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 doesnt 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. 546-4695
BrandRS PRO
MYR70.91
Each
units
BNC Female, Male Straight Through Hole 50Ω Silver - 0 → 0.5GHz 2W - Brass Gold -
RS Stock No. 546-4128
BrandRS PRO
MYR16.99
Each
units
BNC Male Straight - 50Ω - - 1GHz 0.5W - Brass Gold -
RS Stock No. 546-4689
BrandRS PRO
MYR15.91
Each
units
BNC Male Straight - 75Ω Silver - 0 → 1GHz 0.5W - Brass Gold -
RS Stock No. 546-4673
BrandRS PRO
MYR15.70
Each
units
BNC Male Straight - 50Ω Silver - 0 → 1GHz 0.5W - Brass Gold -
RS Stock No. 546-4134
BrandRS PRO
MYR15.17
Each
units
BNC Male Straight - 75Ω Nickel - 0 → 1GHz 0.5W - Brass Gold -
RS Stock No. 494-739
Mfr. Part No.65_SMA-50-0-1/111_NE
MYR126.67
Each
units
SMA Male Straight - 50Ω Gold over Nickel - 0 → 18GHz 1W Yes Brass Gold over Nickel -
RS Stock No. 263-2716
Mfr. Part No.R404101000W
BrandRadiall
MYR35.53
Each
units
SMA Male Straight - 50Ω - - 0 → 4GHz 1W - - - -
RS Stock No. 693-2934
Mfr. Part No.SF8018-6005
BrandAmphenol
MYR98.36
Each
units
SMA Male Straight - 50Ω - - 0 → 18GHz 1W - Beryllium Copper Gold -
RS Stock No. 456-453
Mfr. Part No.1400895-1
MYR5.07
Each (In a Pack of 10)
units
BNC Plug to BNC Socket - - Panel Mount - - - - - - Brass Silver -
RS Stock No. 163-8325
Mfr. Part No.1400895-1
MYR3.17
Each (In a Bag of 1000)
units
BNC Plug to BNC Socket - - Panel Mount - - - - - - Brass Silver -
RS Stock No. 168-0632
Mfr. Part No.1-1337463-0
MYR13.46
Each (In a Box of 1000)
units
BNC Male Straight - 50Ω Silver - 0 → 1GHz 0.5W - Brass (Center Contact) Silver (Center Contact) -
RS Stock No. 716-5056
Mfr. Part No.65_QLA-01-0-1/122_NE
MYR197.75
Each
units
QLA Male Straight - - Nickel - 0 → 1.4GHz 0.5W - Brass Gold over Nickel -
RS Stock No. 296-7977
Mfr. Part No.R404121000
BrandRadiall
MYR78.36
Each
units
TNC Male Straight - 50Ω - - 0 → 4GHz 1W - - - -
RS Stock No. 112-3148
Mfr. Part No.J01006A1268
MYR30.60
Each
units
BNC Male Straight - 50Ω - - - 0.5W - - - -
RS Stock No. 394-1077
Mfr. Part No.1-1337463-0
MYR23.19
Each
units
BNC Male Straight - 50Ω - - 0 → 1GHz 0.5W - - - -
RS Stock No. 161-6049
Mfr. Part No.1-1337463-0
MYR19.47
Each (In a Bag of 50)
units
BNC Male Straight - 50Ω - - 0 → 1GHz 0.5W - - - -
RS Stock No. 846-6691
Mfr. Part No.1-1337463-0
MYR23.19
Each
units
BNC Male Straight - 50Ω Silver - 0 → 1GHz 0.5W - Brass (Center Contact) Silver (Center Contact) -
RS Stock No. 773-7497
Mfr. Part No.APH-HDBNCP-T
BrandAmphenol
MYR105.11
Each
units
BNC Male Straight - 75Ω - - 3GHz 1W - Beryllium Copper Gold -
RS Stock No. 405-146
Mfr. Part No.221629-4
MYR78.98
Each
units
BNC Male Straight Cable Mount 50Ω - - - 1W - Brass Gold -
RS Stock No. 184-6533
Mfr. Part No.UM-LR-PC(40)
BrandHirose
MYR76.50
Each
units
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