Alps ultra low profile
 | |
| Manufacturer | Alps Electric |
|---|---|
| Switch type | Clicky |
| Sense method | Metal leaf |
| Keycap mount | Unique |
| Switch mount | PCB mount |
Alps ultra low profile refers to a rare low-profile PCB mount switch from Alps.<ref name="Sandy" /> The switch uses a snap-on keycap mount similar to Hi-Tek Series 725 switches to achieve an even lower profile than Alps low profile switches. The switch emits a quiet click when depressed. The switch branding is found on the top of the slider assembly.
Construction[edit | edit source]
The switch is formed of two separate assemblies. The base contains the separated contact plates and actuation spring and is soldered to the PCB. Onto this is placed a self-contained slider assembly, containing a base, a flat-topped slider, and an internal return spring separate from the actuation spring. The exact number of parts is not known, as the switch has not been fully disassembled.
When force is applied to the slider, the central flat-topped piece and the enclosing shaft telescope into the base.
Keyboards[edit | edit source]
- Unidentified NTC laptop keyboard from 1992<ref name="Sandy" />
Gallery[edit | edit source]
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Alps ultra low profile switch -
Flat-top slider with Alps logo, which snaps onto the switch base -
Flat keycap mount to match the slider -
Assembled (left), and slider assembly removed (right) -
Slider assembly -
Base assembly -
Base assembly with actuation spring removed -
Actuation spring -
Inverted slider assembly -
Slider assembly depressed
References[edit | edit source]
<references> <ref name="Sandy">Sandy — ALPS Ultra Low Profile switch</ref> </references>
