Recently got one of the original PS/2 mice off ebay. Seems to mostly work. Problem is with the left mouse click - it is inconsistent and clicks are sometimes missed. I opened it up but there really doesn't seem much in there to try to clean. I sprayed a little deoxit on the switch but didn't make a difference.

I'm thinking the microswitch is on it's way out so I would like to replace it. Anyone know what these specific switches are called and where I can order up replacements? Or any other idea of how to get the current one to work?

Love the look of these and it goes great with my PS/2 machines.

Thanks

Mouse model number is 6450350 if that helps

Edit: I've found some micro switches like these that seem to be similar: https://www.amazon.com/DAOKI-Miniature-Moment … ps%2C133&sr=8-9

On the current switches on the mouse however - there is a fifth pin which seems to be coming off the top metal plate (can see in the front of the picture). A grounding pin I guess? The ones from amazon above don't seem to have that and just have the pins at the four corners. Would that make a difference?