Electronics Forum: smt and resistors (Page 1 of 74)

non magnetic smt resistors

Electronics Forum | Wed Feb 02 08:39:33 EST 2005 | David N Nadel

Looking for non magnetic 1% surface mount resistors. Does anyone have a clue where to find them?

SMT resistors

Electronics Forum | Tue Jun 06 17:27:19 EDT 2006 | russ

See IPC 610 for this. Section 9, there are a lot of conditions so I will not post here Russ

SMT resistors

Electronics Forum | Tue Jun 06 10:48:47 EDT 2006 | jsloot

Perhaps there is someone who can answer this question. If a 1k 1% 0805 ohm resistor is missing a corner is it still going to read 1K ohm? Or, if it has an extra bit of material is it going to read more than 1k ohm? I am guessing that when chip reisis

SMT resistors

Electronics Forum | Tue Jun 06 12:19:06 EDT 2006 | Rob

Hi John, They may still read the correct value initially, but they are not going to age well if the electrodes start oxidising. Also the high voltage surge performance & the impedance are likely to be effected, however these may be unimportant to y

0402 resistors and capacitors

Electronics Forum | Tue Oct 02 07:23:37 EDT 2001 | cath

Has anyone caried out a DPM analysis on these components. I would be interested to know the defect rates and other assoc. placement issues as we have never placed them before. Thanks, cath

Thin Chip resistors and HSP 4797 T12W8P

Electronics Forum | Wed May 21 14:47:49 EDT 2003 | radney

On the new 4797 T12W8P feeders we are having trouble picking the very thin chip resistors. Adding foam to the feeder (beneath the pick point) helps, but it only minimizes our frustration. Universal has a reel of these parts and they are looking into

Thin Chip resistors and HSP 4797 T12W8P

Electronics Forum | Wed May 21 17:11:37 EDT 2003 | radney

Yes to all of the above with the exception of the part sticking. The same parts are EASILY picked using the 4790/91 feeders on a 4790/91 machine. The new feeders just flip the part out when the feeder advances. Thanks! Lee

Thin Chip resistors and HSP 4797 T12W8P

Electronics Forum | Wed May 21 15:47:34 EDT 2003 | JB

We have an HSP 4796, if the feeder mechanism is the same, this may help you a bit. First make sure that the componet definition is right on the component library. Tape or Embossed. Second, the component thickness vs actual thickness. Is the pick u

Bottom side smt and thru hole

Electronics Forum | Tue May 26 22:13:15 EDT 1998 | Pat Copeland

R&D is currently designing a board with smt components on both sides of the board. They are adding a 16 pin IC Gull wing. on the bottom side of the board. I have asked for only caps and resistors to be placed on the bottom side. Is there a recommende

Re: Bottom side smt and thru hole

Electronics Forum | Sun Jun 07 09:43:11 EDT 1998 | Bob Willis

There are some guidlines on design and through hole reflow on my web site to download. Also on pin in hole reflow the SMTA Office has a document on using the tecnology. R&D is currently designing a board with smt components on both sides of the bo

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