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
RS Stock No. 296-7955
Mfr. Part No.R404111000
BrandRadiall
SGD25.70
Each
units
BNC Male Straight - 50Ω Nickel - 4GHz 1W - Brass Gold over Nickel
RS Stock No. 819-4358
Mfr. Part No.51S1RR-001N4
SGD44.43
Each
units
BNC Male Straight Panel Mount 50Ω - - 0 → 2GHz 1W - Copper Zinc Alloy Nickel/Silver/White Bronze
RS Stock No. 716-5003
Mfr. Part No.65_BNC-75-0-7/133_NE
SGD37.94
Each
units
BNC Male Straight - 75Ω White Bronze - 0 → 1GHz 0.4W Yes Brass Gold over Nickel
RS Stock No. 168-0617
Mfr. Part No.1-1337523-0
SGD9.39
1 Bag of 1
Bag(s)
BNC Male Straight - 50Ω - - 0 → 1GHz 0.5W - - -
RS Stock No. 164-9309
Mfr. Part No.221629-4
SGD17.657
Each (In a Box of 100)
units
BNC Male Straight Cable Mount 50Ω - - - 1W - Brass Gold
RS Stock No. 693-2934
Mfr. Part No.SF8018-6005
SGD28.62
Each
units
SMA Male Straight - 50Ω - - 0 → 18GHz 1W - Beryllium Copper Gold
RS Stock No. 716-5022
Mfr. Part No.6560.41.AA
SGD721.73
Each
units
7/16 Male Straight - 50Ω Anodized - 0 → 5GHz 60W - Brass Silver
RS Stock No. 131-246
Mfr. Part No.996074
BrandDomocare
SGD7.98
Each
units
BNC Male Straight - 50Ω - - - 1W - Brass Gold
RS Stock No. 296-7977
Mfr. Part No.R404121000
BrandRadiall
SGD29.99
Each
units
TNC Male Straight - 50Ω - - 0 → 4GHz 1W - - -
RS Stock No. 405-146
Mfr. Part No.221629-4
SGD17.67
Each
units
BNC Male Straight Cable Mount 50Ω - - - 1W - Brass Gold
RS Stock No. 170-2499
Mfr. Part No.B1004A1-ND3G-50R-0.01-1W
SGD9.534
Each (In a Bag of 100)
units
BNC Male Straight - 50Ω Nickel over Copper - - - - Brass Gold over Nickel
RS Stock No. 718-2512
Mfr. Part No.1-1337523-0
SGD9.39
Each
units
BNC Male Straight - 50Ω - - 0 → 1GHz 0.5W - - -
RS Stock No. 546-4134
BrandRS PRO
SGD4.86
Each
units
BNC Male Straight - 75Ω Nickel - 0 → 1GHz 0.5W - Brass Gold
RS Stock No. 785-7761
Mfr. Part No.R404012000
BrandRadiall
SGD23.58
Each
units
BNC Male Straight Through Hole 75Ω - - 1GHz 1W - Brass Gold
RS Stock No. 277-9449
Mfr. Part No.3840-50
BrandFluke
SGD19.19
Each
units
BNC Male Straight - 50Ω - - 500MHz 0.5W - Brass Gold
RS Stock No. 886-0403
Mfr. Part No.26-8023
SGD9.65
Each
units
N Male Straight - 50Ω Nickel - 0 → 11GHz - - Brass Nickel
RS Stock No. 716-4987
Mfr. Part No.6500.19.A
SGD177.31
Each
units
SMA Male Straight - 50Ω White Bronze - 18GHz 0.75W - Beryllium Copper Gold
RS Stock No. 184-6533
Mfr. Part No.UM-LR-PC(40)
BrandHirose
SGD23.08
Each
units
- - - - - - - - - - - -
RS Stock No. 263-2716
Mfr. Part No.R404101000W
BrandRadiall
SGD7.32
Each
units
SMA Male Straight - 50Ω - - 0 → 4GHz 1W - - -
RS Stock No. 125-0324
Mfr. Part No.R404758000
BrandRadiall
SGD254.93
Each
units
Coaxial Male Straight - 50Ω Nickel - DC-6GHz 30W Yes Beryllium Copper Gold over Nickel