Features & BenefitsSmiths Interconnect is the world leader in temperature variable attenuators from DC through Ka Band, featuring our patented Thermopad line of products which compensate for gain variation over temperature. The Thermopad® (Patent # 5,332,981) is a totally passive, surface mountable temperature variable attenuator. It requires no bias or control voltages and does not generate distortion. The Thermopad can be used in place of a standard chip attenuator to combine level setting or buffering and temperature compensation in a single chip design. This will reduce component count, increase reliability, and lower costs. Applications include power amplifiers, mixers, MMIC amplifiers, directional couplers and diode detectors. Frequency Range from DC to 36 GHz Attenuation Values from 1 to 10dB Wire Bondable Connections Available Negative & Positive Coefficients of Attenuation Available Tape and Reel Packaging Available Space and Military Qualified Impedance 50 and 75 Ohms RoHS Compliant Option Available This media type is not supported by your browser.
TVA Offerings Smiths Interconnect Thermopad® ( Temperature Variable Attenuator) Offering Thermopad® Product Series Fixed Attenuator Equivalent Frequency Range Max Input Power CW Footprint Dimensions (Inches) Footprint Dimensions (mm) TVA TS03 DC-12.4 GHz 2.0 Watts 0.122 X 0.145 3.10 X 3.68 MTVA TS05 DC-18 GHz 200 Milliwatts 0.075 X 0.060 1.91 X 1.52 WTVA TS09 or TT9 DC-20 GHz 200 Milliwatts 0.060 X 0.075 1.52 X 1.91 KTVA KFA 16-36 GHz 200 Milliwatts 0.120 X 0.065 3.05 X 1.65 K2TVA Not Available 17-22 GHz and 27-32 GHz 200 Milliwatts See Brochure See Brochure AN5 AT5 DC-6 GHz 200 Millwatts 0.075 X 0.060 1.91 x 1.52 AN7 AT7 DC-6 GHz 100 Milliwatts 0.080 X 0.050 2.03 X 1.27
Documents & Literature Data SheetWhite PaperBrochureS-parametersApplications NotesK2TVA Chip Series Datasheets614 kBKTVA Chip Series Datasheets2883 kBTVA Chip Series Datasheets7509 kBHi-Rel Series Datasheets4932 kBWTVA Chip Series Datasheets2406 kBMTVA Chip Series Datasheets7760 kBAN Chip Series Datasheets1878 kBFixture Preparation and RF Test of SMT Board Level Components at High Frequencies White Paper970 kBMTVA Thermopad Series-Brochure (US)544 kBTVA Thermopad® Series Brochure469 kBVariable Attenuator Brochure168 kBSPL Series Attenuators and Thermopads1525 kBWTVA Thermopad Series Brochure (US)915 kBS-Parameter - 42TVA596 kBS-Parameter - AN71839 kBS-Parameter - MTVA Series2100 kBS-Parameter - MTVA W3 Series798 kBS-Parameters - K2TVA1272 kBS-Parameter-WTVA Series3083 kBS-Parameter-WTVA SMT Series3503 kBS-Parameter - KTVA1379 kBS-Parameter AN51989 kBS-Parameter TVA565 kBS-Parameter TVA W3645 kBS-Parameter KTVA1379 kBThermopad Amplifier Temperature Compensation152 kBThermopad Temperature Shift Reference Chart725 kBThermopad Attenuation Shift Due To Self-Heating144 kBChip Device Mounting Instructions166 kBRecommended Solder Reflow Temperature Profile for Lead-Free Parts147 kBTemperature Profile for RoHS Compliant Couplers136 kBRecommended Solder Reflow Temperature Profile for Leaded Parts146 kB