Resistor needed

[JJT]

A solenoid went on my tactor and in the process knackered a resistor in the control box. Could do with a bit of help finding a replacement one. It has "R10 1%" and "254 - 0" And i think it is a vtm resistor? Wouldn't be me getting the soldering iron out to replace it if i can find one, but mechanic who will do it is having trouble sourcing one too. Any help appreciated, thanks joe.

 

[Tractor Tim]

Maplin or rs components are pretty good

 

[Phil P]

As above, try RS components or perhaps @Pheasant Surprise can help identify it?

If your stuck for someone to repair it give DK electronics a shout.

 

[Kidds]

Maplin or rs components are pretty good

I don’t think you will find Maplin very helpful

 

[Phil P]

I don’t think you will find Maplin very helpful

I was going to say that but wasn’t sure if they had gone web based and I didn’t know ?

 

[Dry Rot]

Any good?

VITROHM solid wire resistor power, precision CR254-0 10 Ω ± 5% 2.5 W (VITROHM CR254-05T10R) - EVE GmbH

We are your partner for all electronics! With approximately 35,000 articles and numerous product variants we offer one of Europe's most extensive ranges. Due to the close partnership with leading manufacturers, we have a broad and deep product range - well above current standard ranges beyond...

www.eve-electronics.com

 

[Blue.]

Vitrohm wire resistors, 0613 housing, 5%, 2,5W, CR series - elpro Elektronik

Vitrohm wire resistors, 0613 housing, 5%, 2,5W, CR series - cemented wire resistors, , taped , wound on a ceramic core , enamelled resistor core , resista...

www.elpro.org

 

[traineefarmer]

I think R10 means it's a 10ohm. 1% refers to the tolerance. What will be equally important is matching the size to the wattage rating, which may mean trawling the RS website and comparing dimensions.

Expect to have to but a pack of 100.....

 

[pgilliat]

RS or Farnell, both have really good technical departments to help.

 

[335d]

I think R10 means it's a 10ohm. 1% refers to the tolerance. What will be equally important is matching the size to the wattage rating, which may mean trawling the RS website and comparing dimensions.

Expect to have to but a pack of 100.....

R10 should be 0.1 ohm. 10 ohm would be 10R

 

[Dry Rot]

R10 should be 0.1 ohm. 10 ohm would be 10R

Ah, then my link (above) is incorrect, but they have others.

 

[Pheasant Surprise]

Looks like it’s a Vitrohm brand, CR series wire-wound (that’s the construction method) pulse load (that’s the electrical load specification) resistor.

I actually reckon it’s a 10 ohm resistor rather than a 0.1 ohm @ 1% tolerance (R10) .... if you read the spec sheet it says the minimum resistance for this particular type (254-0) is noted as 9R1 which is 9.1 ohms. Bit weird then they note it as R10

2.5 watts, (impulse) power dissipation

See catalog, page 5

http://vitrohm.com/files_stat/Pulse-Load-Wirewound-Resistors-200907.pdf

 

[Pheasant Surprise]

R10 should be 0.1 ohm. 10 ohm would be 10R

I know what you’re saying but honestly have you ever seen or heard of such a low value resistor? It’s also not consistent with the spec sheet, as noted above

 

[Tomr10]

If you dont get ot sorted drop me a msg I will see if I can get sombody to solve it for you

 

[335d]

I know what you’re saying but honestly have you ever seen or heard of such a low value resistor? It’s also not consistent with the spec sheet, as noted above

I use 10mohm resistors (0.01) quite frequently at work as shunts for measuring current.
I don't know enough about this application though, but really r10 is 0.1 and 10r is 10 ohm. If there was another one marked r10 on the board I would be measuring it to be sure. However from your data sheet it looks like u don't get a r10

 

[farmerm]

Would the failed resistor be the cause the problem or the result of some other fault?

 

[Mursal]

E_Bay paying attention to the physical size, as this will determine wattage the resistor can take before heating up

 

[335d]

Thinking about this again, 0.1 ohm can either be r10 or 0r10.
There is a part number CR254-01R0R1, which would like like it would fit the bill, although looks to be superceeded by cr300.
Looking at the pic again, they all look the same, so I would measure the resistance of one of the others. You may need to unsolder a leg first, for an accurate measurement. If they are 0.1 ohm, you will need to null your lead resistance first, and have a meter with good resolution.

CR254-01R0R1

 

[Pheasant Surprise]

Thinking about this again, 0.1 ohm can either be r10 or 0r10.
There is a part number CR254-01R0R1, which would like like it would fit the bill, although looks to be superceeded by cr300.
Looking at the pic again, they all look the same, so I would measure the resistance of one of the others. You may need to unsolder a leg first, for an accurate measurement. If they are 0.1 ohm, you will need to null your lead resistance first, and have a meter with good resolution.

CR254-01R0R1

An accurate measure really is what’s wanted.

 

[Monty]

From dry rots link the vitrohm resistors do come in 0.1ohm form as well but written as 0R1. These are 6.5mm diameter and 12.6mm long. The 10ohm ones are only 5.5mm diameter. Surely a multimeter would distinguish between 10 and 0.1 ohms without unsoldering even if the reading is not totally accurate. My money is on 0.1ohm as they look very stubby in shape

VITROHM solid wire resistor power, precision CR254-0 0.1 Ω ± 5% 2.5 W (VITROHM CR254-05T0R1) - EVE GmbH

We are your partner for all electronics! With approximately 35,000 articles and numerous product variants we offer one of Europe's most extensive ranges. Due to the close partnership with leading manufacturers, we have a broad and deep product range - well above current standard ranges beyond...

www.eve-electronics.com