SMK JM-0200
Contents
Overview
JM-0200 is an elastic contact low-travel pushbutton switch series from SMK.
A Filcril advertisment in Elektor Eletrônica from September 1988 mentions:
Chaves para teclado -
Séries JM 0200/JM 0201
“Chaves para teclado” means “keyboard switch”. JM 0200 was listed alongside JM 0400; sadly neither type was illustrated.
Only one part number is known.
| Part no. | Description | Source |
|---|---|---|
| J-M0200#02 |
The series is, however, described and illustrated in JEE, Journal of Electronic Engineering, Volume 18. Although Google Books will not allow the whole advertisement to be seen or the relevant journal issue to be identified, it’s clear that this is not a keyboard switch. Total travel is only 1.0 mm. Pretravel “One stroke” is 0.3 mm minimum. The switch seems to have a cruciform mount by default; the advertisement seems to depict this type, but lists subseries J-M0201 as “Flat Type of knob’s top”. The switch contacts are conductive rubber.
Documentation
- Filcril advertisement, Elektor Eletrônica, September 1988 (Internet Archive)