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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Description Price Interface Type Attenuation Body Orientation Impedance Operating Frequency Body Plating Cable Type Contact Plating Contact Material Low Power Connector Type Gender A Gender B
RS Stock No. 285-9602
Mfr. Part No.R411810121
BrandRadiall
TWD1,724.00
Each
units
SMA Plug to Socket 10 dB Straight 50Ω DC to 18GHz Nickel Coaxial Gold Beryllium Copper - SMA Male Female
RS Stock No. 285-9618
Mfr. Part No.R411820121
BrandRadiall
TWD2,681.00
Each
units
SMA Plug to Socket 20dB Straight 50Ω 18GHz - - - Stainless Steel - SMA Male Socket
RS Stock No. 285-9573
Mfr. Part No.R411803121
BrandRadiall
TWD2,354.00
Each
units
SMA Plug to Socket 3dB Straight 50Ω 18GHz - - - Stainless Steel - SMA Male Socket
RS Stock No. 285-9539
Mfr. Part No.R411803124
BrandRadiall
TWD679.00
Each
units
SMA Plug to Socket 3dB Straight 50Ω 6GHz - - Nickel Brass - SMA Male Socket
RS Stock No. 285-9545
Mfr. Part No.R411806124
BrandRadiall
TWD639.00
Each
units
SMA Plug to Socket 6dB Straight 50Ω 6GHz - - Nickel Brass - SMA Male Socket
RS Stock No. 125-0326
Mfr. Part No.R415603000
BrandRadiall
TWD5,349.00
Each
units
Coaxial 3dB Straight 50Ω DC-6GHz Nickel - Gold over Nickel Beryllium Copper Yes Coaxial Male Female
RS Stock No. 285-9551
Mfr. Part No.R411810124
BrandRadiall
TWD1,166.00
Each
units
SMA Plug to Socket 10dB Straight 50Ω 6GHz - - Nickel Brass - SMA Male Socket
RS Stock No. 296-8037
Mfr. Part No.R412410124
BrandRadiall
TWD1,568.00
Each
units
BNC Plug to BNC Socket 10dB Straight 50Ω 3GHz - - Gold over Nickel Beryllium Copper, Brass - BNC Female Male
RS Stock No. 285-9725
Mfr. Part No.R414703000
BrandRadiall
TWD3,238.00
Each
units
N Plug to N Socket 0.7 dB, 3 dB - 50Ω DC → 12.4GHz - - - - - N - -
RS Stock No. 296-8021
Mfr. Part No.R412406124
BrandRadiall
TWD2,199.00
Each
units
BNC Plug to BNC Socket 6dB Straight 50Ω 3GHz - - Gold over Nickel Beryllium Copper, Brass - BNC Female Male
RS Stock No. 285-9781
Mfr. Part No.R414710161
BrandRadiall
TWD7,715.00
Each
units
N Plug to N Socket 10dB Straight 50Ω 18GHz - - Gold over Nickel Beryllium Copper - N Female Male
RS Stock No. 285-9696
Mfr. Part No.R412710124
BrandRadiall
TWD985.00
Each
units
N Plug to N Socket 0.5 dB, 10 dB - 50Ω DC to 6GHz - - - - - N - -
RS Stock No. 285-9797
Mfr. Part No.R414720161
BrandRadiall
TWD8,650.00
Each
units
N Plug to N Socket 20dB Straight 50Ω 18GHz - - Gold over Nickel Beryllium Copper - N Female Male
RS Stock No. 285-9567
Mfr. Part No.R411820124
BrandRadiall
TWD1,097.00
Each
units
SMA Plug to Socket 20dB Straight 50Ω 6GHz - - Nickel Brass - SMA Male Socket
RS Stock No. 285-9674
Mfr. Part No.R412703124
BrandRadiall
TWD985.00
Each
units
N Plug to N Socket 3dB Straight 50Ω 3GHz - - Gold over Nickel Beryllium Copper, Brass - N Female Male
RS Stock No. 285-9747
Mfr. Part No.R414710000
BrandRadiall
TWD3,237.00
Each
units
N Plug to N Socket 10dB Straight 50Ω 12.4GHz - - Gold over Nickel Beryllium Copper - N Female Male
RS Stock No. 296-8087
Mfr. Part No.R412510124
BrandRadiall
TWD1,590.00
Each
units
TNC Plug to TNC Socket 10dB Straight 50Ω 3GHz - - Gold Brass - TNC Female Male
RS Stock No. 285-9753
Mfr. Part No.R414720000
BrandRadiall
TWD3,237.00
Each
units
N Plug to N Socket 20dB Straight 50Ω 12.4GHz - - Nickel Beryllium Copper - N Female Male
RS Stock No. 285-9731
Mfr. Part No.R414706000
BrandRadiall
TWD3,238.00
Each
units
N Plug to N Socket 6dB Straight 50Ω 12.4GHz - - Gold over Nickel Beryllium Copper - N Female Male
RS Stock No. 296-8059
Mfr. Part No.R412503124
BrandRadiall
TWD1,590.00
Each
units
TNC Plug to TNC Socket 3dB Straight 50Ω 3GHz - - Gold Brass - TNC Female Male