This is an extremely detailed report on all the technical variables that are relevant to the plague of prematurely 'failing' OMRON switches on modern PC mice that more and more users have experienced lately, like the popular Logitech gaming mice (and other manufacturers too): this is NOT an attack on brands and manufacturers, but I have to talk BLUNTLY in order to get to the root of the problem, so it may come across as harsh at times. If anything, it shows that some of these parts are 'too good' and we just have to tweak the designs to get better life and performance.

For example: I show why the D2FC-F-K 50M switch is not the best choice for some modern mice until they 'fix' their circuitry, but that does not mean that it would not work very well for slightly older mice, etc, etc. I touch on bounce, chatter, polling rate, wear, logic voltage, switch current, general vs microcurrent-rated switches, firmware, drivers, materials tech, usage, ratings, etc.

3:50 Define problem
5:10 Specs are a lie
11:35 Wrong switch for the job
15:50 ole mouse vs new
20:35 micro-load switches
24:20 materials and noble metal plating
32:15 construction difference general and micro-load switches
35:55 pros and cons of D2CF-F series
44:16 polling rate, wear, bounce and chatter
56:35 old mouse experiment MX518
1:01:35 misc end user DIY "fixes"
1:05:23 what should Logitech and manufacturers do
1:09:04 SUMMARY and suggestions to mouse manufacturers

TL;DR:
-the change from 5v to lower (3.3v) logic voltage and use of the MCUs' higher resistance internal pull-ups (~40k) necessitates a change in hardware design, which manufacturers have not caught up to yet

-the change to faster MCUs and higher polling rates necessitates more advanced firmware logic, which manufacturers have not caught up to yet

-the 'general purpose' switches we have been using don't work well at new voltages/currents/rates, and the ruggedized 50M versions are even more incompatible, and may 'fail' even faster than the lower cycle-life versions

-Micro-load rated switches like D2F-01F or similar may offer better performance and longer electrical life (but possibly shorter mechanical life)

Here is a short video demonstrating an alternative mechanism, used by Honeywell: [ Ссылка ]

My contribution links:

MONTHLY SUBSCRIPTION:
[ Ссылка ]

ONE-TIME CONTRIBUTION:
[ Ссылка ]

GENERAL AFFILIATE LINK:
[ Ссылка ]

Background music by my band Solamors, you can contribute by buying a copy on bandcamp.com, or iTunes, Google Play, etc etc:
[ Ссылка ]
[ Ссылка ]

PRODUCTS and blog:
AlexKenis.com (redirects to my blog at the moment)

Parts links (affiliate):

Soldering/de-soldering kit:
Basic [ Ссылка ]
Slightly better [ Ссылка ] (better stand, more stuff)

D2F-01F Japanese OMRON switch (micro current rated):
2-pack: [ Ссылка ]
4-pack: [ Ссылка ]

D2FC-F-K and D2FC-F-7N NOT micro current rated:
5-pack [ Ссылка ] (50M)
5-pack [ Ссылка ] (20M)
5-pack [ Ссылка ] (10M)

Fantastic multimeter at a great price:
Model I use: [ Ссылка ]

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