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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Part Details Brand Interface Type Gender Body Orientation Mounting Type Impedance Body Plating Cable Type Operating Frequency Average Power Rating Contact Material Contact Plating
Radiall 50Ω Straight BNC Terminator, 4GHz, 2W Average Power Rating Radiall - Male Straight - 50Ω Nickel - 4GHz 2W Beryllium Copper Gold over Nickel
Radiall 50Ω Straight BNC Terminator, 4GHz, 2W Average Power Rating Radiall - Male Straight - 50Ω Nickel - 4GHz 2W Beryllium Copper Gold over Nickel
Radiall 50Ω Straight BNC Terminator, 6GHz, 2W Average Power Rating Radiall - Female Straight - 50Ω Nickel - 6GHz 2W Beryllium Copper -
RS Pro 75Ω Straight BNC RF Terminator, 0 → 1GHz, 0.5W Average Power Rating RS Pro BNC Male Straight - 75Ω Nickel - 0 → 1GHz 0.5W Brass Gold
RS PRO 50Ω Right Angle RF Terminator, Through Hole RS Pro Cable - Right Angle Through Hole 50Ω - - - - - -
TE Connectivity 50Ω Straight BNC BNC Terminator, 0 → 1GHz, 0.5W Average Power Rating TE Connectivity BNC Male Straight - 50Ω - - 0 → 1GHz 0.5W - -
TE Connectivity BNC Plug to BNC Socket BNC Connector, Panel Mount TE Connectivity BNC Plug to BNC Socket - - Panel Mount - - - - - Brass Silver
RS Pro 50Ω Straight BNC RF Terminator, 1GHz, 0.5W Average Power Rating RS Pro BNC Male Straight - 50Ω - - 1GHz 0.5W Brass Gold
Radiall 50Ω Straight SMA RF Terminator, 0 → 4GHz, 1W Average Power Rating Radiall SMA Male Straight - 50Ω - - 0 → 4GHz 1W - -
RS 50Ω Straight BNC RF Terminator, 0 → 1GHz, 0.5W Average Power Rating RS Pro BNC Male Straight - 50Ω Silver - 0 → 1GHz 0.5W Brass Gold
Amphenol Socapex Straight PCB Mount RF Terminator, Gold over Nickel, Solder Termination, RG174/U, RG188 A/U, RG316/U Amphenol - - Straight PCB Mount - Gold over Nickel RG174/U, RG188 A/U, RG316/U - - Copper Gold over Nickel
Amphenol Straight RF Terminator, PCB Mount RG178 B/U, RG196 A/U Amphenol - - Straight PCB Mount - Gold RG178 B/U, RG196 A/U - - - -
TE Connectivity 50Ω Straight BNC RF Terminator, 0 → 1GHz, 0.5W Average Power Rating TE Connectivity BNC Male Straight - 50Ω - - 0 → 1GHz 0.5W - -
RS Pro 75Ω Straight BNC RF Terminator, 0 → 1GHz, 0.5W Average Power Rating RS Pro BNC Male Straight - 75Ω Silver - 0 → 1GHz 0.5W Brass Gold
Amphenol Socapex Right Angle RF Terminator, PCB Mount RG174/U, RG188 A/U, RG316/U Amphenol - - Right Angle PCB Mount - Gold over Nickel RG174/U, RG188 A/U, RG316/U - - Copper Gold over Nickel
RS Pro 50Ω Straight BNC RF Terminator, Through Hole, 0 → 0.5GHz, 2W Average Power Rating RS Pro BNC Female, Male Straight Through Hole 50Ω Silver - 0 → 0.5GHz 2W Brass Gold
Amphenol 50Ω Straight SMA RF Terminator, 0 → 18GHz, 2W Average Power Rating Amphenol SMA Male Straight - 50Ω Gold - 0 → 18GHz 2W Brass Gold
RS Straight SMT RF Terminator, Surface Mount RG316 RS Pro SMT - Straight Surface Mount - - RG316 - - - -
Radiall 50Ω Straight RF Terminator, 0 → 4GHz Radiall - Male Straight - 50Ω Nickel - 0 → 4GHz - Brass Gold over Nickel
TE Connectivity 50Ω Straight BNC RF Terminator, 0 → 1GHz, 0.5W Average Power Rating TE Connectivity BNC Male Straight - 50Ω - - 0 → 1GHz 0.5W - -
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