Electronics Forum: smt ohm (Page 1 of 2)

Ghost circuit shorts under smt resisters only when they are located on solder side of pcb (glued down)

Electronics Forum | Fri Jul 23 14:07:52 EDT 1999 | Carl J. Odle

We are having a process related problem with pullup resistors on a controller card which has a I960 micro-processor. The controller monitors signal inputs and it's own resources then blinks a LED to indicate its working. The problem is that after a p

Re: Ghost circuit shorts under smt resisters only when they are located on solder side of pcb (glued down)

Electronics Forum | Sun Jul 25 08:54:37 EDT 1999 | Tom Gervascio

| We are having a process related problem with pullup resistors on a controller card which has a I960 micro-processor. | The controller monitors signal inputs and it's own resources then blinks a LED to indicate its working. The problem is that after

Re: Ghost circuit shorts under smt resisters only when they are located on solder side of pcb (glued down)

Electronics Forum | Fri Jul 30 09:43:44 EDT 1999 | C.K.

| We are having a process related problem with pullup resistors on a controller card which has a I960 micro-processor. | The controller monitors signal inputs and it's own resources then blinks a LED to indicate its working. The problem is that after

Re: Ghost circuit shorts under smt resisters only when they are located on solder side of pcb (glued down)

Electronics Forum | Mon Jul 26 10:25:12 EDT 1999 | Boca

| | We are having a process related problem with pullup resistors on a controller card which has a I960 micro-processor. | | The controller monitors signal inputs and it's own resources then blinks a LED to indicate its working. The problem is that a

Re: Ghost circuit shorts under smt resisters only when they are located on solder side of pcb (glued down)

Electronics Forum | Mon Jul 26 14:14:51 EDT 1999 | Steve Gregory

| | | We are having a process related problem with pullup resistors on a controller card which has a I960 micro-processor. | | | The controller monitors signal inputs and it's own resources then blinks a LED to indicate its working. The problem is th

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

Re: SMT Jumpers (links)

Electronics Forum | Wed May 03 20:22:36 EDT 2000 | Dave F

Peter: This isn't what you asked for (I think), but it may be neater. Source of SMT links (jumpers): Most resistor suppliers make zero ohm resistors. Size � 8mm - 10mm (.312in -.4in) long: Most resistor suppliers package these resistors in comm

Need help on PCBA Cleanliness Standards and Specs

Electronics Forum | Tue Nov 25 16:26:43 EST 2003 | tdurston

We are trying to establish requirements and process controls for completed, cleaned SMT assemblies. We have problems with our high impedance circuits (100 meg ohms) being affected by residue. Some boards require additional cleaning cycles to remove

resistor and capacitor naming codes for smt.

Electronics Forum | Sun Sep 27 10:42:35 EDT 1998 | l atch

I'm looking for a chart that will help me identify smt resistors and capacitors. I have figured out a few on my own. a resistor with the numbers 510 printed on it was a 51 ohm resistor. numbers 221 was a 220 ohm resistor. numbers 102 was a 1k resis

Cost Per Placement

Electronics Forum | Tue Oct 30 15:04:36 EDT 2018 | SMTA-Shafiq

Steve, Part numbers with the same specification are not part of the same BOM. Scenario is, SMT Line #1 builds Products X, Y and Z Product X has a part number #1 that is a resistor with 50 ohm value and a power rating Product Y has a part number #

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