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. 124-9149
Mfr. Part No.J01006A1373
HK$86.50
Each
units
BNC Male Straight - 93Ω - - 0 → 600MHz 0.5W - Brass - -
RS Stock No. 125-0325
Mfr. Part No.R404759000
BrandRadiall
HK$1,618.81
Each
units
Coaxial Female Straight - 50Ω Nickel - DC-6GHz 30W Yes Beryllium Copper Gold over Nickel -
RS Stock No. 700-9313
Mfr. Part No.B1004A1-ND3G-50R-0.01-1W
BrandAmphenol
HK$30.14
Each
units
BNC Male Straight - 50Ω Nickel over Copper - - - - Brass Gold over Nickel -
RS Stock No. 712-3119
Mfr. Part No.J01026A0010
HK$720.28
Each
units
N Male Straight - 50Ω Copper Nickel Alloy, White Bronze - 0 → 18GHz 2W - Copper, Lead, Nickel Alloy Copper, Silver Alloy -
RS Stock No. 712-3113
Mfr. Part No.J01026A0011
HK$982.67
Each
units
N Male Straight - 50Ω Copper Nickel Alloy, White Bronze - 0 → 18GHz 10W - Copper, Lead, Nickel Alloy Copper, Silver Alloy -
RS Stock No. 168-0632
Mfr. Part No.1-1337463-0
HK$22.529
Each (In a Box of 1000)
units
BNC Male Straight - 50Ω Silver - 0 → 1GHz 0.5W - Brass (Center Contact) Silver (Center Contact) -
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. 179-2540
Mfr. Part No.R4041D1121
BrandRadiall
HK$508.15
Each
units
- Male Straight - 50Ω Nickel - 4GHz 2W - Beryllium Copper Gold over Nickel -
RS Stock No. 193-8669
Mfr. Part No.J01152A00
HK$119.59
Each
units
SMA Male Straight - 50Ω - - 0 → 6GHz 1W - Beryllium Copper, Copper Zinc Lead Alloy White Bronze -
RS Stock No. 716-5006
Mfr. Part No.6506.17.A
HK$1,294.67
Each
units
N Male Straight - 50Ω - - 0 → 12.4GHz 6W - Beryllium Copper Gold -
RS Stock No. 164-0780
Mfr. Part No.226176-4
HK$13.256
Each (In a Box of 500)
units
- - - PCB Mount - - RG174, RG316 - - - Brass - -
RS Stock No. 263-2766
Mfr. Part No.R404240000
BrandRadiall
HK$485.00
Each
units
N Male Straight - 50Ω - - 0 → 12.4GHz 1W - - - -
RS Stock No. 716-4987
Mfr. Part No.6500.19.A
HK$612.00
Each
units
SMA Male Straight - 50Ω White Bronze - 18GHz 0.75W - 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. 125-0470
Mfr. Part No.J01006A0001
HK$32.63
Each
units
BNC Male Straight - 75Ω - - - 0.5W - - - -
RS Stock No. 700-9316
Mfr. Part No.B1004A1-ND3G-75R-0.01-1W
BrandAmphenol
HK$36.20
Each
units
BNC Male Straight - 75Ω Nickel over Copper - - - - Brass Gold over Nickel -
RS Stock No. 170-2499
Mfr. Part No.B1004A1-ND3G-50R-0.01-1W
BrandAmphenol
HK$23.579
Each (In a Bag of 100)
units
BNC Male Straight - 50Ω Nickel over Copper - - - - Brass Gold over Nickel -
RS Stock No. 405-146
Mfr. Part No.221629-4
HK$96.69
Each
units
BNC Male Straight Cable Mount 50Ω - - - 1W - Brass Gold -
RS Stock No. 546-4128
BrandRS PRO
HK$21.70
Each
units
BNC Male Straight - 50Ω - - 1GHz 0.5W - Brass Gold -
RS Stock No. 700-9641
Mfr. Part No.TMN0111T1-3G-14
BrandAmphenol
HK$14.40
Each
units
- - Straight PCB Mount - Gold RG178 B/U, RG196 A/U - - - - - -
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