The HCM Series from Smiths Interconnect are Temperature Variable Attenuators that operate from DC to 12.4 GHz. They are available in attenuation levels from 0 to 10 dB in step sizes of 1 dB and can handle a CW input power of up to 200 mW. These fixed chip attenuators have a VSWR of less than 1.30:1 and have a temperature coefficient of attenuation from -0.009 to -0.003 dB/dB/°C. They contain both fixed and thermopad attenuators in the same footprint that gives the ultimate design flexibility to tailor the response over variations in temperature. These attenuators can be used in place of a standard chip attenuator to combine level setting or buffering and temperature compensation in a single chip design.
The HCM Series offers a totally passive solution in a solderable surface mount package with tape and reel or serialized waffle pack and are ideal for satellite communications, power amplifiers, up and down converters, transmitters and receivers, isolators/circulators, instrumentation, mixers, and directional couplers.
