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 Coaxial Connector Type
RS Stock No. 144-0920
Mfr. Part No.132360
BrandAmphenol
HK$26.17
Each
units
SMA Male Straight - 50Ω Gold - 0 → 18GHz 2W - Brass Gold - -
RS Stock No. 546-4695
BrandRS PRO
HK$155.38
Each
units
BNC Female, Male Straight Through Hole 50Ω Silver - 0 → 0.5GHz 2W - Brass Gold - -
RS Stock No. 143-9691
Mfr. Part No.132360
BrandAmphenol
HK$17.52
Each (In a Bag of 500)
units
SMA Male Straight - 50Ω Gold - 0 → 18GHz 2W - Brass Gold - -
RS Stock No. 164-9077
Mfr. Part No.1-1337470-0
HK$127.07
Each (In a Box of 50)
units
BNC Male Straight Cable Mount 75Ω Gold - 0 → 1GHz - - Brass Gold - -
RS Stock No. 394-1083
Mfr. Part No.1-1337470-0
HK$157.02
Each
units
BNC Male Straight Cable Mount 75Ω Gold - 0 → 1GHz - - Brass Gold - -
RS Stock No. 716-5019
Mfr. Part No.65_N-50-0-51/113_NE
HK$161.13
Each
units
N Male Straight - 50Ω White Bronze - 0 → 6GHz 1W - Brass White Bronze - -
RS Stock No. 296-7955
Mfr. Part No.R404111000
BrandRadiall
HK$130.09
Each
units
BNC Male Straight - 50Ω Nickel - 4GHz 1W - Brass Gold over Nickel - -
RS Stock No. 716-4996
Mfr. Part No.65_N-75-0-11/133_NE
HK$1,766.34
Each
units
N Male Straight - 75Ω White Bronze - 0 → 1.3GHz 1W - Brass Gold over Nickel - -
RS Stock No. 112-3148
Mfr. Part No.J01006A1268
HK$52.18
Each
units
BNC Male Straight - 50Ω - - - 0.5W - - - - -
RS Stock No. 546-4673
BrandRS PRO
HK$41.46
Each
units
BNC Male Straight - 50Ω Silver - 0 → 1GHz 0.5W - Brass Gold - -
RS Stock No. 785-7761
Mfr. Part No.R404012000
BrandRadiall
HK$89.70
Each
units
BNC Male Straight Through Hole 75Ω - - 1GHz 1W - Brass Gold - -
RS Stock No. 716-4987
Mfr. Part No.6500.19.A
HK$978.12
Each
units
SMA Male Straight - 50Ω White Bronze - 18GHz 0.75W - Beryllium Copper Gold - -
RS Stock No. 738-7543
Mfr. Part No.H01000A0207
HK$59.03
Each
units
Cable Female Right Angle PCB Mount - - RG174/U, RG188 A/U, RG316/U 0 → 4GHz - - Brass Gold - -
RS Stock No. 179-2542
Mfr. Part No.R4041D5000
BrandRadiall
HK$410.72
Each
units
- Female Straight - 50Ω Nickel - 6GHz 2W - Beryllium Copper - - -
RS Stock No. 112-3154
Mfr. Part No.J01006A1269
HK$48.05
Each
units
BNC Male Straight - 75Ω - - - 0.5W - - - - -
RS Stock No. 164-3118
Mfr. Part No.1-5221629-6
HK$94.38
Each (In a Box of 100)
units
BNC Male Straight - 50Ω - - - 1W - Brass Gold - -
RS Stock No. 716-4984
Mfr. Part No.65_BNC-50-0-7/133_NE
HK$187.40
Each
units
BNC Male Straight - 50Ω White Bronze - 0 → 1GHz 1W - Brass Gold over Nickel - -
RS Stock No. 125-0470
Mfr. Part No.J01006A0001
HK$35.63
Each
units
BNC Male Straight - 75Ω - - - 0.5W - - - - -
RS Stock No. 131-246
Mfr. Part No.996074
BrandDomocare
HK$42.60
Each
units
BNC Male Straight - 50Ω - - - 1W - Brass Gold - -
RS Stock No. 112-3665
Mfr. Part No.80.5420.017
BrandIMS
HK$63.45
Each
units
- - Right Angle PCB Mount - - - - - - - - - -