Hi
I have a board that has 2x R220 and 1xR56 , 220ohms and 56Ohms respectively' resistors on it, I think they are rated at 1/2W , now I can only get 3W from this supplier along with other stuff, will that be ok ? .
cheers
Spike
HiIf they'll fit. You can determine wattage from the size. The only complication is that manufacturers make some "small" package resistors that dissipate twice the power of the traditional sizes.
Yes the wording was a bit confused R56 =56 ohms= Fifty Six .What is the construction of the current resistors? Carbon, metal film etc. Same question for the 3W. Many higher wattage resistors (about half on Digikey) are wire wound, and depending on use, that inductance could be a factor to consider.
Do you mean 56 Ω or 560 Ω?
If the resistors are of the same type, it likely wouldn't be a problem. To say with more certainty, we need to know the application.I just wanted to know if there would be a problem to fit a 3w resistor in place of a 1/2w !
HiIf the resistors are of the same type, it likely wouldn't be a problem. To say with more certainty, we need to know the application.
In that case, using an over sized resistor of any type won't likely be a problem.they are off a kenwood Chef A901 Food Mixer
Looks like carbon film to me.I think they are Carbon
HiLooks like carbon film to me.
The 56 Ω resistor you show in the picture doesn't look like 1/2 W, more probably 1/4 W, but perhaps the picture is misleading as to scale.
Hi
I have a board that has 2x R220 and 1xR56 , 220ohms and 56Ohms respectively' resistors on it, I think they are rated at 1/2W , now I can only get 3W from this supplier along with other stuff, will that be ok ? .
HiThe 56 Ω resistor you show in the picture doesn't look like 1/2 W, more probably 1/4 W, but perhaps the picture is misleading as to scale.
In general, using a higher-wattage resistor OF THE SAME KIND is not a problem provided it can physically fit in the space provided; certainly there are exceptions, but it is unlikely that a 5% tolerance resistor would be used in most such situations. For use in the application you are talking about, it is doubtful that even using a different kind of resistor would cause an issue (but we can't be sure unless we see the schematic and even then it might not be clear).
Why can't you just use another supplier? I would expect that 3 W resistors might be sufficiently more expensive that it might be worth going elsewhere. But depending on where you are located, that might not be the case or even an option.
Given those dimensions, I would have to think that they are 1/2 W.Hi
Yes I think they could be 1/4W , they measure about 8.5mm length and 2.74mm thickness