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. 712-3333
Mfr. Part No.J01156A0041
SGD156.26
Each
units
SMA Plug to Socket 20dB - 50Ω 10GHz - - - - - SMA - -
RS Stock No. 886-0560
Mfr. Part No.27-9300-10
SGD10.044
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. 716-5094
Mfr. Part No.6810.01.A
SGD274.66
Each
units
BNC Plug to BNC Socket 0.5 dB, 10 dB - 50Ω 4GHz - - - - Yes BNC - -
RS Stock No. 285-9595
Mfr. Part No.R411806121
BrandRadiall
SGD95.38
Each
units
SMA Plug to Socket 0.8 dB, 6 dB - 50Ω DC → 18GHz - - - - - SMA - -
RS Stock No. 885-7517
Mfr. Part No.ATT-0218-20-NNN-02
SGD174.14
Each
units
N Plug to N Socket 20dB Straight 50Ω 12.4GHz - - - - Yes N Plug Socket
RS Stock No. 716-5104
Mfr. Part No.6830.01.A
SGD264.10
Each
units
BNC Plug to BNC Socket 1 dB, 30 dB - 50Ω 4GHz - - - - Yes BNC - -
RS Stock No. 285-9719
Mfr. Part No.R412720124
BrandRadiall
SGD63.08
Each
units
N Plug to N Socket 20dB Straight 50Ω 6GHz - - Nickel Beryllium Copper, Brass - N Female Male
RS Stock No. 716-5101
Mfr. Part No.6820.17.B
SGD384.01
Each
units
N Plug to N Socket 1 dB, 20 dB - 50Ω 18GHz - - - - Yes N - -
RS Stock No. 285-9680
Mfr. Part No.R412706124
BrandRadiall
SGD64.06
Each
units
N Plug to N Socket 6dB Straight 50Ω 6GHz - - Gold over Nickel Beryllium Copper, Brass - N Female Male
RS Stock No. 494-802
Mfr. Part No.6806.17.B
SGD293.41
Each
units
N Plug to N Socket 0.8 dB, 6 dB - 50Ω 18GHz - - - - Yes N - -
RS Stock No. 886-3256
Mfr. Part No.FLN3G
SGD2.465
Each (In a Pack of 10)
units
F Plug to F Socket - Straight - 1GHz - - Nickel - - F Plug Socket
RS Stock No. 716-5088
Mfr. Part No.6601_SMA-50-1/199_NE
SGD147.86
Each
units
SMA Plug to Socket 1dB - 50Ω DC to 18GHz - - - - Yes SMA - -
RS Stock No. 712-2949
Mfr. Part No.J01006A0023
SGD169.72
Each
units
BNC Plug to BNC Socket 6dB - 50Ω 6GHz - - - - - BNC - -
RS Stock No. 886-0241
Mfr. Part No.6-12FFPB
SGD8.745
Each (In a Pack of 6)
units
F Plug to F Socket - Straight 75Ω - - - - - - F Plug Plug
RS Stock No. 494-913
Mfr. Part No.6803.19.A
SGD205.32
Each
units
SMA Plug to Socket 3dB - 50Ω DC to 18GHz - - - - Yes SMA - -
RS Stock No. 176-7218
Mfr. Part No.AT-105V
BrandHirose
SGD68.99
Each
units
- 5dB Straight 50Ω 18GHz - - Gold Beryllium Copper - SMA Male Female
RS Stock No. 712-3015
Mfr. Part No.J01016A0006
SGD128.38
Each
units
TNC Plug to TNC Socket 10dB - 50 Ω, 75 Ω 10GHz - - - - - TNC - -
RS Stock No. 712-2946
Mfr. Part No.J01006A0025
SGD96.87
Each
units
BNC Plug to BNC Socket 20dB - 50Ω 6GHz - - - - - BNC - -
RS Stock No. 712-3100
Mfr. Part No.J01026A0006
SGD124.61
Each
units
N Plug to N Socket 3dB - 50Ω 1GHz - - - - - N - -
RS Stock No. 712-3107
Mfr. Part No.J01026A0008
SGD125.26
Each
units
N Plug to N Socket 14dB - 50Ω 1GHz - - - - - N - -
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