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Resistors - 0.5 Watt, Carbon Composition

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SKU: R-I
Item ID: 003655
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In Stock
Package of 5
View Specifications, Files, and Documents

Carbon composition resistors are made by mixing carbon particles with a binder molded into a cylindrical shaped, and then baked. Resistance decreases as temperature increases. Resistance is more prone to drifting than with other types. Standard 'classic' resistor. Sold in multiples of 5.

Values 100K and lower are 5% tolerance, values 100K and higher are 10% tolerance.

  • 1/2 watt
  • -55° C to 125° C operating range
  • 350 V working, 700 V overload
  • Low inductance
  • Low capacitance
  • Better pulse endurance characteristics than film type resistors
  • EIA color coded
Part Numbers
ResistanceOur Part Number
3 ΩR-I3
3.9 ΩR-I3D9
4.7 ΩR-I4D7
5.1 ΩR-I5D1
12 ΩR-I12
15 ΩR-I15
51 ΩR-I51
110 ΩR-I110
240 ΩR-I240
1.1 kΩR-I1D1K
2.2 ΩR-I2D2
2.7 ΩR-I2D7
6.8 ΩR-I6D8
8.2 ΩR-I8D2
10 ΩR-I10
20 ΩR-I20
27 ΩR-I27
36 ΩR-I36
47 ΩR-I47
68 ΩR-I68
82 ΩR-I82
100 ΩR-I100
120 ΩR-I120
150 ΩR-I150
180 ΩR-I180
220 ΩR-I220
270 ΩR-I270
330 ΩR-I330
360 ΩR-I360
390 ΩR-I390
470 ΩR-I470
510 ΩR-I510
620 ΩR-I620
680 ΩR-I680
750 ΩR-I750
820 ΩR-I820
1 kΩR-I1K
1.2 kΩR-I1D2K
1.5 kΩR-I1D5K
1.8 kΩR-I1D8K
2.2 kΩR-I2D2K
2.4 kΩR-I2D4K
2.7 kΩR-I2D7K
3.3 kΩR-I3D3K
3.6 kΩR-I3D6K
4.7 kΩR-I4D7K
5.1 kΩR-I5D1K
5.6 kΩR-I5D6K
6.2 kΩR-I6D2K
6.8 kΩR-I6D8K
7.5 kΩR-I7D5K
8.2 kΩR-I8D2K
10 kΩR-I10K
12 kΩR-I12K
15 kΩR-I15K
20 kΩR-I20K
22 kΩR-I22K
27 kΩR-I27K
33 kΩR-I33K
39 kΩR-I39K
47 kΩR-I47K
51 kΩR-I51K
56 kΩR-I56K
62 kΩR-I62K
68 kΩR-I68K
82 kΩR-I82K
100 kΩR-I100K
110 kΩR-I110K
120 kΩR-I120K
150 kΩR-I150K
200 kΩR-I200K
220 kΩR-I220K
240 kΩR-I240K
270 kΩR-I270K
330 kΩR-I330K
390 kΩR-I390K
470 kΩR-I470K
510 kΩR-I510K
620 kΩR-I620K
680 kΩR-I680K
750 kΩR-I750K
820 kΩR-I820K
1 MΩR-J1M
1.2 MΩR-J1D2M
1.5 MΩR-J1D5M
2.2 MΩR-J2D2M
2.7 MΩR-J2D7M
3.3 MΩR-J3D3M
4.7 MΩR-J4D7M
5.6 MΩR-J5D6M
6.8 MΩR-J6D8M
8.2 MΩR-J8D2M

RoHS Compliant

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Specifications, Files, and Documents

Product Reviews

4.9285714285714
4.93 out of 5 based on 14 reviews

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5
5 out of 5

Only resistors I like to use when restoring an old amp are carbon composition. These are cost effective, look right and when your amp is cooking, they sound right in the signal path. Highly recommended, don't cheap out.

