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K-Band Chip Attenuators

The KFA is a high frequency, wire bondable chip attenuator. Designed with the KTVA footprint in mind this component offers a flat attenuation from 16-36 GHz. The KFA chip attenuator can handle 200mW and is available in 1 -10 dB with an operating temperature from -55 to +150 ºC. The KFA is also available for high-reliability applications under the HRKFA part number with Group A, B and C life testing according to Mil-PRF-55342. This attenuator is available with gold wire bondable terminals and a platinum silver, solder attachable ground plane in an ultra miniature chip size 0.065 x 0.120 inches (1.65mm x 3.05mm).

KFA-SMTF series is one of our latest millimeter wave products.  Providing the same high performance as the wire bondable series in a surface-mountable package, KFA-SMTF is compatible with high-speed automated assembly process.  The unique attenuator design ensures high performance repeatability and high tolerance to assembly variability.
Our K-band attenuators have been incorporated into various commercial wireless and high reliability applications, including point-to-point radios and satellite communication systems. 

KFA Specification Sheet
KFA-SMTF Specification Sheet

Packaging Specifications



  KFA Series KFA-SMTF Series
Size 3.05mm x 1.65mm [0.120in x 0.065in] 3.05mm x 1.65mm [0.120in x 0.065in]
Impedance 50 Ohms 50 Ohms
Frequency Range 16 to 36 GHz 18 to 36 GHz
VSWR (Typical) 1.35 1.35
Power Rating 200 Milliwatts 200 Milliwatts
Operating Temperature -55°C to 150°C -55°C to 150°C
Substrate Alumina Alumina
Resistive Material Thin Film Thin Film
Terminal Material Thick Film, Bondable Gold or Lead Free Finish Thick Film, Bondable Gold or Lead Free Finish