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. 738-7543
Mfr. Part No.H01000A0207
$9.81
Each
units
Cable Female Right Angle PCB Mount - - RG174/U, RG188 A/U, RG316/U 0 → 4GHz - - Brass Gold -
RS Stock No. 700-9650
Mfr. Part No.TMN0112U1-3G-05
BrandAmphenol
$8.20
Each
units
- - Right Angle PCB Mount - Gold over Nickel RG174/U, RG188 A/U, RG316/U - - - Copper Gold over Nickel -
RS Stock No. 773-7490
Mfr. Part No.APH-HDBNCJ-T
BrandAmphenol
$45.50
Each
units
BNC Female Straight - 75Ω - - 3GHz 1W - Beryllium Copper Gold -
RS Stock No. 296-7977
Mfr. Part No.R404121000
BrandRadiall
$25.89
Each
units
TNC Male Straight - 50Ω - - 0 → 4GHz 1W - - - -
RS Stock No. 716-5040
Mfr. Part No.6550.41.AB
$351.45
Each
units
7/16 Male Straight - 50Ω Anodized - 0 → 2GHz 25W - Brass Silver -
RS Stock No. 712-2936
Mfr. Part No.J01006A0021
$57.71
Each
units
BNC Female Straight - 50Ω - - 0 → 4GHz 1W - - - -
RS Stock No. 819-4197
Mfr. Part No.32S15R-1,0E3
$61.60
Each
units
SMA Male Straight - 50Ω - - 0 → 18GHz 1W - Brass Gold -
RS Stock No. 179-2541
Mfr. Part No.R4041D2121
BrandRadiall
$67.92
Each
units
- Male Straight - 50Ω Nickel - 4GHz 2W - Beryllium Copper Gold over Nickel -
RS Stock No. 170-2500
Mfr. Part No.B1004A1-ND3G-75R-0.01-1W
BrandAmphenol
$3.718
Each (In a Bag of 100)
units
BNC Male Straight - 75Ω Nickel over Copper - - - - Brass Gold over Nickel -
RS Stock No. 820-7791
Mfr. Part No.1-5221629-6
$23.02
Each
units
BNC Male Straight - 50Ω - - - 1W - Brass Gold -
RS Stock No. 143-9691
Mfr. Part No.132360
BrandAmphenol
$3.934
Each (In a Bag of 500)
units
SMA Male Straight - 50Ω Gold - 0 → 18GHz 2W - Brass Gold -
RS Stock No. 716-4984
Mfr. Part No.65_BNC-50-0-7/133_NE
$26.05
Each
units
BNC Male Straight - 50Ω White Bronze - 0 → 1GHz 1W - Brass Gold over Nickel -
RS Stock No. 112-3851
Mfr. Part No.J01006A0003
$19.91
Each
units
BNC - - - - - - - - - - - -
RS Stock No. 404-5372
Mfr. Part No.090-0510
BrandYuetsu
$20.77
Each
units
BNC Plug to BNC Socket - Straight Cable Mount 50Ω - - 0 → 600MHz 0.5W - Brass Gold -
RS Stock No. 716-5012
Mfr. Part No.6550.17.AA
$361.43
Each
units
N Male Straight - 50Ω Anodized - 0 → 5GHz 25W - Brass Gold -
RS Stock No. 716-5028
Mfr. Part No.65_SMB-50-0-1/111_NE
$81.92
Each
units
SMB Male Straight - 50Ω Gold over Nickel - 0 → 4GHz 0.5W - Beryllium Copper Gold over Nickel -
RS Stock No. 164-0780
Mfr. Part No.226176-4
$2.827
Each (In a Box of 500)
units
- - - PCB Mount - - RG174, RG316 - - - Brass - -
RS Stock No. 700-9316
Mfr. Part No.B1004A1-ND3G-75R-0.01-1W
BrandAmphenol
$3.72
Each
units
BNC Male Straight - 75Ω Nickel over Copper - - - - Brass Gold over Nickel -
RS Stock No. 773-7497
Mfr. Part No.APH-HDBNCP-T
BrandAmphenol
$34.85
Each
units
BNC Male Straight - 75Ω - - 3GHz 1W - Beryllium Copper Gold -
RS Stock No. 164-9077
Mfr. Part No.1-1337470-0
$24.013
Each (In a Box of 50)
units
BNC Male Straight Cable Mount 75Ω Gold - 0 → 1GHz - - Brass Gold -
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