A story: I had a customer years ago who had me replace all of the resistors in his signal path with these resistors, and all the caps with Mallory 150 series in his Hot Rod De-whatever. I like those amps for what they are, best amp you'll find for the money, but I'm no fan of the harsh tone. It was an expensive job and I tried to talk him out of it. But in the end the goal was achieved and I even found myself liking his amp. I wound up doing a bunch of reissue Fender amps this way and in the end it was worth it. Great product.

- November 15th, 2020
5
5 out of 5

Only resistors I like to use when restoring an old amp are carbon composition. These are cost effective, look right and when your amp is cooking, they sound right in the signal path. Highly recommended, don't cheap out.

A story: I had a customer years ago who had me replace all of the resistors in his signal path with these resistors, and all the caps with Mallory 150 series in his Hot Rod De-whatever. I like those amps for what they are, best amp you'll find for the money, but I'm no fan of the harsh tone. It was an expensive job and I tried to talk him out of it. But in the end the goal was achieved and I even found myself liking his amp. I wound up doing a bunch of reissue Fender amps this way and in the end it was worth it. Great product.

- November 15th, 2020
4
4 out of 5

Mostly only used for cosmetics now. Unless you are actually working with RF, these things are just not worth the price, and the future headaches. These are not as noisy or drifty as those old silver stripe 10% resistors in your old Tweed Fender Whatzitmaster Pro, Brown, Champ, Harvard, Concert, Deluxe, Vibrolux, Tremolux, Vibro Champ Twin Princeton amps, but just wait until they are old enough to collect social security and they'll suck just as bad. This composite is hygroscopic so values can and will change with humidity and drift with heat. The MOJO FACTOR. If you want that audible mojo, the Chinese make some really cruddy carbon comps, and I know where to get them. You also get even more Nyquist noise, more shot noise, and more thermal drift as well as drift with humidity. These old resistors actually do have their places, and sadly where they would be the most useful in an audio application they are also the most vulnerable to having problems too, and that's up in the Meg Ohms ranges, where carbon film and metal film resistors are really inductive. The ONE redeeming factor with carbon comp resistors is they are NON-INDUCTIVE! These would show up in old analog TV tuning circuits otherwise a carbon comp would either oscillate, pick up stray RF noise, or do both. I prefer the Brown Devils and the ceramic carbon comps, but they are now so expensive and so seldom used, almost no one carries them anymore. Modern stuff uses a planar thick film, instead of a spiral cut film, so those are all modern non inductive resistors, which can dissipate upwards of 500 Watts. $$$$$$ Yes those are expensive, and it makes these look, a little less expensive. Honestly.... Just uses carbon film, and metal film in key places. If you have 1 Ohm resistors for bias setting buy the 1%, 0.5% or 0.1% precision resistors, or you will destroy an amp, so DO NOT EVER USE THESE FOR A BIAS PROBE RESISTOR! !!NEVER EVER!! If you want to use them everywhere else, cool, but not for a bias set probe.

- February 5th, 2020
5
5 out of 5

Have been using these in my past few projects; period look and work great consistently.

- January 29th, 2020
5
5 out of 5

worked perfect

- June 11th, 2019
5
5 out of 5

These look great in amps. If you are looking for accuracy values order a couple of sets to get the best accuracy. They are not too far off the value thought I just needed some that were really close in value.

- May 20th, 2017
5
5 out of 5

Excellent reproduction of old Allen Bradley resistors , values with very low tolerance , well finished !! They are my first choice , to restore vintages like Marantz and McIntosh !!!

- May 3rd, 2016
5
5 out of 5

I often hear they don't make stuff like they used too ... well not true and I am glad they don't.
I keep some mid-1960's circuit boards for scavenging parts. These were from a zenith stereo. I needed a 470k carbon composite resistor. The ones in the board were 530k (>10% accuracy ... yikes!!).
The ones from you were 469k. Just fabulous. Thanks.

- December 22nd, 2015
5
5 out of 5

An excellent performing Carbon Comp Resistor for that vintage "feel" and tone!

- November 27th, 2015
5
5 out of 5

Just like the good old days! Use carbon comp when you want to keep your vintage Fender amp project as close to original as possible. Hope these never go out of production. Ever.

- August 4th, 2015

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