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Definitive Omron Switch Guide for Mice

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Leslieann:

--- Quote from: smolid on Wed, 15 September 2021, 08:42:38 ---According to the datasheet the -01 marking refers to models which are rated to work at 0.1A instead of more general purpose non -01 models. I would guess that the -01 is more suitable for computer mice.
https://omronfs.omron.com/en_US/ecb/products/pdf/en-d2f.pdf

--- End quote ---
I believe you're referring to the ratings, which are typically max rating, not minimum.
We're not battling high voltage and amperage, we're battling an issue with too little amperage to maintain a closed connection and keep the contacts clean. Scroll down a bit, the number we need to pay attention to minimal applicable load and initial contact resistance.

Remember, most through-hole electronics, including switches, were designed back when low voltage was nowhere near what it is today. You used to always worry about how much it could handle, today with modern electronics we more often have to worry about how little a switch or connector can take and what frequencies it can handle.

smolid:

--- Quote from: Leslieann on Thu, 16 September 2021, 03:55:38 ---
--- Quote from: smolid on Wed, 15 September 2021, 08:42:38 ---According to the datasheet the -01 marking refers to models which are rated to work at 0.1A instead of more general purpose non -01 models. I would guess that the -01 is more suitable for computer mice.
https://omronfs.omron.com/en_US/ecb/products/pdf/en-d2f.pdf

--- End quote ---
I believe you're referring to the ratings, which are typically max rating, not minimum.
We're not battling high voltage and amperage, we're battling an issue with too little amperage to maintain a closed connection and keep the contacts clean. Scroll down a bit, the number we need to pay attention to minimal applicable load and initial contact resistance.

Remember, most through-hole electronics, including switches, were designed back when low voltage was nowhere near what it is today. You used to always worry about how much it could handle, today with modern electronics we more often have to worry about how little a switch or connector can take and what frequencies it can handle.

--- End quote ---

I don't get what you mean, you just agreed that the problem is with too little amperage with current mice but prefer the non-01 general purpose model which has a spec'd minimum load of 100mA? Wouldn't the -01 model which is rated for 1mA minimum be the better choice?

Leslieann:
Yes, for continuous current, our problem is not the continuous, I mean, it is, but the bigger issue we have is initial load.

The initial resistance on the -01 is higher, meaning the switch has a harder time making that initial contact and staying there. If it can't make a good closed connection it will bounce. It needs a certain amount to overcome that bounce and stay shut before you can even start to worry about minimum current.

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