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 Coaxial Connector Type
RS Stock No. 494-739
Mfr. Part No.65_SMA-50-0-1/111_NE
MYR100.33
Each
units
SMA Male Straight - 50Ω Gold over Nickel - 0 → 18GHz 1W Yes Brass Gold over Nickel - -
RS Stock No. 716-5056
Mfr. Part No.65_QLA-01-0-1/122_NE
MYR189.52
Each
units
QLA Male Straight - - Nickel - 0 → 1.4GHz 0.5W - Brass Gold over Nickel - -
RS Stock No. 716-4987
Mfr. Part No.6500.19.A
MYR570.31
Each
units
SMA Male Straight - 50Ω White Bronze - 18GHz 0.75W - Beryllium Copper Gold - -
RS Stock No. 716-5040
Mfr. Part No.6550.41.AB
MYR1,109.29
Each
units
7/16 Male Straight - 50Ω Anodized - 0 → 2GHz 25W - Brass Silver - -
RS Stock No. 494-795
Mfr. Part No.65_N-50-0-1/133_NE
MYR210.84
Each
units
N Male Straight - 50Ω White Bronze - 0 → 4GHz 1W Yes Brass Gold over Nickel - -
RS Stock No. 716-5034
Mfr. Part No.65_SMB-50-0-31/111_NE
MYR255.33
Each
units
SMB Female Straight - 50Ω Gold over Nickel - 0 → 4GHz 0.5W - Brass Gold - -
RS Stock No. 716-5003
Mfr. Part No.65_BNC-75-0-7/133_NE
MYR99.75
Each
units
BNC Male Straight - 75Ω White Bronze - 0 → 1GHz 0.4W Yes Brass Gold over Nickel - -
RS Stock No. 716-4984
Mfr. Part No.65_BNC-50-0-7/133_NE
MYR92.97
Each
units
BNC Male Straight - 50Ω White Bronze - 0 → 1GHz 1W - Brass Gold over Nickel - -
RS Stock No. 716-5028
Mfr. Part No.65_SMB-50-0-1/111_NE
MYR215.86
Each
units
SMB Male Straight - 50Ω Gold over Nickel - 0 → 4GHz 0.5W - Beryllium Copper Gold over Nickel - -
RS Stock No. 716-5019
Mfr. Part No.65_N-50-0-51/113_NE
MYR76.95
Each
units
N Male Straight - 50Ω White Bronze - 0 → 6GHz 1W - Brass White Bronze - -
RS Stock No. 716-4996
Mfr. Part No.65_N-75-0-11/133_NE
MYR843.55
Each
units
N Male Straight - 75Ω White Bronze - 0 → 1.3GHz 1W - Brass Gold over Nickel - -
RS Stock No. 716-5012
Mfr. Part No.6550.17.AA
MYR989.00
Each
units
N Male Straight - 50Ω Anodized - 0 → 5GHz 25W - Brass Gold - -
RS Stock No. 716-5006
Mfr. Part No.6506.17.A
MYR863.67
Each
units
N Male Straight - 50Ω - - 0 → 12.4GHz 6W - Beryllium Copper Gold - -
RS Stock No. 716-5022
Mfr. Part No.6560.41.AA
MYR2,366.96
Each
units
7/16 Male Straight - 50Ω Anodized - 0 → 5GHz 60W - Brass Silver - -