Is the form factor of mouse switches standard?

sudothelinuxwizard · 2025-01-11T18:45:39+0000

Forgive me if I'm being stupid here.

Recently, I've been having fancies about replacing the shitty unbranded switches in my Logitech M90 mouse with optical ones. I don't mind soldering or any of the other hassles, but I can not for the life of me find out WHAT format of switch will be able to be soldered into the pads. If it's helpful, the switch has 2 leads, is through-hole soldered, and measures about 14 x 5 x 6.5 mm and the leads are spaced about 6 mm apart (account for +/- 0.5 mm in my measurements because my hands tremble and I couldn't hold the ruler steadily).

Bill_Bright · 2025-01-11T23:13:46+0000

Shrek said:
but you can install long life switches.

"IF" they will physically fit. There is NO standard that ensures that. And isn't that the point here?

Shrek · 2025-01-11T23:18:35+0000

Bill_Bright said:
"IF" they will physically fit. There is NO standard that ensures that. And isn't that the point here?

Looks like a standard micro switch to me; if you like the mouse, it is well worth fixing.

Frick said:
Not in the case of the mouses I've opened. Those have all either been those push button switches or micro switches.

Same experience for me.

Bill_Bright · 2025-01-11T23:26:01+0000

Well there you go. It "looks" standard to Shrek so go for it. What could possibly go wrong? :rolleyes:

Shrek · 2025-01-11T23:28:49+0000

sudothelinuxwizard said:
measures about 14 x 5 x 6.5 mm and the leads are spaced about 6 mm apart (account for +/- 0.5 mm in my measurements because my hands tremble and I couldn't hold the ruler steadily).

Micro switch

sudothelinuxwizard said:
Microswitches had 3 leads, the mouse only has 2 pads

#785 - 5 Minute Fix - Logitech M90 Mouse Button Repair

Has 3 leads

Wirko · 2025-01-12T00:23:33+0000

I take apart those D2F switches and clean the contacts when necessary, which is once a year at worst. It's not hard to do. It's not hard to ruin the switch either, so it's best to have at least one spare at hand.

Visible Noise · 2025-01-12T00:23:44+0000

These are the switches Logitech uses.

EVQP0E07K | Panasonic Industrial Devices

na.industrial.panasonic.com

They are junk, when they wear out people usually replace them with Kailh GM 8.0 blue. A set of Kailh switches costs more than the mouse. I mean really, the M90 is a $1 mouse.

Edit: Looking at the photo that Shrek posted, these are definitely not the ones in that mouse. I know for a fact these are used in the MX line as I have replaced them.

Shrek · 2025-01-12T00:49:55+0000

I was suggesting better replacements

Kailh GM 8.0

Wirko said:
I take apart those D2F switches and clean the contacts when necessary, which is once a year at worst. It's not hard to do. It's not hard to ruin the switch either, so it's best to have at least one spare at hand.

Seems like a lot of trouble and might be easier to just replace the switch.

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