C&K KMT0 series is completely sealed and stays fully functional under water for a minimum of 5 hours at a depth of 2 meters. In addition, the KMT0 series is fully resistant to the most stringent conformal polymer coatings, including one of the smallest particle chemical vapors, parylene, which is used for coating printed circuit boards (PCBs) and medical devices.
Featuring a lifespan of more than 300,000 electrical and mechanical cycles, the KMT0 series ultra-low profile makes a viable solution for handheld and portable electronic device applications requiring a small footprint. The IP sealing is an excellent solution to protecting against perspiration and water in portable devices.
The RoHS-compliant and halogen-free ultra-miniature KMT0 switches feature a footprint of only 3.0 mm x 2.6 mm with a height of 0.63 mm or 0.65 mm. The single pole single throw (SPST) normally-open switches are constructed with silver plating and are available with four operating forces: 1.0 N, 1.6 N, 2.3 N and 3.4 N. Maximum overload is 30 N. Actuator height is only 0.2 mm, and the integrated actuator allows for simpler button design while yielding an excellent tactile ratio minimum 30%, providing sharp feedback (low tactile ratio of 10% is available for hearing aids and headsets).
The KMT0 series switches feature a maximum power rating of 0.5 VA and a voltage range of 20 mV to 32 VDC with a current rating from 1 mA to 50 mA. The operating temperature ranges from -40°C to +85°C.