100 Watt Low-PIM In-Line Attenuators

-161dBc PIM, 600-2700MHZ, IP67


311L-XX-100 Series of In-Line Low-PIM Fixed Attenuators are designed for 100W applications from 600MHz – 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 In-Line Attenuator with a high degree of accuracy
  • Small Form-Factor and Light Weight
  • Flat response from 600MHz – 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

Attenuation Accuracy±0.5±0.5±0.5±1.0±1.0±1.0±1.25±1.25±1.5
Frequency Range600MHz - 2700MHz
Return Loss20 dB (Typ)
Intermodulation (PIM - 3rd)-161 dBc (Typ) (2 Tones +43 dBm)
Impedance50 Ohms
Input Power100W (Average Power)

Mechanical Specification

Connectors: 7/16 DIN(D) / Mini-DIN(MD) / 4.3-10(D43) / Type-N(N) / Nex-10(X10)
Housing Finish: Aluminum Body
Mounting Method:Mounting Bracket
Temperature Range: -35°C to 75°C
Relative Humidity:5% - 95%
Weight7.75 lbs
Environment: IP67


Part No.:Part #:311L-XX-100-*

XX - Attenuation Value

* - Connector Option

Please contact our sales department at 737-200-7090 or for any custom requirements.

© Innowave RF, LLC. All Rights Reserved. Specs can change without notice. Drawings are for reference purpose only.