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. 716-5019
Mfr. Part No.65_N-50-0-51/113_NE
TWD417
Each
units
N Male Straight Cable Mount 50Ω White Bronze - 0 → 6GHz 1W - Brass White Bronze -
RS Stock No. 716-5012
Mfr. Part No.6550.17.AA
TWD5,075
Each
units
N Male Straight Cable Mount 50Ω Anodized - 0 → 5GHz 25W - Brass Gold -
RS Stock No. 693-2934
Mfr. Part No.SF8018-6005
BrandAmphenol
TWD711
Each
units
SMA Male Straight Cable Mount 50Ω - - 0 → 18GHz 1W - Beryllium Copper Gold -
RS Stock No. 494-795
Mfr. Part No.65_N-50-0-1/133_NE
TWD1,050
Each
units
N Male Straight Cable Mount 50Ω White Bronze - 0 → 4GHz 1W Yes Brass Gold over Nickel -
RS Stock No. 886-0403
Mfr. Part No.26-8023
TWD155
Each
units
N Male Straight Cable Mount 50Ω Nickel - 0 → 11GHz - - Brass Nickel -
RS Stock No. 712-3119
Mfr. Part No.J01026A0010
TWD3,999
Each
units
N Male Straight Cable Mount 50Ω Copper Nickel Alloy, White Bronze - 0 → 18GHz 2W - Copper, Lead, Nickel Alloy Copper, Silver Alloy -
RS Stock No. 712-3286
Mfr. Part No.J01152B0011
TWD702
Each
units
SMA Male Straight Cable Mount 50Ω Copper Nickel Gold Alloy - 0 → 18GHz 1W - Brass, Lead Alloy Copper, Gold Alloy, Nickel -
RS Stock No. 164-3118
Mfr. Part No.1-5221629-6
TWD427
Each (In a Box of 100)
units
BNC Male Straight Cable Mount 50Ω - - - 1W - Brass Gold -
RS Stock No. 263-2766
Mfr. Part No.R404240000
BrandRadiall
TWD2,210
Each
units
N Male Straight Cable Mount 50Ω - - 0 → 12.4GHz 1W - - - -
RS Stock No. 131-246
Mfr. Part No.996074
BrandSofim
TWD211
Each
units
BNC Male Straight Cable Mount 50Ω - - - 1W - Brass Gold -
RS Stock No. 494-739
Mfr. Part No.65_SMA-50-0-1/111_NE
TWD798
Each
units
SMA Male Straight Cable Mount 50Ω Gold over Nickel - 0 → 18GHz 1W Yes Brass Gold over Nickel -
RS Stock No. 820-7791
Mfr. Part No.1-5221629-6
TWD368
Each
units
BNC Male Straight Cable Mount 50Ω - - - 1W - Brass Gold -
RS Stock No. 546-4695
BrandRS Pro
TWD351
Each
units
BNC Female, Male Straight Through Hole 50Ω Silver - 0 → 0.5GHz 2W - Brass Gold -
RS Stock No. 263-2750
Mfr. Part No.R404131000W
BrandRadiall
TWD319
Each
units
- Male Straight Cable Mount 50Ω Nickel - 0 → 4GHz - - Brass Gold over Nickel -
RS Stock No. 711-2210
Mfr. Part No.3515.13.2213.101
BrandIMS
TWD680
Each
units
- Female Straight - 50Ω - - 0 → 4GHz - - Brass Gold -
RS Stock No. 738-7515
Mfr. Part No.H01000A0087
TWD295
Each
units
Cable Female, Male Straight PCB Mount - - - 0 → 4GHz - - Brass Gold -
RS Stock No. 716-4993
Mfr. Part No.65_BNC-75-0-1/133_NE
TWD882
Each
units
BNC Male Straight Cable Mount 75Ω White Bronze - 0 → 1GHz 1W Yes Brass Gold over Nickel -
RS Stock No. 712-3113
Mfr. Part No.J01026A0011
TWD4,940
Each
units
N Male Straight Cable Mount 50Ω Copper Nickel Alloy, White Bronze - 0 → 18GHz 10W - Copper, Lead, Nickel Alloy Copper, Silver Alloy -
RS Stock No. 738-7543
Mfr. Part No.H01000A0207
TWD227
Each
units
Cable Female Right Angle PCB Mount - - RG174/U, RG188 A/U, RG316/U 0 → 4GHz - - Brass Gold -
RS Stock No. 718-2512
Mfr. Part No.1-1337523-0
TWD109
Each
units
BNC Male Straight Cable Mount 50Ω - - 0 → 1GHz 0.5W - - - -