RF Terminators

RF terminators are devices used to electrically terminate coaxial RF (radio frequency) ports. They are usually placed at the end of the transmission line to prevent an RF signal from being reflected.

RF terminators are designed to match the surge impedance (ratio of current and voltage) of the cable to help minimise signal reflections and power losses. Unused tap ports or coaxial faceplates in a home, for example, can create entry and exit paths, which affect performance.

How do RF terminators work?

RF terminators absorb the electrical energy of the signal as it reaches the cable ends and prevents the signal from being reflected so it doesn’t become noise. They ensure that current flows smoothly from one device to another.

What are RF terminators used for?

RF terminators play a critical role in high-frequency systems and circuits, especially when managing high-power signals. They can also be used to close open terminations that might otherwise allow parasitic signals to enter the circuit, such as at a T-junction.

RF terminators are available in many form factors with power ratings to match their sizes.


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Description Price Interface Type Gender Body Orientation Mounting Type Impedance Body Plating Cable Type Operating Frequency Average Power Rating Low Power Contact Material Contact Plating Termination Method
RS Stock No. 712-3282
Mfr. Part No.J01152A0011
$32.89
Each
units
SMA Male Straight - 50Ω Copper Nickel Gold Alloy - 0 → 6GHz 1W - Brass Copper, Gold Alloy, Nickel -
RS Stock No. 821-2567
Mfr. Part No.221629-1
$24.78
Each
units
BNC Male Straight - 50Ω - - - - - Brass Gold -
RS Stock No. 163-8325
Mfr. Part No.1400895-1
$1.298
Each (In a Bag of 1000)
units
BNC Plug to BNC Socket - - Panel Mount - - - - - - Brass Silver -
RS Stock No. 456-453
Mfr. Part No.1400895-1
$2.156
Each (In a Pack of 10)
units
BNC Plug to BNC Socket - - Panel Mount - - - - - - Brass Silver -
RS Stock No. 785-7761
Mfr. Part No.R404012000
BrandRadiall
$26.79
Each
units
BNC Male Straight Through Hole 75Ω - - 1GHz 1W - Brass Gold -
RS Stock No. 716-5056
Mfr. Part No.65_QLA-01-0-1/122_NE
$81.31
Each
units
QLA Male Straight - - Nickel - 0 → 1.4GHz 0.5W - Brass Gold over Nickel -
RS Stock No. 144-0920
Mfr. Part No.132360
BrandAmphenol
$5.16
Each
units
SMA Male Straight - 50Ω Gold - 0 → 18GHz 2W - Brass Gold -
RS Stock No. 179-2542
Mfr. Part No.R4041D5000
BrandRadiall
$79.95
Each
units
- Female Straight - 50Ω Nickel - 6GHz 2W - Beryllium Copper - -
RS Stock No. 716-5012
Mfr. Part No.6550.17.AA
$406.65
Each
units
N Male Straight - 50Ω Anodized - 0 → 5GHz 25W - Brass Gold -
RS Stock No. 164-9077
Mfr. Part No.1-1337470-0
$24.992
Each (In a Box of 50)
units
BNC Male Straight Cable Mount 75Ω Gold - 0 → 1GHz - - Brass Gold -
RS Stock No. 184-6234
Mfr. Part No.UM-LR-PC(40)
BrandHirose
$21.754
Each (In a Bag of 100)
units
- - - - - - - - - - - - -
RS Stock No. 494-739
Mfr. Part No.65_SMA-50-0-1/111_NE
$39.19
Each
units
SMA Male Straight - 50Ω Gold over Nickel - 0 → 18GHz 1W Yes Brass Gold over Nickel -
RS Stock No. 713-0899
Mfr. Part No.226176-4
$4.258
Each (In a Pack of 5)
units
- - - PCB Mount - - - - - - Brass - -
RS Stock No. 112-3154
Mfr. Part No.J01006A1269
$9.89
Each
units
BNC Male Straight - 75Ω - - - 0.5W - - - -
RS Stock No. 193-8619
Mfr. Part No.J01006A0013
$71.28
Each
units
- - Straight - 50Ω - - - - - - - -
RS Stock No. 712-3119
Mfr. Part No.J01026A0010
$185.68
Each
units
N Male Straight - 50Ω Copper Nickel Alloy, White Bronze - 0 → 18GHz 2W - Copper, Lead, Nickel Alloy Copper, Silver Alloy -
RS Stock No. 716-5022
Mfr. Part No.6560.41.AA
$835.90
Each
units
7/16 Male Straight - 50Ω Anodized - 0 → 5GHz 60W - Brass Silver -
RS Stock No. 716-5019
Mfr. Part No.65_N-50-0-51/113_NE
$32.73
Each
units
N Male Straight - 50Ω White Bronze - 0 → 6GHz 1W - Brass White Bronze -
RS Stock No. 712-3286
Mfr. Part No.J01152B0011
$42.46
Each
units
SMA Male Straight - 50Ω Copper Nickel Gold Alloy - 0 → 18GHz 1W - Brass, Lead Alloy Copper, Gold Alloy, Nickel -
RS Stock No. 193-8669
Mfr. Part No.J01152A0018
$23.94
Each
units
SMA Male Straight - 50Ω - - 0 → 6GHz 1W - Beryllium Copper, Copper Zinc Lead Alloy White Bronze -
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