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. 546-4695
BrandRS PRO
€12.25
Each
units
BNC Female, Male Straight Through Hole 50Ω Silver - 0 → 0.5GHz 2W - Brass Gold -
RS Stock No. 546-4689
BrandRS PRO
€2.75
Each
units
BNC Male Straight - 75Ω Silver - 0 → 1GHz 0.5W - Brass Gold -
RS Stock No. 546-4134
BrandRS PRO
€2.62
Each
units
BNC Male Straight - 75Ω Nickel - 0 → 1GHz 0.5W - Brass Gold -
RS Stock No. 546-4673
BrandRS PRO
€2.78
Each
units
BNC Male Straight - 50Ω Silver - 0 → 1GHz 0.5W - Brass Gold -
RS Stock No. 546-4128
BrandRS PRO
€2.94
Each
units
BNC Male Straight - 50Ω - - 1GHz 0.5W - Brass Gold -
RS Stock No. 263-2716
Mfr. Part No.R404101000W
BrandRadiall
€3.96
Each
units
SMA Male Straight - 50Ω - - 0 → 4GHz 1W - - - -
RS Stock No. 112-3148
Mfr. Part No.J01006A1268
€5.90
Each
units
BNC Male Straight - 50Ω - - - 0.5W - - - -
RS Stock No. 456-453
Mfr. Part No.1400895-1
€1.327
Each (In a Pack of 10)
units
BNC Plug to BNC Socket - - Panel Mount - - - - - - Brass Silver -
RS Stock No. 143-9691
Mfr. Part No.132360
BrandAmphenol
€1.752
Each (In a Bag of 500)
units
SMA Male Straight - 50Ω Gold - 0 → 18GHz 2W - Brass Gold -
RS Stock No. 163-8325
Mfr. Part No.1400895-1
€0.634
Each (In a Bag of 1000)
units
BNC Plug to BNC Socket - - Panel Mount - - - - - - Brass Silver -
RS Stock No. 144-0920
Mfr. Part No.132360
BrandAmphenol
€2.51
Each
units
SMA Male Straight - 50Ω Gold - 0 → 18GHz 2W - Brass Gold -
RS Stock No. 131-202
Mfr. Part No.996073
BrandDomocare
€6.24
Each
units
BNC Male Straight - 75Ω - - - 1W - Brass Gold -
RS Stock No. 112-3665
Mfr. Part No.80.5420.017
BrandIMS
€7.18
Each
units
- - Right Angle PCB Mount - - - - - - - - -
RS Stock No. 716-5028
Mfr. Part No.65_SMB-50-0-1/111_NE
€50.07
Each
units
SMB Male Straight - 50Ω Gold over Nickel - 0 → 4GHz 0.5W - Beryllium Copper Gold over Nickel -
RS Stock No. 712-3113
Mfr. Part No.J01026A0011
€131.99
Each
units
N Male Straight - 50Ω Copper Nickel Alloy, White Bronze - 0 → 18GHz 10W - Copper, Lead, Nickel Alloy Copper, Silver Alloy -
RS Stock No. 716-5012
Mfr. Part No.6550.17.AA
€222.15
Each
units
N Male Straight - 50Ω Anodized - 0 → 5GHz 25W - Brass Gold -
RS Stock No. 494-739
Mfr. Part No.65_SMA-50-0-1/111_NE
€28.48
Each
units
SMA Male Straight - 50Ω Gold over Nickel - 0 → 18GHz 1W Yes Brass Gold over Nickel -
RS Stock No. 168-0632
Mfr. Part No.1-1337463-0
€2.697
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. 712-2936
Mfr. Part No.J01006A0021
€40.59
Each
units
BNC Female Straight - 50Ω - - 0 → 4GHz 1W - - - -
RS Stock No. 134-403
BrandITT Cannon
€1.177
Each (In a Bag of 10)
units
SMT - Straight Surface Mount - - RG316 - - - - - -
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RF Coaxial BNC terminator plug connectors with a ...
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RF Coaxial BNC terminator plug connectors with a 1W 50 Ohm resistor specification These RF coax BNC plug terminatora have a nickel plated body, gold centre contact and stock numbers 820-7791 and 821-2567 are supplied with a conductive tether with ...
50 Ohm N series RF coaxial male termination ...
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50 Ohm N series RF coaxial male termination connectors with a nickel plated brass body, gold plated centre contact and PTFE dielectric These N series male RF coax terminators have the following ratings:Stock number 263-2750: DC 4 GHz, 1WStock number ...
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