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. 285-9551
Mfr. Part No.R411810124
BrandRadiall
$46.32
Each
units
SMA Plug to Socket 10dB Straight 50Ω 6GHz - - Nickel Brass - SMA Male Socket
RS Stock No. 885-8416
Mfr. Part No.27-9300-20
$12.19
Each
units
BNC Plug to BNC Socket 20dB Straight 50Ω 0 → 2GHz Nickel - Gold Brass - BNC Plug Socket
RS Stock No. 716-5123
Mfr. Part No.6830.17.A
$252.19
Each
units
N Plug to N Socket 1 dB, 30 dB - 50Ω 12.4GHz - - - - Yes N - -
RS Stock No. 395-0453
Mfr. Part No.J01006A0837
$51.35
Each
units
BNC Plug to BNC Socket 20dB Straight 50Ω 0 → 1GHz - - - - - BNC Plug Socket
RS Stock No. 886-0566
Mfr. Part No.27-9300-6
$11.36
Each
units
BNC Plug to BNC Socket 6dB Straight 50Ω 0 → 2GHz Nickel - Gold Brass - BNC Plug Socket
RS Stock No. 285-9545
Mfr. Part No.R411806124
BrandRadiall
$53.36
Each
units
SMA Plug to Socket 6dB Straight 50Ω 6GHz - - Nickel Brass - SMA Male Socket
RS Stock No. 195-3012
Mfr. Part No.J01006A0836
$47.21
Each
units
BNC Plug to BNC Socket 10dB Straight 50Ω 0 → 1GHz - - - - - BNC Plug Socket
RS Stock No. 716-5132
Mfr. Part No.6830.17.B
$216.20
Each
units
N Plug to N Socket 1.5 dB, 30 dB - 50Ω 18GHz - - - - Yes N - -
RS Stock No. 885-8006
Mfr. Part No.27-9300-3
$10.99
Each
units
BNC Plug to BNC Socket 3dB Straight 50Ω 0 → 2GHz Nickel - Gold Brass - BNC Plug Socket
RS Stock No. 285-9618
Mfr. Part No.R411820121
BrandRadiall
$120.54
Each
units
SMA Plug to Socket 20dB Straight 50Ω 18GHz - - - Stainless Steel - SMA Male Socket
RS Stock No. 716-5097
Mfr. Part No.6820.17.A
$155.95
Each
units
N Plug to N Socket 0.8 dB, 20 dB - 50Ω 12.4GHz - - - - Yes N - -
RS Stock No. 285-9595
Mfr. Part No.R411806121
BrandRadiall
$120.54
Each
units
SMA Plug to Socket 0.8 dB, 6 dB - 50Ω DC → 18GHz - - - - - SMA - -
RS Stock No. 285-9539
Mfr. Part No.R411803124
BrandRadiall
$55.64
Each
units
SMA Plug to Socket 3dB Straight 50Ω 6GHz - - Nickel Brass - SMA Male Socket
RS Stock No. 716-5062
Mfr. Part No.6606_SMA-50-1/199_NE
$137.62
Each
units
SMA Plug to Socket 6dB - 50Ω DC to 18GHz - - - - Yes SMA - -
RS Stock No. 716-5081
Mfr. Part No.6606_SMA-50-2/199_NE
$117.62
Each
units
SMA Plug to Socket 6dB - 50Ω DC to 6GHz - - - - Yes SMA - -
RS Stock No. 125-0327
Mfr. Part No.R415610000
BrandRadiall
$227.31
Each
units
Coaxial 10dB Straight 50Ω DC-6GHz Nickel - Gold over Nickel Beryllium Copper Yes Coaxial Male Female
RS Stock No. 494-868
Mfr. Part No.6806_N-50-1/1--_NE
$112.59
Each
units
N Plug to N Socket 6dB Straight 50Ω 6GHz - - Brass, Gold Beryllium Copper, Brass Yes N Plug Socket
RS Stock No. 195-2980
Mfr. Part No.J01006A0834
$51.61
Each
units
BNC Plug to BNC Socket 3dB Straight 50Ω 0 → 1GHz - - - - - BNC Plug Socket
RS Stock No. 285-9573
Mfr. Part No.R411803121
BrandRadiall
$100.96
Each
units
SMA Plug to Socket 3dB Straight 50Ω 18GHz - - - Stainless Steel - SMA Male Socket
RS Stock No. 285-9567
Mfr. Part No.R411820124
BrandRadiall
$53.36
Each
units
SMA Plug to Socket 20dB Straight 50Ω 6GHz - - Nickel Brass - SMA Male Socket
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