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kekon
Joined: 19 Sep 2002
Posts: 103
Helped: 1
Location: Poland, Białystok
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 10 Jun 2008 11:36 Re: 0-ohm resistor |
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I have HAMEG equipment in my lab and i noticed they put lots of 0-ohm resistors (axial) on the single-layered PCBs. It is probaly much easier to mount such resistors automatically instead of simple pieces of wire. I also use such resistors in some of my single-layered PCB's because they look nice then 
Also, SMD 0-ohm resistors are used in two-layer PCB when there is impossible to place some copper tracks between components during design stage.
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huzuhong525
Joined: 11 Jun 2008
Posts: 15
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| 11 Jun 2008 9:14 0-ohm resistor |
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| As the bridge between A_GND and D_GND,or analog power and digital power .
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huzuhong525
Joined: 11 Jun 2008
Posts: 15
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| 19 Jun 2008 14:32 0-ohm resistor |
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| One of the advantages is that 0 ohm resistor is usual used to debug for those projects in design period.
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cyberrat
Joined: 19 Jun 2001
Posts: 903
Helped: 31
Location: In the sewers of the U.K.
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| 20 Jun 2008 9:11 0-ohm resistor |
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I like using zero ohm resistors because I can use them in series and its easy to add the total resistance up when your bad at maths 
Forget that its called a "resistor" and think instead of it as just a "link".
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dipti
Joined: 29 Sep 2007
Posts: 11
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| 20 Jun 2008 9:50 Re: 0-ohm resistor |
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I have used 0ohm links in my ckt.and they were very useful in troubleshooting of the ckt.
One can use them along with the decoupling capacitors for the supply pins of the IC.
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RF-OM
Joined: 03 Aug 2007
Posts: 607
Helped: 113
Location: The Earth
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| 20 Jun 2008 16:54 Re: 0-ohm resistor |
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Please keep in mind that actually zero ohm chip resistor has about 0.5 ohms resistance, 0.5 nH inductance and some parasitic capacitance as well. This capacitance depends on PCB substrate. When you do high frequency design it is important. On GHz frequencies we often use it as small (below 1 nH) inductor.
BR,
RF-OM
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TekUT
Joined: 17 Jun 2008
Posts: 322
Helped: 22
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| 20 Jun 2008 16:59 Re: 0-ohm resistor |
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I'm usually using 0 Ohm device to enable some function on the board, then with a single PCB I can achieve several different function simply by set the right 0 Ohm resistor, from this point of view a 0 Ohm resistor act like a simple jumper.
Just take care about the maximum current that a 0 Ohm is able to carry on (this depend on the technology and the size), 0 Ohm isn't a shunt or fuse.
Also a 0 Ohm can be used to keep simpler your PCB routing.
Cheers
F.F. a.k.a. Powermos
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Baby_face
Joined: 24 Jun 2008
Posts: 1
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| 24 Jun 2008 3:08 0-ohm resistor |
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| for the test,or make the trigger more smooth
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