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 doesnt 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. 263-2716
Mfr. Part No.R404101000W
BrandRadiall
€3.96
Each
units
SMA Male Straight - 50Ω - - 0 → 4GHz 1W - - - -
RS Stock No. 112-3148
Mfr. Part No.J01006A1268
€5.90
Each
units
BNC Male Straight - 50Ω - - - 0.5W - - - -
RS Stock No. 144-0920
Mfr. Part No.132360
BrandAmphenol
€2.51
Each
units
SMA Male Straight - 50Ω Gold - 0 → 18GHz 2W - Brass Gold -
RS Stock No. 163-8325
Mfr. Part No.1400895-1
€0.634
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
€1.327
Each (In a Pack of 10)
units
BNC Plug to BNC Socket - - Panel Mount - - - - - - Brass Silver -
RS Stock No. 143-9691
Mfr. Part No.132360
BrandAmphenol
€1.752
Each (In a Bag of 500)
units
SMA Male Straight - 50Ω Gold - 0 → 18GHz 2W - Brass Gold -
RS Stock No. 131-202
Mfr. Part No.996073
BrandDomocare
€6.24
Each
units
BNC Male Straight - 75Ω - - - 1W - Brass Gold -
RS Stock No. 112-3665
Mfr. Part No.80.5420.017
BrandIMS
€7.18
Each
units
- - Right Angle PCB Mount - - - - - - - - -
RS Stock No. 712-3113
Mfr. Part No.J01026A0011
€131.99
Each
units
N Male Straight - 50Ω Copper Nickel Alloy, White Bronze - 0 → 18GHz 10W - Copper, Lead, Nickel Alloy Copper, Silver Alloy -
RS Stock No. 716-5028
Mfr. Part No.65_SMB-50-0-1/111_NE
€48.61
Each
units
SMB Male Straight - 50Ω Gold over Nickel - 0 → 4GHz 0.5W - Beryllium Copper Gold over Nickel -
RS Stock No. 546-4695
BrandRS PRO
€11.89
Each
units
BNC Female, Male Straight Through Hole 50Ω Silver - 0 → 0.5GHz 2W - Brass Gold -
RS Stock No. 277-9449
Mfr. Part No.3840-50
BrandFluke
€9.13
Each
units
BNC Male Straight - 50Ω - - 500MHz 0.5W - Brass Gold -
RS Stock No. 712-2936
Mfr. Part No.J01006A0021
€40.59
Each
units
BNC Female Straight - 50Ω - - 0 → 4GHz 1W - - - -
RS Stock No. 164-9077
Mfr. Part No.1-1337470-0
€12.195
Each (In a Box of 50)
units
BNC Male Straight Cable Mount 75Ω Gold - 0 → 1GHz - - Brass Gold -
RS Stock No. 821-2567
Mfr. Part No.221629-1
€6.84
Each
units
BNC Male Straight - 50Ω - - - - - Brass Gold -
RS Stock No. 125-0325
Mfr. Part No.R404759000
BrandRadiall
€194.79
Each
units
Coaxial Female Straight - 50Ω Nickel - DC-6GHz 30W Yes Beryllium Copper Gold over Nickel -
RS Stock No. 546-4673
BrandRS PRO
€2.70
Each
units
BNC Male Straight - 50Ω Silver - 0 → 1GHz 0.5W - Brass Gold -
RS Stock No. 846-6691
Mfr. Part No.1-1337463-0
€4.63
Each
units
BNC Male Straight - 50Ω Silver - 0 → 1GHz 0.5W - Brass (Center Contact) Silver (Center Contact) -
RS Stock No. 112-3851
Mfr. Part No.J01006A0003
€14.30
Each
units
BNC - - - - - - - - - - - -
RS Stock No. 700-9316
Mfr. Part No.B1004A1-ND3G-75R-0.01-1W
BrandAmphenol
€4.45
Each
units
BNC Male Straight - 75Ω Nickel over Copper - - - - Brass Gold over Nickel -
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