Is the form factor of mouse switches standard?

[sudothelinuxwizard]

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]

Form factor? Not sure what you mean by that. The way the information a mouse sends to the computer is standard. That is, the protocols and voltages used are standardized. But the manufacturers can use any size or shape switch they want - as long as it is a "momentary" switch. That is, the switch completes the circuit when pressed, and stays that way until you lift your finger, then the circuit opens until you press the button again.

 

[sudothelinuxwizard]

Form factor? Not sure what you mean by that. The way the information a mouse sends to the computer is standard. That is, the protocols and voltages used are standardized. But the manufacturers can use any size or shape switch they want - as long as it is a "momentary" switch. That is, the switch completes the circuit when pressed, and stays that way until you lift your finger, then the circuit opens until you press the button again.

I meant the size of the switch and the spacing and size of the leads

 

[Frick]

They use switches, any switches, and those come in a ton of different dimensions and specifications. Whether or not there are optical switches you can just replace them with ... I don't know. I'm thinking probably not, because they work completely differently compared to normal mechanical switches. Normal switches just connects two poles and thus completes a circuit, an optical switch has lights and shutter mechanisms and stuff, meaning the entire mouse has to be designed with that in mind.

And this is just a question: How good are you at soldering, considering your hands shake so much you can't hold a ruler steady?

 

[Bill_Bright]

I meant the size of the switch and the spacing and size of the leads

No standards for any of that.

 

[eidairaman1]

They are proprietary so you should identify your current 1s and take measurements and also ask the manufacture of the device

 

[Frick]

They are proprietary so you should identify your current 1s and take measurements and also ask the manufacture of the device

Not in the case of the mouses I've opened. Those have all either been those push button switches or micro switches. OP wants to replace them with optical switches though.

No standards for any of that.

This is a detour, but I thought stuff like in the attached image were manufactured to some kind of IPC standards or something, like lead/hole size and stuff. Or is it just common sizes they use because everyone else use it?

 

[sudothelinuxwizard]

So you guys mean I'm just supposed to YOLO it and try multiple ones till one fits?

And this is just a question: How good are you at soldering, considering your hands shake so much you can't hold a ruler steady?

Jeez that's brutal... I'd say for the through hole things I've soldered so far I have never broken anything. My joints are never particularly clean but they're also never dangerous or unreliable.

Also, I thought the optical switches were an enclosed unit like the mechanical switches just with a different internal design.

So what kind of mechanical switch should I buy (it appears to be 3.3V)?