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. 716-5097
Mfr. Part No.6820.17.A
R 1,817.23
Each
units
N Plug to N Socket 0.8 dB, 20 dB - 50Ω 12.4GHz - - - - Yes N - -
RS stock no. 716-5123
Mfr. Part No.6830.17.A
R 2,088.35
Each
units
N Plug to N Socket 1 dB, 30 dB - 50Ω 12.4GHz - - - - Yes N - -
RS stock no. 716-5090
Mfr. Part No.6630_SMA-50-2/199_NE
R 655.16
Each
units
SMA Plug to Socket 30dB - 50Ω DC to 6GHz - - - - Yes SMA - -
RS stock no. 285-9567
Mfr. Part No.R411820124
BrandRadiall
R 559.82
Each
units
SMA Plug to Socket 20dB Straight 50Ω 6GHz - - Nickel Brass - SMA Male Socket
RS stock no. 716-5078
Mfr. Part No.6806.17.A
R 1,837.58
Each
units
N Plug to N Socket 0.5 dB, 6 dB - 50Ω 12.4GHz - - - - Yes N - -
RS stock no. 296-8015
Mfr. Part No.R412403124
BrandRadiall
R 802.61
Each
units
BNC Plug to BNC Socket 3dB Straight 50Ω 3GHz - - Gold over Nickel Beryllium Copper, Brass - BNC Female Male
RS stock no. 716-5104
Mfr. Part No.6830.01.A
R 1,840.52
Each
units
BNC Plug to BNC Socket 1 dB, 30 dB - 50Ω 4GHz - - - - Yes BNC - -
RS stock no. 886-3256
Mfr. Part No.FLN3G
R 24.642
Each (In a Pack of 10)
units
F Plug to F Socket - Straight - 1GHz - - Nickel - - F Plug Socket
RS stock no. 285-9719
Mfr. Part No.R412720124
BrandRadiall
R 908.39
Each
units
N Plug to N Socket 20dB Straight 50Ω 6GHz - - Nickel Beryllium Copper, Brass - N Female Male
RS stock no. 285-9551
Mfr. Part No.R411810124
BrandRadiall
R 458.82
Each
units
SMA Plug to Socket 10dB Straight 50Ω 6GHz - - Nickel Brass - SMA Male Socket
RS stock no. 886-0241
Mfr. Part No.6-12FFPB
R 81.495
Each (In a Pack of 6)
units
F Plug to F Socket - Straight 75Ω - - - - - - F Plug Plug
RS stock no. 712-2942
Mfr. Part No.J01006A0024
R 1,805.44
Each
units
BNC Plug to BNC Socket 10dB - 50 Ω, 75 Ω 6GHz - - - - - BNC - -
RS stock no. 125-0327
Mfr. Part No.R415610000
BrandRadiall
R 2,963.75
Each
units
Coaxial 10dB Straight 50Ω DC-6GHz Nickel - Gold over Nickel Beryllium Copper Yes Coaxial Male Female
RS stock no. 716-5088
Mfr. Part No.6601_SMA-50-1/199_NE
R 1,509.90
Each
units
SMA Plug to Socket 1dB - 50Ω DC to 18GHz - - - - Yes SMA - -
RS stock no. 712-2930
Mfr. Part No.J01006A0022
R 1,500.67
Each
units
BNC Plug to BNC Socket 3dB - 50Ω 6GHz - - - - - BNC - -
RS stock no. 176-7266
Mfr. Part No.AT-120V
BrandHirose
R 658.24
Each
units
- 20dB Straight 50Ω 18GHz - - Gold Beryllium Copper - SMA Male Female
RS stock no. 712-3103
Mfr. Part No.J01026A0007
R 1,360.97
Each
units
N Plug to N Socket 10dB - 50Ω 1GHz - - - - - N - -
RS stock no. 716-5084
Mfr. Part No.6610_SMA-50-2/199_NE
R 1,228.56
Each
units
SMA Plug to Socket 10dB - 50Ω DC to 6GHz - - - - Yes SMA - -
RS stock no. 285-9539
Mfr. Part No.R411803124
BrandRadiall
R 433.43
Each
units
SMA Plug to Socket 3dB Straight 50Ω 6GHz - - Nickel Brass - SMA Male Socket
RS stock no. 712-2946
Mfr. Part No.J01006A0025
R 971.14
Each
units
BNC Plug to BNC Socket 20dB - 50Ω 6GHz - - - - - BNC - -