If you don't mind a few components you could implement a classic discrete 2
transistor Schmitt trigger
<https://www.google.com/search?q=3Dschmitt+trigger+transistor&rlz=3D1C1CHBF=
_enNZ834NZ839&source=3Dlnms&tbm=3Disch&sa=3DX&ved=3D0ahUKEwjNr-6QqazkAhUXbi=
sKHYOECkQQ_AUIESgB&biw=3D2048&bih=3D1025>
with two BJTs and 5 resistors. Component sizes can be at "breathing hazard"
level if you can handle them.

Or with 4 resistors
<https://www.edn.com/design/analog/4437676/Schmitt-trigger-uses-two-transis=
tors>using
an NPN/PNP pair.

You can then design I_max_transition to suit.


Data sheets are for dimension information only:

DFN2020B-3
2 x 2 mm
https://www.diodes.com/assets/Datasheets/ZXTN619MA.pdf

DFN1006B-3 / SOT883 / SC101
1.3 x 0.9 mm
https://assets.nexperia.com/documents/data-sheet/PMBT3906M.pdf

Resistors

Choose your poison

0.4 x 0.2 mm
0.6 x 0.3
1.0 x 0.5
.....
http://www.samsungsem.com/kr/support/product-search/chip-resistor/__icsFile=
s/afieldfile/2019/01/21/RC_Spec_Sheet(1901).pdf




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