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. 716-5088
Mfr. Part No.6601_SMA-50-1/199_NE
MYR383.98
Each
units
SMA Plug to Socket 1dB - 50Ω DC to 18GHz - - - - Yes SMA - -
RS Stock No. 716-5110
Mfr. Part No.6602_SMA-50-2/199_NE
MYR319.67
Each
units
SMA Plug to Socket 2dB - 50Ω DC to 6GHz - - - - Yes SMA - -
RS Stock No. 195-2996
Mfr. Part No.J01006A0835
MYR146.35
Each
units
BNC Plug to BNC Socket 6dB Straight 50Ω 0 → 1GHz - - - - - BNC Plug Socket
RS Stock No. 494-799
Mfr. Part No.6830.19.A
MYR555.08
Each
units
SMA Plug to Socket 30dB - 50Ω DC → 18GHz - - - - Yes - - -
RS Stock No. 395-0453
Mfr. Part No.J01006A0837
MYR146.29
Each
units
BNC Plug to BNC Socket 20dB Straight 50Ω 0 → 1GHz - - - - - BNC Plug Socket
RS Stock No. 494-824
Mfr. Part No.6810.19.A
MYR555.08
Each
units
SMA Plug to Socket 10dB - 50Ω DC → 18GHz - - - - Yes - - -
RS Stock No. 886-0560
Mfr. Part No.27-9300-10
MYR32.228
Each (In a Pack of 10)
units
BNC Plug to BNC Socket 10dB Straight 50Ω 0 → 2GHz Nickel - Gold Brass - BNC Plug Socket
RS Stock No. 285-9602
Mfr. Part No.R411810121
BrandRadiall
MYR329.12
Each
units
SMA Plug to Socket 10 dB Straight 50Ω DC to 18GHz Nickel Coaxial Gold Beryllium Copper - SMA Male Female
RS Stock No. 285-9573
Mfr. Part No.R411803121
BrandRadiall
MYR322.54
Each
units
SMA Plug to Socket 3dB Straight 50Ω 18GHz - - - Stainless Steel - SMA Male Socket
RS Stock No. 886-3256
Mfr. Part No.FLN3G
MYR7.211
Each (In a Pack of 10)
units
F Plug to F Socket - Straight - 1GHz - - Nickel - - F Plug Socket
RS Stock No. 716-5090
Mfr. Part No.6630_SMA-50-2/199_NE
MYR313.33
Each
units
SMA Plug to Socket 30dB - 50Ω DC to 6GHz - - - - Yes SMA - -
RS Stock No. 885-8416
Mfr. Part No.27-9300-20
MYR33.69
Each
units
BNC Plug to BNC Socket 20dB Straight 50Ω 0 → 2GHz Nickel - Gold Brass - BNC Plug Socket
RS Stock No. 712-3330
Mfr. Part No.J01156A0031
MYR348.89
Each
units
SMA Plug to Socket 10dB - 50Ω 10GHz - - - - - SMA - -
RS Stock No. 277-9461
Mfr. Part No.4119-50
BrandFluke
MYR292.00
Each
units
BNC Plug to BNC Socket - Straight 50Ω 500MHz - - Gold Beryllium Copper, Brass - BNC Plug Socket
RS Stock No. 285-9674
Mfr. Part No.R412703124
BrandRadiall
MYR200.53
Each
units
N Plug to N Socket 3dB Straight 50Ω 3GHz - - Gold over Nickel Beryllium Copper, Brass - N Female Male
RS Stock No. 716-5132
Mfr. Part No.6830.17.B
MYR958.86
Each
units
N Plug to N Socket 1.5 dB, 30 dB - 50Ω 18GHz - - - - Yes N - -
RS Stock No. 712-3129
Mfr. Part No.J01026A0020
MYR728.16
Each
units
N Plug to N Socket 10dB - 50Ω 10GHz - - - - - N - -
RS Stock No. 712-3333
Mfr. Part No.J01156A0041
MYR527.23
Each
units
SMA Plug to Socket 20dB - 50Ω 10GHz - - - - - SMA - -
RS Stock No. 716-5075
Mfr. Part No.6630_SMA-50-1/199_NE
MYR383.98
Each
units
SMA Plug to Socket 30dB - 50Ω DC to 18GHz - - - - Yes SMA - -
RS Stock No. 195-3012
Mfr. Part No.J01006A0836
MYR208.08
Each
units
BNC Plug to BNC Socket 10dB Straight 50Ω 0 → 1GHz - - - - - BNC Plug Socket
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