4 Ohm 20W Resistor Wire Wound

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4 Ohm 20W Resistor Wire Wound

20 watt wire wound resistors with 10% tolerance. Sold individually.
In Stock
Your Price
Buy 10-49 $0.78
Buy 50+$0.58
Part # 017-4

Product Details

4 Ohm 20W Resistor Wire Wound
20 watt wire wound resistors with 10% tolerance. Sold individually.

Product Specifications
  • Resistance4 ohms
  • CompositionWirewound
  • Power Rating20 Watt
  • Tolerance10%
4 Ohm 20W Resistor Wire Wound
  • BrandParts Express
  • Part Number017-4
  • UPC844632011191
  • Product CategoryWire-wound Resistors
  • Unit of MeasureEA
  • Product Rating
    (2 Reviews)
  • Weight0.066 lbs.
  • California Prop 65

    Warning: California residents only. Please note per Proposition 65 that this product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

View similar products to the 4 Ohm 20W Resistor Wire Wound
in the Wire-wound Resistors product category.


4 Ohm 20W Resistor Wire Wound
4 Ohm 20W Resistor Wire Wound is rated 5.0 out of 5 by 2.
Rated 5 out of 5 by from Excellent componentsI bought a few of these for a speaker project. I haven't used these yet, but I have used PE's other sand cast resistors. All have a very tight tolerance. I try to use a multi meter on any component I use. I have never gotten one of these that was off in value of + or- the tolerance.
Date published: 2015-02-12
Rated 5 out of 5 by from Works great!Just just what it is suppose to!
Date published: 2009-08-20
  • 2015-11-28T07:03CST
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Product Q&A

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4 Ohm 20W Resistor Wire Wound

can this resistor be used to convert a 4 ohm speaker ( 20 watts ) to a 8 ohm speaker if placed in series with the speaker ?

Asked by: ire bill
You are correct that the impedance would then be 8 ohms. HOWEVER !!! This technique is never used as the sound quality would suffer immensely. Resistors are not designed for this purpose. Mind you there are very large ones used to load test amps, but this is for testing only - not audio quality. And they are very expensive. So short answer - Don't do it ... hope this helps.
Answered by: markajh
Date published: 2012-09-21
  • 2015-11-28T07:12CST
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