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I'm convinced the world is ending

BennyF

BennyF

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Check this out. I found it today while fixing a customers audio amp. It's a 0 ohm resistor. How do you have a 0 ohm resistor wouldn't it just be a piece of wire?
IMG_3099.jpg
 





They shape them like that so that the same machines that place "regular" resistors can also place the 0-ohm jumper "resistors." This is done with surface-mount stuff too.

EDIT: Also, 593.5nm is a DPSS wavelength - I think you want 594.1nm. :)

-Trevor
 
I think he means that if it's truly 0 ohms then it's not resisting anything, hence not a resistor. Oxy-moron. :P

I wonder how many watts that 0 ohm resistor is rated for? :D

-Tony
 
Whats funny though is that there are regular jumpers on the board to so its not like all of the jumpers were just these 0 ohm resistors.
 
Xplorer877 said:
I think he means that if it's truly 0 ohms then it's not resisting anything, hence not a resistor. Oxy-moron. :P

I wonder how many watts that 0 ohm resistor is rated for? :D

-Tony
Click to expand...

Silly fellow, and I thought that you were so bright... Obviously infinity.:crackup:

Benny, The world IS ending, Just that we won't be arround to see it (hopefully)...
 
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123splat said:
.....
Benny, The world IS ending, Just that we won't be arround to see it (hopefully)...
Click to expand...

Talk for yourself ..... i've already paid the tickets and reserved the seats for the end-of-the-world show, and don't want to waste my money ..... :p :D
 
BennyF said:
Whats funny though is that there are regular jumpers on the board to so its not like all of the jumpers were just these 0 ohm resistors.
Click to expand...

It depends on the distance a link has to span. If its equal to that of a standard PTH resistor (4/10 of an inch), using zerohms is often very practical in production since the machine that puts the other resistors on the board can do these too.

Placing shorter or longer wire bridges is often done using a different machine that puts actual bare wire in place, or even manually in smaller production runs.

I wonder how many watts that 0 ohm resistor is rated for?
Click to expand...

0.25W in that form factor. The real resistance of these things is often in the order of 0.02 ohms, rating them at a burn-out current of about 6 amperes. I doubt the tracks leading to it would withstand that current though.
 
Benm said:
0.25W in that form factor. The real resistance of these things is often in the order of 0.02 ohms, rating them at a burn-out current of about 6 amperes. I doubt the tracks leading to it would withstand that current though.
Click to expand...

LOL, I know bro, I was kidding. :yh:

-Tony
 
Benm said:
The real resistance of these things is often in the order of 0.02 ohms, rating them at a burn-out current of about 6 amperes.
Click to expand...

Except there is (presumably) no carbon in them - just copper.
 
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