From: Neil <picdude3@narwani.org>
To: Microcontroller discussion list - Public. <piclist@mit.edu>
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Date: Sun, 2 Aug 2020 09:42:07 -0700
Subject: Re: [EE] "Tactile" spec?
Thread-Topic: [EE] "Tactile" spec?
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The contradicting "tactile" categorization and "soft feeling type" is=20
what's confusing me.

I hadn't thought of hysteresis.   I took the 2 numbers to mean 2=20
different switch versions/models (since I don't understand the=20
Chinese/related language).
I'm now looking at the datasheet for a known tactile/clicky switch...
https://sten-eswitch-13110800-production.s3.amazonaws.com/system/asset/prod=
uct_line/data_sheet/144/TL1105.pdf

I don't see any hysteresis or 2 force numbers for these either though.

Cheers,
-Neil.





On 8/1/2020 12:38 PM, speff@interlog.com wrote:
>
> "Tact" switches are going to be tactile by default I think.
>
> The two "Operation force" numbers in the Hon Yuan datasheet imply hystere=
sis
> (one maximum force to actuate and one minimum force to release) so tactil=
e
> feel but but  whether that means it makes a noise is not obvious (how wou=
ld
> you even specify that technically?).
>
> Also, if you look at the tolerance bands, they don't guarantee it
> (though in practice I'm sure there is some hysteresis).
>
> --sp
>
--=20
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