Miniature Detector Switches C&K Components Miniature Detector Switches offer every application requirement from consumer electronics to the automotive industry. The C&K Components' Detect Switches GDS Series features an ultra-low profile (0.9mm off PCB), the HDT Series features a micro mini surface mount, the SDT Series features a micro mini pendulum surface mount, the KSJ Series features a spherical actuator tact switch, the MDS Series features a micro snap-acting tactile feel, and the SDS Series features a side actuation.