A sub-miniature, close-differential, normally open switch with a 14.00mm long x 2.28mm diameter (0.551" x 0.090") glass envelope capable of switching 200Vdc at 10W. Available sensitivity range of 10-30 AT. High insulation resistance of 1010 ohms minimum and low contact resistance of less than 100 milliohms. Available in surface mount version (MASM-14). Ideally suited for position, proximity, float position sensing for liquid level, industrial controls, office equipment, home appliance, and telecom applications.