Ducommun Technologies, Inc. announces its QK Series of SP3T-SP6T coaxial multi-position switches that feature K type connectors with a frequency of DC to 40 GHz. Actuator options include normally open and TTL circuitry with integrated indicator circuits. Terminated models are also available with the 2.4 mm connector. RF impedance is 50 ? nominal, operating temperature is from -35°C to 85°C ambient, operating life is >1,000,000 cycles, switching time is 15 ms maximum and switching sequence is break-before-make. These switches meet MIL-E-5400 and Mil-S-3928.