r/AskElectronics • u/skateboards-hurt • 1d ago
Online seller isn’t being helpful, what is this switch?
Bought a bootleg eBay sequential shifter for my racing simulator rig. When I plugged it in, one of the gears was showing as being held down. Took it apart, found this control board. The switch with the metal blade on it was broken. Has no tactile feedback or anything, whereas the other switch feels very snappy. My question is: what’s this type of switch called? Is this a part I can source easily?
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u/Fearless_Worker739 1d ago
You have two switch of the same model but one is broken.
They are single pole double throw micro switches.
Doaki micro switch 125V 1A/2A. https://www.amazon.com/DAOKI-GR-US-118A-P/dp/B07YKH3TDR
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u/JimHeaney 1d ago
It's a limit switch. There's no standardization but what you have there is a very generic one, similar looking ones (with the distinct white plastic with 2 holes) will likely fit. Search component suppliers like LCSC. Part will be like $0.10.
Make sure to match the orientation, pin bend direction, lever style, etc.
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u/Diehard4077 1d ago
And NO or NC
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u/Goz3rr 1d ago
Almost all switches do both, that's why they have 3 pins.
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u/Diehard4077 1d ago
And normally I would agree with you but literally yesterday I ran into ones being used as interlocks and they aren't marked amd were broken so no continuity either way and a few months ago a buddy thinking the same changed a pair on a CNC style machine and they were inverse what he thought. Shit happens I always want more information instead of assuming
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u/Effective-Emphasis-4 1d ago
Have to find some Cherry brand switches to solder in there. They're garden variety micro switches.
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u/slick8086 1d ago
zooming in the spec seem to be 2A 125v AC.
They are called "snap action switch with lever" and as you can see from that search, they are a zillion different kinds.
If you have calipers measure the dimensions a start searching from there. I can't see the markings on the bottom switch but that might lead to more info.
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u/redd-bluu 1d ago edited 1d ago
Microswitch. I got a jar full. They're not all identical though. Many just have the little plastic button that the "blade" presses. (There's probably 4 or 5 of those inside a typical microwave oven) Typically, they are SPDT and have 3 blade plugs, C, NO, and NC. Often, one of the blades isnt there making the switch an SPST NO or SPST NC.
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u/WRfleete 1d ago
Does it “release” when you push the switch. The NC and NO contacts may be switched around if it does that
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u/shiftingtech 1d ago
You've gotten lots of general answers, but unless I'm highly mistaken that's the size commonly labelled as a "kw10" microswitch. Though if that current rating is actually relevent, note that most kw10s are only rated at 1A. (given the apparent low-power nature of the circuit, I doubt it matters)
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u/SubnormalNebula 1d ago
These are quite common switches in 3d printers. Omron D2F-L are some of the better quality ones. Looks like there are ones with left/right angled legs as well so should be easy enough to replace
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u/MysticalDork_1066 1d ago
it's a subminiature microswitch, also sometimes called an "ultra mini" microswitch (redundant, I know, but that's the name the industry has settled on). They're available with different pin configurations (NC, NO, or both, straight or right-angle mounted), and with or without the little metal lever.
That one looks like it's got right-angle pins, and it's got all three of them (both NC and NO).
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u/codeccasaur 1d ago
It's a "micro switch with lever". They come in various sizes.