| Author |
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| madman666333 |
 Posted: Mon Dec 08, 2008 12:48 am Post subject: |
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| well i thought it might be a 3 watt since the blue one is of equal size and is a 3 watt but i was not sure since there was a "j" instead. thanks for your help. |
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| vtech |
| Posted: Sun Dec 07, 2008 5:47 pm Post subject: |
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While you could use a 2 watt in place of it, it would be underrated and it looks more like a 3 watt resistor which may be harder to find.
Something for you to know that in general, if available to compare, you can always use other resistors in vicinity as a gauge to guesstimate the wattage. In this case, the blue one(1.8ohm) just below is a good example.
After dealing around components for a while, it will get a lot easier to determine wattage by looking at the physical size.
BUT I will also add that in practice, especially with power resistors, the fluctuation of a few ohms in resistance are not that critical as the inherent tolerances pretty much negates that. After all, the main purpose of a low-value,power resistor is more like "heavier fusible protection" aimed for it's supply line. |
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| madman666333 |
| Posted: Sun Dec 07, 2008 1:50 pm Post subject: here is the pic. its the center one. |
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| vtech |
| Posted: Sun Dec 07, 2008 2:30 am Post subject: |
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| J does not denote wattage or anything specific for that matter. What is the exact physical size of the "white" resistor or better yet can you post a picture of it sitting on the board? |
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| madman666333 |
| Posted: Sun Dec 07, 2008 1:52 am Post subject: pioneer pro 119 converg. board resistor R2604 |
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| this is a solid white resistor thats marked as a 2.2 ohm-J and is reading at 1.3 ohm. i want to replace it but am not sure what the wattage is. what does "J" stand for? i have 2.2 ohm 2 watt but not sure if it will work. also the resistor has its value printed on it not color coded. |
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