25 Watt Attenuators


311-3G-25 Series


The 311-3G-25 Series of RF Coaxial Attenuators can be used for a broad range of applications form DC to 3 GHz. These attenuators are bi-directional and  robust, and can be used over a wide range of temperature and environmental conditions. Standard values include 6dB, 10dB, 15dB, 20dB and 30dB. For custom values, please contact our sales department.


  • Fixed Attenuator with a High degree of accuracy.
  • Various Attenuation values and connector options
  • Low VSWR across the band.
  • Low PIM.
  • ROHS Complaint.
  • Other Connector options available.
  • In stock and available immediately.

Electrical Specification

Freq Range:DC – 3 GHz
Attenuation:6dB 10dB 15dB 20dB 30dB
Accuracy:≤0.5 ≤0.7 ≤0.8 ≤0.8 ≤1.0
VSWR:< 1.20
Input Power:25 W (Avg) (Degrades by 1.5%/°C above 60°C)
PIM – 3rd:-120 dBc (2 Tone 43 dBm each)

Mechanical Specification

Connectors:Type-N Male/Female Other options available
Housing Finish:Aluminum Body
Temperature Range:-30°C to 80°C
Humidity:5% – 95%

© Innowave RF, LLC All Rights Reserved. All Specifications for Illustration purpose only.

For Complete Specifications, please download the PDF