Micro Switch SC Series
 | |
| Manufacturer | Micro Switch |
|---|---|
| Switch type | Clicky |
| Sense method | Membrane |
| Switch mount | Plate mount |
Micro Switch SC Series is a family of keyboards using stacked spring membrane keyboard system with discrete slider modules. SC series is clicky; the quiet tactile equivalent is Micro Switch ST Series. The "SC series" name is not confirmed; it was taken from the part number of the ITT Courier 1700 keyboard by analogy to how ST and SD series keyboard part numbers operate. Documentation for this product range has yet to be obtained.
Contents
Description
The switch features a diaphragm spring (or plate spring) placed over a membrane set. The switch uppers are discrete and plate mounted, and retain the slider.
The switch consists of a slider housing which retains an axially mounted coil spring which acts on a transversely mounted metal diaphragm spring. Depressing the slider, compresses the coil spring. The force of the coil spring compression acts on the diaphragm spring. When the force reaches the tipping point, the diaphragm spring buckles and snaps downward pressing against the membrane sheet, completing the circuit. The switch has a very crisp tactile feel and solid sound[1].
Keyboards
- ITT Courier 1700 (92SC40-23; 1984)
- Some Symbolics 364000
Gallery
The switch is Micro Switch–branded.
Top, with branding visible
Side
Side
Bottom, showing snap-action spring
Snap-action spring removed to reveal the helical spring
References
- ↑ Deskthority — ITT Courier 1700 keyboard - help id the switches
