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Siemens STB 11



STB 11 is a discontinued range of computer keyboard switches from Siemens. It is covered in German patent 2943855, filed in October 1979.

STB 11 is a tactile design, with an integrated diode. The plunger interacts with the contact leaf to generate the tactile feel.

Travel is 4.0 mm and 2.5 mm depending on model. 2.5 mm travel was introduced in 1983, for “Bedienfunktionen und für die Eingabe von Befehlen” (for for operating functions and for entering commands, i.e. keys that were not touch-typed). The other characteristics of the switches remained unchanged.


See also