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Help identify a resistor without bands

KilgoreCemetery

Apr 12, 2017
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Could somebody please help me identify some specifics about this resistor? I know that it's 0.1 Ohms, but is it wirewound or metal oxide? Is it fire resistant or water proof? That sort of stuff.

If it helps, it's pulled from a Rockford Fosgate T8004 amplifier and was located just in front of the MOSFETs on the circuit board. I've looked for a schematic, but so far, no dice.
 

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Harald Kapp

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Sounds reasonable. Power could be a tad less, impossible to say from the picture.
Although the thick coating doesn't allow to see the structure typical for wire wound resistors.
Most likely neither fire proof nor water resistant

The letter 'J' likewise indicates a tolerance of +-5%.

Probably any resistor of similar size and value will suit for replacement, if necessary.
 

dorke

Jun 20, 2015
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Most probably a Flame-proof/Flame-resistant resistor.
A "safety part" common in high wattage/current amps.
Should not catch fire when current exceeds high value on fault conditions.
Wattage depends on size(?),could be 3W.
Like this one
Any other writing on it?

Don't replace it with a "regular" resistor,it is a safety part!!!
Noname.jpg
 

KilgoreCemetery

Apr 12, 2017
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Ah, I wondered if it was going to have some safety specs with it. The replacement I ordered was listed as "Flame Retardant Coating, Safety". It's a 3W and very similar in size to the original. Hopefully that covers it :eek:

No other writing. Just the same thing printed three different times
 

73's de Edd

Aug 21, 2015
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I'll go for metal film element construction and stay at 2-3 Watt until you put in a side by side dime for size comparison . . . .or a penny . . . . if you are presently being hard up .
 

KilgoreCemetery

Apr 12, 2017
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I'm definitely hard up, but my calipers are paid off. I'm getting about 15mm x 5.5mm, not including the leads
 

bushtech

Sep 13, 2016
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Apologies for chipping in: If you need say a 2W resistor and you can only find a 3W version, is that OK to use?
 

73's de Edd

Aug 21, 2015
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NOW . . . . . . how about REALLY breaking that serial info down and actually coming out with . . . . . .
3W for 3 watts
R for being the position of a decimal place
Then that collectively becomes decimal 27 ohms
.27 ohms
And then the final K relates its 10% tolerance.
All of that is then amalgamated as being a 3 watt .27 ohm 10% tolerance resistor.
 

Victor james

Jul 28, 2018
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Does anybody know what make that resistor is and where do you buy them I have the same problem
 
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