Alps SKCL Lock
Manufacturer	Alps Electric
Family	Alps SKCM/SKCL series
Part Number	SKCLJB1), SKCLJC2)
Switch Type	Alternate action
Travel	3.8mm
Sense method	Metal contact
Mount	Plate mount
Rated lifetime	300,000 cycles
Quoted operating force	150gf

Alps SKCL Lock is a alternate action switch in the first and second generation of the Alps SKCM/SKCL Series.

The switch follows the general characteristics of the SKCL family, consisting of an upper and lower housing, contact module, stem, and spring. There is a follower arm that moves along a track in the stem to generate a locking action wherein the switch stays depressed until pressed again.

There are two switches in the series, both largely identical aside from contact module and materials:

• SKCLJB - A cream-colored SKCL Lock switch in the first generation
• SKCLJC - A gray-colored SKCL Lock switch in the second generation

Alps SKCL Lock, like all SKCM/SKCL series switches, uses a contact module to register the keypress. This sits in the housing on the side without the LED cutout.

The switch was likely in production from 1983³⁾ to at least 1994⁴⁾.