Short-stroke keys for PCB mountingKey heads are available in 3 lengths, with 3 different diameters, designed for efficient action beneath front membranes. Bases are available with two different actuation forces (1,3 bzw. 2,6N).Features :short-stroke keys for printed circuit board mountingKHT....TK : short, total height 9.0mmKHT...TM : medium, total height 13.0mmKHT...TL : long, total height 22.5mm