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
TWD417.00
Each
units
N Male Straight - 50Ω White Bronze - 0 → 6GHz 1W - Brass White Bronze -
RS Stock No. 716-5012
Mfr. Part No.6550.17.AA
TWD5,075.00
Each
units
N Male Straight - 50Ω Anodized - 0 → 5GHz 25W - Brass Gold -
RS Stock No. 693-2934
Mfr. Part No.SF8018-6005
BrandAmphenol
TWD624.00
Each
units
SMA Male Straight - 50Ω - - 0 → 18GHz 1W - Beryllium Copper Gold -
RS Stock No. 494-795
Mfr. Part No.65_N-50-0-1/133_NE
TWD1,050.00
Each
units
N Male Straight - 50Ω White Bronze - 0 → 4GHz 1W Yes Brass Gold over Nickel -
RS Stock No. 886-0403
Mfr. Part No.26-8023
TWD155.00
Each
units
N Male Straight - 50Ω Nickel - 0 → 11GHz - - Brass Nickel -
RS Stock No. 712-3119
Mfr. Part No.J01026A0010
TWD3,999.00
Each
units
N Male Straight - 50Ω Copper Nickel Alloy, White Bronze - 0 → 18GHz 2W - Copper, Lead, Nickel Alloy Copper, Silver Alloy -
RS Stock No. 712-3286
Mfr. Part No.J01152B0011
TWD702.00
Each
units
SMA Male Straight - 50Ω Copper Nickel Gold Alloy - 0 → 18GHz 1W - Brass, Lead Alloy Copper, Gold Alloy, Nickel -
RS Stock No. 263-2750
Mfr. Part No.R404131000W
BrandRadiall
TWD319.00
Each
units
- Male Straight - 50Ω Nickel - 0 → 4GHz - - Brass Gold over Nickel -
RS Stock No. 131-246
Mfr. Part No.996074
BrandDomocare
TWD211.00
Each
units
BNC Male Straight - 50Ω - - - 1W - Brass Gold -
RS Stock No. 820-7791
Mfr. Part No.1-5221629-6
TWD368.00
Each
units
BNC Male Straight - 50Ω - - - 1W - Brass Gold -
RS Stock No. 263-2766
Mfr. Part No.R404240000
BrandRadiall
TWD2,210.00
Each
units
N Male Straight - 50Ω - - 0 → 12.4GHz 1W - - - -
RS Stock No. 164-3118
Mfr. Part No.1-5221629-6
TWD336.30
Each (In a Box of 100)
units
BNC Male Straight - 50Ω - - - 1W - Brass Gold -
RS Stock No. 494-739
Mfr. Part No.65_SMA-50-0-1/111_NE
TWD798.00
Each
units
SMA Male Straight - 50Ω Gold over Nickel - 0 → 18GHz 1W Yes Brass Gold over Nickel -
RS Stock No. 546-4695
BrandRS PRO
TWD351.00
Each
units
BNC Female, Male Straight Through Hole 50Ω Silver - 0 → 0.5GHz 2W - Brass Gold -
RS Stock No. 112-3665
Mfr. Part No.80.5420.017
BrandIMS
TWD235.00
Each
units
- - Right Angle PCB Mount - - - - - - - - -
RS Stock No. 819-4358
Mfr. Part No.51S1RR-001N4
TWD699.00
Each
units
BNC Male Straight Panel Mount 50Ω - - 0 → 2GHz 1W - Copper Zinc Alloy Nickel/Silver/White Bronze -
RS Stock No. 112-3671
Mfr. Part No.80.5420.027
BrandIMS
TWD236.00
Each
units
- - Right Angle PCB Mount - - - - - - - - -
RS Stock No. 700-9647
Mfr. Part No.TMN0111B2-3G-05
BrandAmphenol
TWD101.00
Each
units
- - Straight PCB Mount - Gold over Nickel RG174/U, RG188 A/U, RG316/U - - - Copper Gold over Nickel Solder
RS Stock No. 716-5022
Mfr. Part No.6560.41.AA
TWD10,447.00
Each
units
7/16 Male Straight - 50Ω Anodized - 0 → 5GHz 60W - Brass Silver -
RS Stock No. 546-4134
BrandRS PRO
TWD69.00
Each
units
BNC Male Straight - 75Ω Nickel - 0 → 1GHz 0.5W - Brass Gold -