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. 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. 546-4695
BrandRS PRO
HK$139.20
Each
units
BNC Female, Male Straight Through Hole 50Ω Silver - 0 → 0.5GHz 2W - Brass Gold -
RS Stock No. 144-0920
Mfr. Part No.132360
BrandAmphenol
HK$23.95
Each
units
SMA Male Straight - 50Ω Gold - 0 → 18GHz 2W - Brass Gold -
RS Stock No. 394-1083
Mfr. Part No.1-1337470-0
HK$65.09
Each
units
BNC Male Straight Cable Mount 75Ω Gold - 0 → 1GHz - - Brass Gold -
RS Stock No. 164-9077
Mfr. Part No.1-1337470-0
HK$59.95
Each (In a Box of 50)
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$114.37
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$70.45
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$529.32
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$43.84
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. 821-2567
Mfr. Part No.221629-1
HK$125.64
Each
units
BNC Male Straight - 50Ω - - - - - Brass Gold -
New
RS Stock No. 184-6533
Mfr. Part No.UM-LR-PC(40)
BrandHirose
HK$137.03
Each
units
- - - - - - - - - - - - -
RS Stock No. 716-5022
Mfr. Part No.6560.41.AA
HK$2,824.07
Each
units
7/16 Male Straight - 50Ω Anodized - 0 → 5GHz 60W - Brass Silver -
RS Stock No. 161-6049
Mfr. Part No.1-1337463-0
HK$21.561
Each (In a Bag of 50)
units
BNC Male Straight - 50Ω - - 0 → 1GHz 0.5W - - - -
RS Stock No. 886-0481
Mfr. Part No.27-9007
HK$13.818
Each (In a Pack of 10)
units
BNC Male Straight - 75Ω Nickel - 0 → 1GHz - - Brass Gold -
RS Stock No. 819-4358
Mfr. Part No.51S1RR-001N4
HK$207.81
Each
units
BNC Male Straight Panel Mount 50Ω - - 0 → 2GHz 1W - Copper Zinc Alloy Nickel/Silver/White Bronze -
RS Stock No. 693-2934
Mfr. Part No.SF8018-6005
BrandAmphenol
HK$157.62
Each
units
SMA Male Straight - 50Ω - - 0 → 18GHz 1W - Beryllium Copper Gold -
RS Stock No. 546-4689
BrandRS PRO
HK$20.09
Each
units
BNC Male Straight - 75Ω Silver - 0 → 1GHz 0.5W - Brass Gold -
RS Stock No. 112-3851
Mfr. Part No.J01006A0003
HK$92.16
Each
units
BNC - - - - - - - - - - - -
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