Alps SKER Series

SKER is an elastic contact keyboard switch type from Alps Electric. Although there is no clear evidence, it is reported to come from the keyboard of a Panasonic KX-E708 electronic typewriter and is keyboard model KFERAA001A (with code PJSHX011ZA-A on the upper row of the keyboard unit label).

A single photo alleged to include SKER implies that it is simply a tactile equivalent to KEH, with a conventional dome as with KED instead of the special spring-over-dome arrangement of KEH.