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Is there another resistor of the same stated value to measure? &nbsp;Unless there is a K or M or some other marking, you would expect the resistor in question to be 510 ohms, just like the 180 ohm resistor. There is not a standard for printed values but markings usually make it clear. <br />
<br />
You need either a comparable resistor or manufacturer spec sheet to be sure.
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Is there another resistor of the same stated value to measure?  Unless there is a K or M or some other marking, you would expect the resistor in question to be 510 ohms, just like the 180 ohm resistor. There is not a standard for printed values but markings usually make it clear.

You need either a comparable resistor or manufacturer spec sheet to be sure.

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Ignoring measurement technique- a number may match or be totally unrelated to resistance. You can't count on it. Even a match can have quite a bit of tolerance. &nbsp;*If the package is not charred or damaged and is connected properly, there is a 99%+ chance that it will work properly, regardless of the measurement. *A rule of thumb from way back in my circuit component troubleshooting &amp;&nbsp;repair days.
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Ignoring measurement technique- a number may match or be totally unrelated to resistance. You can't count on it. Even a match can have quite a bit of tolerance.  *If the package is not charred or damaged and is connected properly, there is a 99%+ chance that it will work properly, regardless of the measurement. *A rule of thumb from way back in my circuit component troubleshooting & repair days.

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Mostly today, numbers on a component have meaning. This is true for the stuff in my shop downstairs..
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Mostly today, numbers on a component have meaning. This is true for the stuff in my shop downstairs..

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Thanks, I found the schedule on-line:<br />
<br />
<a href="http://www.learnabout-electronics.org/Resistors/resistors_07.php" rel="ugc">http://www.learnabout-electronics.org/Resistors/resistors_07.php</a>
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Thanks, I found the schedule on-line:

http://www.learnabout-electronics.org/Resistors/resistors_07.php [http://www.learnabout-electronics.org/Resistors/resistors_07.php]

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Thanks. It is always the spec sheet that will tell you.
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Thanks. It is always the spec sheet that will tell you.

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I am trying to repair a circuit board where several of the surface mount resistors have come lose.<br />
I am trying measure the resistance, but the measured values don't quite match what is stamped on top.<br />
<br />
The resistors that have &quot;180&quot; on top, almost exactly have that as a measured resistance ohms.<br />
<br />
The resistors that have a value of &quot;510&quot; stamped on top, have a measured value of &quot;50&quot;.<br />
Is there a implied decimal point ??
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I am trying to repair a circuit board where several of the surface mount resistors have come lose.
I am trying measure the resistance, but the measured values don't quite match what is stamped on top.

The resistors that have "180" on top, almost exactly have that as a measured resistance ohms.

The resistors that have a value of "510" stamped on top, have a measured value of "50".
Is there a implied decimal point ??

surface mount resistors

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