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Date: Sat, 1 Aug 2020 09:38:06 -0700
Subject: Re: [EE] "Tactile" spec?
Thread-Topic: [EE] "Tactile" spec?
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Quoting Neil <picdude3@narwani.org>:

> Is there some way to tell from a datasheet if a switch is "clicky"/tactil=
e?

"Tact" switches are going to be tactile by default I think.

The two "Operation force" numbers in the Hon Yuan datasheet imply hysteresi=
s
(one maximum force to actuate and one minimum force to release) so tactile
feel but but  whether that means it makes a noise is not obvious (how would
you even specify that technically?).

Also, if you look at the tolerance bands, they don't guarantee it  =20
(though in practice I'm sure there is some hysteresis).

--sp



>
> I'm looking for switches for a really small custom keyboard, with
> "larger" caps so I don't have to make keycaps (for a hand-held terminal).
> I found variations of this (
> https://lcsc.com/product-detail/Tactile-Switches_ALPS-Electric-SKPMAPE010=
_C110292.html
> ) which are listed under "Tactile switches", but the datasheet (
> https://datasheet.lcsc.com/szlcsc/1811151425_ALPS-Electric-SKPMAPE010_C11=
0292.pdf
> ) says "Soft feeling type".
> Other brands don't seem to have anything about it, but not sure if
> there's some spec that I don't know of...
> https://datasheet.lcsc.com/szlcsc/1811011022_HYP-Hongyuan-Precision-1TS00=
9A-2000-5000-CT_C255813.pdf
> https://datasheet.lcsc.com/szlcsc/1809271721_Korean-Hroparts-Elec-K2-1817=
UQ-C4SW-01_C128939.pdf
>
> And aliexpress version says "silent" in the title...
> https://www.aliexpress.com/item/32820232659.html?spm=3Da2g0w.10010108.100=
0016.1.66ba49e7qBfE7W
>
> Is there a way to figure this out w/o having the cost/lead time just to
> get a couple pieces to try?
>
> PS:  Yes, I could use domes on a PCB, but then I have to make keycaps,
> which is another effort in itself, and this is just a one-off for myself.
>
> Cheers,
> -Neil.
>
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