I can�t tell if it�s suitable for that particular part, but you should add extra pads at the end of each column to solderbridging

Re: footprint formula

Electronics Forum | Fri Mar 03 06:41:09 EST 2000 | jacqueline coia

I have tried the IPC calculator and they do not have this type of component registered. When trying to select 'other' on menu, no connection can be made. The polarity if the QFP has not been decided yet (pre-PCB design) the pitch size of the componen

Re: footprint formula

Electronics Forum | Fri Mar 03 10:12:41 EST 2000 | Dave F

Jack: "Calculator/Other" works for me. But you know what, I'll bet they block Scotts from using it, because they're reputed to be too cheap to buy the standard. ;-) (Your component is in the standard. ;-)) If you can't get the supplier to help and

Re: footprint formula

Electronics Forum | Wed Mar 08 09:54:11 EST 2000 | Jacqueline Coia

Finally got using the calculator guys, (used another server connection). Not sure about the data that is entered for 'solder joint analysis', any helpful hints? To touch on the subject of Scots people being 'cheap', I cant understand these rumours, w

Re: footprint formula

Electronics Forum | Thu Mar 02 11:57:25 EST 2000 | Wolfgang Busko

Did you try the online-calculator at the IPC-page. If you have the datasheet it should be no problem. For wave soldering I can�t tell if it�s suitable for that particular part, but you should add extra pads at the end of each column to solderbridging

Re: footprint formula

Electronics Forum | Fri Mar 03 06:41:09 EST 2000 | jacqueline coia

I have tried the IPC calculator and they do not have this type of component registered. When trying to select 'other' on menu, no connection can be made. The polarity if the QFP has not been decided yet (pre-PCB design) the pitch size of the componen

Re: footprint formula

Electronics Forum | Fri Mar 03 10:12:41 EST 2000 | Dave F

Jack: "Calculator/Other" works for me. But you know what, I'll bet they block Scotts from using it, because they're reputed to be too cheap to buy the standard. ;-) (Your component is in the standard. ;-)) If you can't get the supplier to help and

Re: footprint formula

Electronics Forum | Wed Mar 08 09:54:11 EST 2000 | Jacqueline Coia

Finally got using the calculator guys, (used another server connection). Not sure about the data that is entered for 'solder joint analysis', any helpful hints? To touch on the subject of Scots people being 'cheap', I cant understand these rumours, w


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