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Extended Shift Thermopads®

EMC Technology’s ETVA Thermopads® are microwave absorptive attenuators which provide power dissipation that varies with temperature and operate in frequency ranges from DC to 3 GHz. The ETVA offers extended shift achieving greater temperature compensation. This surface mount, temperature variable attenuator requires no bias or control voltages and generates zero distortion. This product is available with various metallization styles and plating options including RoHS compliant lead free silver over nickel plating, 60/40 low temperature solder plating or 60/40 solder fused finish for easy reflow processing.

ETVA Specification Sheet
ETVA-F Specification Sheet
ETVA-S Specification Sheet

ETVA Packaging Specifications




Size 4.06mm x 3.68mm [0.160in x 0.145in]
Impedance 50 Ohms
Frequency Range DC to 3 GHz
TCA Tolerance ±0.001 dB/dB/°C
VSWR (Typical) 1.30 @ 1 GHz
Power Rating 2.0 Watts
Operating Temperature -55°C to 150°C
Substrate Alumina
Resistive Material Thick Film
Terminal Material Thick Film, Nickel Barrier wih Solder Plate or Lead Free Finish