RF Attenuators

RF attenuators act as resistors and are used to reduce the level of a signal within radio frequency applications and RF circuits. They have many benefits, including protecting a circuit stage from receiving a current that's too high. RF attenuators can also improve impedance match, ensuring power transfer from source to load is optimised.

Types of RF attenuators
RF attenuators come in three types:

  • Fixed RF attenuators provide an unchanging value where specific attenuation levels are needed.
  • Switched RF attenuators are made up of switches that allow varying levels of attenuation.
  • Variable RF attenuators are used when it's necessary to continuously change the level of a signal.


Choosing the right RF attenuators
To select the right RF attenuator a number of specifications need to be considered, such as attenuation, frequency and impedance. Attenuation is measured in decibels (dB) and depending on the type of attenuation you need this will either be fixed or within a range. RF attenuators are designed for devices with a certain impedance and it's important to match the impedance of the attenuator to the circuit where it will be used.
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Part Details Brand Interface Type Attenuation Body Orientation Impedance Operating Frequency Contact Plating Contact Material Connector Type Gender A Gender B
50Ω RF Attenuator Straight Coaxial Connector Coaxial 20dB, Operating Frequency 6GHz Radiall Coaxial 20dB Straight 50Ω 6GHz Gold over Nickel Beryllium Copper Coaxial Male Female
50Ω RF Attenuator Straight Coaxial Connector Coaxial 6dB, Operating Frequency 6GHz Radiall Coaxial 6dB Straight 50Ω 6GHz Gold over Nickel Beryllium Copper Coaxial Male Female
50Ω RF Attenuator SMA Connector SMA Plug to Socket 0.8 dB, 6 dB, Operating Frequency DC → 18GHz Radiall SMA Plug to Socket 0.8 dB, 6 dB - 50Ω DC → 18GHz - - SMA - -
50Ω RF Attenuator Straight SMA Connector SMA Plug to Socket 6dB, Operating Frequency 6GHz Radiall SMA Plug to Socket 6dB Straight 50Ω 6GHz Nickel Brass SMA Male Socket
50Ω RF Attenuator Straight SMA Connector SMA Plug to Socket 10dB, Operating Frequency 6GHz Radiall SMA Plug to Socket 10dB Straight 50Ω 6GHz Nickel Brass SMA Male Socket
50Ω RF Attenuator Straight SMA Connector SMA Plug to Socket 20dB, Operating Frequency 6GHz Radiall SMA Plug to Socket 20dB Straight 50Ω 6GHz Nickel Brass SMA Male Socket
50Ω RF Attenuator Straight SMA Connector SMA Plug to Socket 3dB, Operating Frequency 3GHz Radiall SMA Plug to Socket 3dB Straight 50Ω 3GHz Nickel Brass SMA Male Socket
50Ω RF Attenuator N Connector N Plug to N Socket 0.5 dB, 10 dB, Operating Frequency DC to 6GHz Radiall N Plug to N Socket 0.5 dB, 10 dB - 50Ω DC to 6GHz - - N - -
50Ω RF Attenuator Straight SMA Connector SMA Plug to Socket 3dB, Operating Frequency 18GHz Radiall SMA Plug to Socket 3dB Straight 50Ω 18GHz - Stainless Steel SMA Male Socket
50Ω RF Attenuator Straight SMA Connector SMA Plug to Socket 10 dB, Operating Frequency DC to 18GHz Radiall SMA Plug to Socket 10 dB Straight 50Ω DC to 18GHz Gold Beryllium Copper SMA Male Female
50Ω RF Attenuator Straight N Connector N Plug to N Socket 6dB, Operating Frequency 6GHz Radiall N Plug to N Socket 6dB Straight 50Ω 6GHz Gold over Nickel Beryllium Copper, Brass N Female Male
50Ω RF Attenuator Straight N Connector N Plug to N Socket 20dB, Operating Frequency 6GHz Radiall N Plug to N Socket 20dB Straight 50Ω 6GHz Nickel Beryllium Copper, Brass N Female Male
50Ω RF Attenuator SMA Connector SMA Plug to Socket 30dB, Operating Frequency DC to 6GHz Huber & Suhner SMA Plug to Socket 30dB - 50Ω DC to 6GHz - - SMA - -
50Ω RF Attenuator Straight BNC Connector BNC Plug to BNC Socket 20dB, Operating Frequency 0 → 2GHz Cinch Connectors BNC Plug to BNC Socket 20dB Straight 50Ω 0 → 2GHz Gold Brass BNC Plug Socket
50Ω RF Attenuator Straight BNC Connector BNC Plug to BNC Socket 10dB, Operating Frequency 0 → 1GHz Telegartner BNC Plug to BNC Socket 10dB Straight 50Ω 0 → 1GHz - - BNC Plug Socket
50Ω RF Attenuator Straight N Connector N Plug to N Socket 3dB, Operating Frequency 3GHz Radiall N Plug to N Socket 3dB Straight 50Ω 3GHz Gold over Nickel Beryllium Copper, Brass N Female Male
50Ω RF Attenuator Straight BNC Connector BNC Plug to BNC Socket 20dB, Operating Frequency 0 → 1GHz Telegartner BNC Plug to BNC Socket 20dB Straight 50Ω 0 → 1GHz - - BNC Plug Socket
50Ω RF Attenuator N Connector N Plug to N Socket 1 dB, 20 dB, Operating Frequency 18GHz Huber & Suhner N Plug to N Socket 1 dB, 20 dB - 50Ω 18GHz - - N - -
50Ω RF Attenuator Straight BNC Connector BNC Plug to BNC Socket 20dB, Operating Frequency 3GHz Radiall BNC Plug to BNC Socket 20dB Straight 50Ω 3GHz Gold over Nickel Beryllium Copper, Brass BNC Female Male
50Ω RF Attenuator Straight N Connector N Plug to N Socket 10dB, Operating Frequency 12.4GHz Radiall N Plug to N Socket 10dB Straight 50Ω 12.4GHz Gold over Nickel Beryllium Copper N Female Male
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