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Thermopad®

Temperature Variable Attenuators

Thermopad® products are a totally passive, easy to implement solution for gain compensation designed specifically for demanding high reliability applications. 

Features & Benefits

Smiths 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 

TVA Offerings

Smiths Interconnect Thermopad® ( Temperature Variable Attenuator) Offering
Series Fixed
Attenuator
Equivalent
Freq
Range 
Max Input
Power CW 
Footprint
Dimensions
Click links below for datasheets
TVA  TS03 DC-6 GHz 2.0 Watts 0.122 X 0.145 (in)
3.10 X 3.68 (mm)
MTVA TS05 DC-18 GHz 200 mW 0.075 X 0.060 (in)
1.91 X 1.52 (mm)
WTVA TS09 or TT9 DC-20 GHz 200 mW 0.060 X 0.075 (in)
1.52 X 1.91 (mm)
KTVA KFA 16-36 GHz 200 mW 0.120 X 0.065 (in)
3.05 X 1.65 (mm)
K2TVA Not Available

17-22 GHz
and
27-32 GHz

200 mW See
Brochure
AN5 AT5 DC-6 GHz 200 mW 0.075 X 0.060 (in)
1.91 x 1.52 (mm)
AN7 AT7 DC-6 GHz 100 mW 0.080 X 0.050 (in)
2.03 X 1.27 (mm)
Hi-Rel        

 

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