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resistor question.

O

oldslowchevy

Guest
i need a resistor with the value of 5 watts@100ohms, i can not find this locally though.

but can i daisy chain 10, 1/2 watt@10 ohm resistors to get my desired value?

or should they all be 100 ohm?

yeah yeah yeah i know newb question i know.:cry:
 

oldslowchevy said:
i need a resistor with the value of 5 watts@100ohms, i can not find this locally though.

but can i daisy chain 10, 1/2 watt@10 ohm resistors to get my desired value?

or should they all be 100 ohm?

yeah yeah yeah i know newb question i know.:cry:
Click to expand...

Parralel three 2 watts to make a 6 watt 100 ohm or 5 one watt

Sent from my LG-P990h using Tapatalk 2
 
If by "daisy chaining" them you mean connecting them in series, the half-watt resistors will be right at the upper limit of their power rating. The resistance should be about the same, given normal manufacturing tolerances, but 100 ohms @ 5 watts gives a total current of about 0.224 amperes, and this amount of current has to flow through EACH of the resistors.

Using P = I^2R, I get 0.50176... watts. No safety margin at all.
 
i am just tring to lowwer my dead key from 10 watts to 5 watts, the instuctions say to use a 5 watt 100 ohm resistor, i can not source them locally so now i am looking at other options.
 
20 5 ohm 1/2 watt resisters in series will get that 5 watts at 100 ohms. Actually 10 watts but that will work.
- 'Doc

Just order a resistor, that wad of 5 ohm resistors is probably bigger than you got room for.
 

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