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Alps SKCL Yellow

Alps SKCL Yellow
A single desoldered Alps SKCL Yellow switch
Manufacturer Alps Electric
Family Alps SKCM/SKCL series
Part Number SKCLAR, SKCLFQ, SKCLFM
Switch Type Linear
Travel 3.5mm
Sense method Metal contact
Mount Plate mount
Rated lifetime 20 million cycles
Quoted operating force 60gf

Alps SKCL Yellow is a linear switch in the second generation of the Alps SKCM/SKCL Series.

Characteristics

The switch follows the general characteristics of the SKCL family, consisting of an upper and lower housing, contact module, stem, and spring. The upper housing has a hole for an LED, but the bottom housing will only have holes for the LED legs to pass through in switches ordered with an LED.

SKCL Yellow will always have slits in the upper housing despite being a second generation switch. The slits never appear to have been removed for SKCL switches.

The stem, which is a canary yellow color, is almost always unlubricated and is likely made of POM1).

Alps SKCL Yellow, like all SKCM/SKCL series switches, uses a contact module to register the keypress. This sits in the housing on the side that does not have the LED cutout.

Additional Information

The switch was likely in production from 19882) to around 20013). The switch replaced SKCL Green, with both switches existing side-by-side for a short time.

1)
tested on SKCM Salmon via burn test
3)
PCB date on Chinese numpad with SKCL Yellow