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. 700-9316
Mfr. Part No.B1004A1-ND3G-75R-0.01-1W
BrandAmphenol
SGD6.39
Each
units
BNC Male Straight - 75Ω Nickel over Copper - - - - Brass Gold over Nickel -
RS Stock No. 170-2500
Mfr. Part No.B1004A1-ND3G-75R-0.01-1W
BrandAmphenol
SGD4.84
Each (In a Bag of 100)
units
BNC Male Straight - 75Ω Nickel over Copper - - - - Brass Gold over Nickel -
RS Stock No. 693-2934
Mfr. Part No.SF8018-6005
BrandAmphenol
SGD27.20
Each
units
SMA Male Straight - 50Ω - - 0 → 18GHz 1W - Beryllium Copper Gold -
RS Stock No. 773-7490
Mfr. Part No.APH-HDBNCJ-T
BrandAmphenol
SGD41.47
Each
units
BNC Female Straight - 75Ω - - 3GHz 1W - Beryllium Copper Gold -
RS Stock No. 170-2499
Mfr. Part No.B1004A1-ND3G-50R-0.01-1W
BrandAmphenol
SGD4.415
Each (In a Bag of 100)
units
BNC Male Straight - 50Ω Nickel over Copper - - - - Brass Gold over Nickel -
RS Stock No. 700-9313
Mfr. Part No.B1004A1-ND3G-50R-0.01-1W
BrandAmphenol
SGD9.94
Each
units
BNC Male Straight - 50Ω Nickel over Copper - - - - Brass Gold over Nickel -
RS Stock No. 700-9650
Mfr. Part No.TMN0112U1-3G-05
BrandAmphenol
SGD3.69
Each
units
- - Right Angle PCB Mount - Gold over Nickel RG174/U, RG188 A/U, RG316/U - - - Copper Gold over Nickel -
RS Stock No. 700-9641
Mfr. Part No.TMN0111T1-3G-14
BrandAmphenol
SGD1.81
Each
units
- - Straight PCB Mount - Gold RG178 B/U, RG196 A/U - - - - - -
RS Stock No. 143-9691
Mfr. Part No.132360
BrandAmphenol
SGD3.06
Each (In a Bag of 500)
units
SMA Male Straight - 50Ω Gold - 0 → 18GHz 2W - Brass Gold -
RS Stock No. 700-9647
Mfr. Part No.TMN0111B2-3G-05
BrandAmphenol
SGD5.50
Each
units
- - Straight PCB Mount - Gold over Nickel RG174/U, RG188 A/U, RG316/U - - - Copper Gold over Nickel Solder
RS Stock No. 773-7497
Mfr. Part No.APH-HDBNCP-T
BrandAmphenol
SGD35.64
Each
units
BNC Male Straight - 75Ω - - 3GHz 1W - Beryllium Copper Gold -
RS Stock No. 144-0920
Mfr. Part No.132360
BrandAmphenol
SGD4.49
Each
units
SMA Male Straight - 50Ω Gold - 0 → 18GHz 2W - Brass Gold -
RS Stock No. 2509270983
Mfr. Part No.132361
BrandAmphenol
SGD8.50
Each
units
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