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. 773-7490
Mfr. Part No.APH-HDBNCJ-T
BrandAmphenol
HK$167.95
Each
units
BNC Female Straight - 75Ω - - 3GHz 1W - Beryllium Copper Gold -
RS Stock No. 296-7977
Mfr. Part No.R404121000
BrandRadiall
HK$132.30
Each
units
TNC Male Straight - 50Ω - - 0 → 4GHz 1W - - - -
RS Stock No. 546-4134
BrandRS PRO
HK$19.70
Each
units
BNC Male Straight - 75Ω Nickel - 0 → 1GHz 0.5W - Brass Gold -
RS Stock No. 494-795
Mfr. Part No.65_N-50-0-1/133_NE
HK$373.99
Each
units
N Male Straight - 50Ω White Bronze - 0 → 4GHz 1W Yes Brass Gold over Nickel -
RS Stock No. 712-2936
Mfr. Part No.J01006A0021
HK$285.00
Each
units
BNC Female Straight - 50Ω - - 0 → 4GHz 1W - - - -
RS Stock No. 712-3282
Mfr. Part No.J01152A0011
HK$135.25
Each
units
SMA Male Straight - 50Ω Copper Nickel Gold Alloy - 0 → 6GHz 1W - Brass Copper, Gold Alloy, Nickel -
RS Stock No. 738-7515
Mfr. Part No.H01000A0087
HK$52.04
Each
units
Cable Female, Male Straight PCB Mount - - - 0 → 4GHz - - Brass Gold -
RS Stock No. 131-246
Mfr. Part No.996074
BrandDomocare
HK$63.52
Each
units
BNC Male Straight - 50Ω - - - 1W - Brass Gold -
RS Stock No. 820-7791
Mfr. Part No.1-5221629-6
HK$92.97
Each
units
BNC Male Straight - 50Ω - - - 1W - Brass Gold -
RS Stock No. 164-9309
Mfr. Part No.221629-4
HK$103.414
Each (In a Box of 100)
units
BNC Male Straight Cable Mount 50Ω - - - 1W - Brass Gold -
RS Stock No. 716-5040
Mfr. Part No.6550.41.AB
HK$1,810.74
Each
units
7/16 Male Straight - 50Ω Anodized - 0 → 2GHz 25W - Brass Silver -
RS Stock No. 886-0481
Mfr. Part No.27-9007
HK$13.818
Each (In a Pack of 10)
units
BNC Male Straight - 75Ω Nickel - 0 → 1GHz - - Brass Gold -
RS Stock No. 394-1077
Mfr. Part No.1-1337463-0
HK$43.36
Each
units
BNC Male Straight - 50Ω - - 0 → 1GHz 0.5W - - - -
RS Stock No. 738-7521
Mfr. Part No.H01000A0131
HK$41.00
Each
units
Cable Female, Male Straight PCB Mount - - RG405/U, UT85 0 → 4GHz - - Brass Gold -
RS Stock No. 716-5034
Mfr. Part No.65_SMB-50-0-31/111_NE
HK$540.20
Each
units
SMB Female Straight - 50Ω Gold over Nickel - 0 → 4GHz 0.5W - Brass Gold -
RS Stock No. 716-5028
Mfr. Part No.65_SMB-50-0-1/111_NE
HK$471.15
Each
units
SMB Male Straight - 50Ω Gold over Nickel - 0 → 4GHz 0.5W - Beryllium Copper Gold over Nickel -
RS Stock No. 712-3286
Mfr. Part No.J01152B0011
HK$175.43
Each
units
SMA Male Straight - 50Ω Copper Nickel Gold Alloy - 0 → 18GHz 1W - Brass, Lead Alloy Copper, Gold Alloy, Nickel -
RS Stock No. 134-403
BrandITT Cannon
HK$9.379
Each (In a Bag of 10)
units
SMT - Straight Surface Mount - - RG316 - - - - - -
RS Stock No. 821-2567
Mfr. Part No.221629-1
HK$125.64
Each
units
BNC Male Straight - 50Ω - - - - - Brass Gold -
RS Stock No. 125-0324
Mfr. Part No.R404758000
BrandRadiall
HK$1,481.13
Each
units
Coaxial Male Straight - 50Ω Nickel - DC-6GHz 30W Yes Beryllium Copper Gold over Nickel -
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