100Watt Low-PIM Attenuators


311L-XX-100 Series


311L-XX-100 Series of Low-PIM Fixed Attenuators are designed for high power applications from 698MHz – 2700MHz. These attenuators are guaranteed for Low-PIM performance in the entire frequency range. These units are rugged in their construction and can handle harsh environmental conditions. They are perfect for indoor and outdoor applications. Standard values include are listed in the specifications below. Custom attenuation values can also be manufactured on request.


  • Fixed Attenuator with a high degree of accuracy
  • Flat response from 698MHz – 2700MHz
  • Conventional Male(IN) / Female(OUT)
  • Outstanding PIM performance, -161dBc typical
  • Low VSWR across the band
  • Ease of Mounting with mounting brackets
  • RoHS Complaint
  • Weatherproof / Outdoor unit
  • In Stock to low lead time delivery

Electrical Specification

Attenuation3 dB 5 dB 6 dB 7 dB 10 dB 15 dB 20 dB 30 dB 40dB
Attenuation Accuracy±0.5 ±0.5 ±0.75 ±0.75 ±1.0 ±1.0 ±1.0 ±1.25 ±1.5
Frequency Range698MHz - 2700MHz
Return Loss20 dB (Typ)
Intermodulation (PIM - 3rd) -161 dBc (Typ) (2 Tones +43 dBm)
Impedance50 Ohms
Input Power200W (Average Power)

Mechanical Specification

Connectors: 7/16 DIN (D) / Mini-DIN (MD) / 4.3-10 (D43) / Type-N (N)
Housing Finish: Aluminum Body
Mounting Method:Mounting Bracket
Temperature Range: -35°C to 75°C
Relative Humidity: 5% - 95%
Environment: IP67

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

For Complete Specifications, please download the PDF