Author Topic: Is this a 2.7G Ohm resistor?  (Read 866 times)

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Offline EdumcgTopic starter

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Is this a 2.7G Ohm resistor?
« on: November 22, 2023, 04:05:31 pm »
Hello!

I'm trying to figure out if this through hole resistor is really 2.7 G Ohm rated 1 watt. At least that's what I think by following the color code chart.

The reason I doubt that is because I've tried to look on different electronics suppliers but I haven't been able to found a resistor similar to the one in the picture. I have only found metal oxide resistors which look quite different so I'm not sure if I'm in the wrong here.

Any comments or guidance would be appreciated it :)

PD: I did test it with a multimeter but it gave me a reading of 1.8 ohm. My multimeter only goes up to mega ohm.
 

Offline Dan123456

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Re: Is this a 2.7G Ohm resistor?
« Reply #1 on: November 22, 2023, 04:15:09 pm »
The grey might actually be silver giving you a 0.27 ohm resistor rather than 2.7G ohm  :)

Why you are getting a reading of 1.8, I’m not sure  :P Does your meter read 0.00 if you touch the leads?
 
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Offline EdumcgTopic starter

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Re: Is this a 2.7G Ohm resistor?
« Reply #2 on: November 22, 2023, 04:53:03 pm »
Lol you are totally right. I don't why my head was stuck thinking it was grey and not silver. The table I was looking at didn't have silver so that didn't help. Thank you very much!

Regarding your question on the 0.0 reading, well it depends. When I touch the leads sometimes reads 1.8 ohm others 0.7 so maybe my equipment is faulty .... I will replace the battery or maybe get a different one from a friend

Although with a 180 resistor it reads 177 ohm which is not that far off, still I will do the mentioned above :)
 

Offline ebastler

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Re: Is this a 2.7G Ohm resistor?
« Reply #3 on: November 22, 2023, 06:01:54 pm »
Regarding your question on the 0.0 reading, well it depends. When I touch the leads sometimes reads 1.8 ohm others 0.7 so maybe my equipment is faulty .... I will replace the battery or maybe get a different one from a friend

Clean the probe tips with contact cleaner (organic solvent and deoxidant), especially if they are not gold-plated. And push them together with a bit of pressure when you touch them. Likewise, apply a bit of pressure when connecting the leads to the resistor, to give good contact and penetrate potential oxide layers. That should give you a more stable reading.
 
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Offline Vovk_Z

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Re: Is this a 2.7G Ohm resistor?
« Reply #4 on: November 22, 2023, 06:45:18 pm »
My multimeter only goes up to mega ohm.
And typical resistors usually are manufactured up to several megaohm (up to 10-20 MOhm). Higher values are used very rarely and usually need special resistor design. Your resistor looks quite usual so it can't be of a gigaohm range.
 
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