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. 176-7267
Mfr. Part No.AT-110V
BrandHirose
HK$390.32
Each
units
- 10dB Straight 50Ω 18GHz - - Gold Beryllium Copper - SMA Male Female
RS Stock No. 716-5062
Mfr. Part No.6606_SMA-50-1/199_NE
HK$819.76
Each
units
SMA Plug to Socket 6dB - 50Ω DC to 18GHz - - - - Yes SMA - -
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. 716-5117
Mfr. Part No.6605_SMA-50-1/199_NE
HK$819.76
Each
units
SMA Plug to Socket 5dB - 50Ω DC to 18GHz - - - - Yes SMA - -
RS Stock No. 712-2949
Mfr. Part No.J01006A0023
HK$1,106.22
Each
units
BNC Plug to BNC Socket 6dB - 50Ω 6GHz - - - - - BNC - -
RS Stock No. 716-5078
Mfr. Part No.6806.17.A
HK$1,050.65
Each
units
N Plug to N Socket 0.5 dB, 6 dB - 50Ω 12.4GHz - - - - Yes N - -
RS Stock No. 494-799
Mfr. Part No.6830.19.A
HK$1,072.32
Each
units
SMA Plug to Socket 30dB - 50Ω DC → 18GHz - - - - Yes - - -
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
RS Stock No. 885-7517
Mfr. Part No.ATT-0218-20-NNN-02
HK$1,014.59
Each
units
N Plug to N Socket 20dB Straight 50Ω 12.4GHz - - - - Yes N Plug Socket
RS Stock No. 296-8093
Mfr. Part No.R412520124
BrandRadiall
HK$494.08
Each
units
TNC Plug to TNC Socket 20dB Straight 50Ω 3GHz - - Gold Brass - TNC Female Male
RS Stock No. 494-830
Mfr. Part No.6820.19.A
HK$1,165.34
Each
units
SMA Plug to Socket 20dB - 50Ω DC → 18GHz - - - - Yes - - -
RS Stock No. 285-9725
Mfr. Part No.R414703000
BrandRadiall
HK$801.01
Each
units
N Plug to N Socket 0.7 dB, 3 dB - 50Ω DC → 12.4GHz - - - - - N - -
RS Stock No. 285-9797
Mfr. Part No.R414720161
BrandRadiall
HK$1,947.66
Each
units
N Plug to N Socket 20dB Straight 50Ω 18GHz - - Gold over Nickel Beryllium Copper - N Female Male
RS Stock No. 285-9753
Mfr. Part No.R414720000
BrandRadiall
HK$779.31
Each
units
N Plug to N Socket 20dB Straight 50Ω 12.4GHz - - Nickel Beryllium Copper - N Female Male
RS Stock No. 712-2942
Mfr. Part No.J01006A0024
HK$1,048.59
Each
units
BNC Plug to BNC Socket 10dB - 50 Ω, 75 Ω 6GHz - - - - - BNC - -
RS Stock No. 176-7268
Mfr. Part No.AT-106V
BrandHirose
HK$390.32
Each
units
- 6dB Straight 50Ω 18GHz - - Gold Beryllium Copper - SMA Male Female
RS Stock No. 716-5066
Mfr. Part No.6620_SMA-50-1/199_NE
HK$819.76
Each
units
SMA Plug to Socket 20dB - 50Ω DC to 18GHz - - - - Yes SMA - -
RS Stock No. 712-3327
Mfr. Part No.J01156A0011
HK$734.03
Each
units
SMA Plug to Socket 3dB - 50Ω 10GHz - - - - - SMA - -
RS Stock No. 716-5081
Mfr. Part No.6606_SMA-50-2/199_NE
HK$668.90
Each
units
SMA Plug to Socket 6dB - 50Ω DC to 6GHz - - - - Yes SMA - -
RS Stock No. 716-5094
Mfr. Part No.6810.01.A
HK$1,127.07
Each
units
BNC Plug to BNC Socket 0.5 dB, 10 dB - 50Ω 4GHz - - - - Yes BNC - -
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