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. 395-0453
Mfr. Part No.J01006A0837
HK$213.05
Each
units
BNC Plug to BNC Socket 20dB Straight 50Ω 0 → 1GHz - - - - - BNC Plug Socket
RS Stock No. 195-2996
Mfr. Part No.J01006A0835
HK$204.37
Each
units
BNC Plug to BNC Socket 6dB Straight 50Ω 0 → 1GHz - - - - - BNC Plug Socket
RS Stock No. 716-5084
Mfr. Part No.6610_SMA-50-2/199_NE
HK$640.46
Each
units
SMA Plug to Socket 10dB - 50Ω DC to 6GHz - - - - Yes SMA - -
RS Stock No. 285-9602
Mfr. Part No.R411810121
BrandRadiall
HK$441.51
Each
units
SMA Plug to Socket 10 dB Straight 50Ω DC to 18GHz Nickel Coaxial Gold Beryllium Copper - SMA Male Female
RS Stock No. 285-9595
Mfr. Part No.R411806121
BrandRadiall
HK$688.58
Each
units
SMA Plug to Socket 0.8 dB, 6 dB - 50Ω DC → 18GHz - - - - - SMA - -
RS Stock No. 285-9680
Mfr. Part No.R412706124
BrandRadiall
HK$384.29
Each
units
N Plug to N Socket 6dB Straight 50Ω 6GHz - - Gold over Nickel Beryllium Copper, Brass - N Female Male
RS Stock No. 285-9551
Mfr. Part No.R411810124
BrandRadiall
HK$293.27
Each
units
SMA Plug to Socket 10dB Straight 50Ω 6GHz - - Nickel Brass - SMA Male Socket
RS Stock No. 195-3012
Mfr. Part No.J01006A0836
HK$186.68
Each
units
BNC Plug to BNC Socket 10dB Straight 50Ω 0 → 1GHz - - - - - BNC Plug Socket
RS Stock No. 885-8416
Mfr. Part No.27-9300-20
HK$62.76
Each
units
BNC Plug to BNC Socket 20dB Straight 50Ω 0 → 2GHz Nickel - Gold Brass - BNC Plug Socket
RS Stock No. 195-2980
Mfr. Part No.J01006A0834
HK$215.45
Each
units
BNC Plug to BNC Socket 3dB Straight 50Ω 0 → 1GHz - - - - - BNC Plug Socket
RS Stock No. 494-868
Mfr. Part No.6806_N-50-1/1--_NE
HK$589.10
Each
units
N Plug to N Socket 6dB Straight 50Ω 6GHz - - Brass, Gold Beryllium Copper, Brass Yes N Plug Socket
RS Stock No. 285-9539
Mfr. Part No.R411803124
BrandRadiall
HK$203.99
Each
units
SMA Plug to Socket 3dB Straight 50Ω 6GHz - - Nickel Brass - SMA Male Socket
RS Stock No. 285-9567
Mfr. Part No.R411820124
BrandRadiall
HK$293.27
Each
units
SMA Plug to Socket 20dB Straight 50Ω 6GHz - - Nickel Brass - SMA Male Socket
RS Stock No. 886-3256
Mfr. Part No.FLN3G
HK$14.532
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
HK$531.36
Each
units
SMA Plug to Socket 30dB - 50Ω DC to 6GHz - - - - Yes SMA - -
RS Stock No. 494-834
Mfr. Part No.6806.19.A
HK$1,029.60
Each
units
SMA Plug to Socket 6dB - 50Ω DC → 18GHz - - - - Yes - - -
RS Stock No. 296-8015
Mfr. Part No.R412403124
BrandRadiall
HK$375.29
Each
units
BNC Plug to BNC Socket 3dB Straight 50Ω 3GHz - - Gold over Nickel Beryllium Copper, Brass - BNC Female Male
RS Stock No. 296-8021
Mfr. Part No.R412406124
BrandRadiall
HK$434.27
Each
units
BNC Plug to BNC Socket 6dB Straight 50Ω 3GHz - - Gold over Nickel Beryllium Copper, Brass - BNC Female Male
RS Stock No. 716-5066
Mfr. Part No.6620_SMA-50-1/199_NE
HK$666.60
Each
units
SMA Plug to Socket 20dB - 50Ω DC to 18GHz - - - - Yes SMA - -
RS Stock No. 296-8037
Mfr. Part No.R412410124
BrandRadiall
HK$471.48
Each
units
BNC Plug to BNC Socket 10dB Straight 50Ω 3GHz - - Gold over Nickel Beryllium Copper, Brass - BNC Female Male
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