5 Watt In-Line Attenuators

DC-3000MHZ, IP64


311-XX-5 Series of In-Line Fixed Attenuators are designed for 5W applications from DC – 3000MHz. These attenuators are guaranteed for stable performance in the entire frequency range. These units are rugged in their construction and can handle day-to-day wear and tear in indoor 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 DC – 3000MHz
  • Conventional Male(IN) / Female(OUT)
  • Low VSWR across the band
  • RoHS Complaint
  • Indoor unit
  • Outdoor units available on request
  • In Stock to low lead time delivery

Electrical Specification

Attenuation Accuracy±0.30±0.30±0.50±0.50±0.50±0.60±0.60±0.75±0.75±0.75±0.80
Frequency RangeDC - 3000MHz
Return Loss20 dB (Typ)
Impedance50 Ohms
Input Power5W (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: -30°C to 65°C
Weight0.25 lbs
Environment: IP64


Part No.:Part #:311-XX-5-*

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.