Smiths Interconnect

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Coaxial Thermopads®

Combining EMC Technology components with Florida RF Labs connector expertise to offer the popular temperature variable attenuator in a coaxial package.
The coaxial Thermopad® offers the same benefits as the standard temperature variable attenuator with the added benefit of an SMA plug to SMA jack interface.

42WTVA Qualification Summary (TP)
42WTVA Qualification Data


Specifications -  Click Part Numbers below for Specification sheets

Size 19.05 mm x 7.92 mm [0.750 in x 0.321 in] 22.10 mm x 7.92 mm [0.870 in x 0.312 in] 22.10 mm x 7.92 mm [0.870 in x 0.312 in]
Impedance 50 Ohms 50 Ohms 50 Ohms
Frequency Range DC to 6 GHz DC to 20 GHz 17 to 32 GHz
TCA Tolerance ±0.001 dB/dB/°C ±0.001 dB/dB/°C ±0.001 dB/dB/°C
VSWR (Typical) 1.35 @ 1 GHz 1.25 @ 1 GHz 1.35 @ 1 GHz
Power Rating 2.0 Watts 0.2 Watts 0.1 Watts
Operating Temperature -55°C to 150°C -55°C to 150°C -55°C to 150°C
Substrate Alumina Alumina Alumina
Resistive Materials Thick Film Thick Film Thick Film
Terminal Materials Plated Film Thick Plated Film Thick Plated Film Thick
Body and Nut Stainless Steel Stainless Steel Stainless Steel
Contact Beryllium Copper Beryllium Copper Beryllium Copper
Dielectric Tetraflouroethylene Tetraflouroethylene Tetraflouroethylene
Interface SMA Male / SMA Female 2.92mm Male / 2.92mm Female SMK Male / SMK Female
Body Passivated Passivated Passivated


Ordering Information