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I don't know much about electrical engineering. I'm working on a project and need a 2.2k ohm resistor, but don't have one. However, I have 1.0k ohm and 1.2k ohm resistors. Can I combine one of each of these in a series as seen at the top of this page in place of the 2.2k ohm resistor? Could this cause any potential problems? Thank you!

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Short answer: Combine away.

Slightly longer answer: I would find it very difficult to imagine a scenario where it would make any difference. If you've got the space for two parts, 2.2K is the same whether it's 1 2.2k device 22 devices of 100 ohms each.

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For what it's s worth, 2.2k is one of the standard sizes (in both the common E12 and E6 size systems). You should have no trouble sourcing it.

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