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. 713-0899
Mfr. Part No.226176-4
$4.296
Each (In a Pack of 5)
units
- - - PCB Mount - - - - - - Brass - -
RS Stock No. 125-0322
Mfr. Part No.R4041D1000
BrandRadiall
$79.08
Each
units
Coaxial Male Straight - 50Ω Nickel - DC-4GHz 2W Yes Beryllium Copper Gold over Nickel -
RS Stock No. 886-0403
Mfr. Part No.26-8023
$10.28
Each
units
N Male Straight - 50Ω Nickel - 0 → 11GHz - - Brass Nickel -
RS Stock No. 296-7977
Mfr. Part No.R404121000
BrandRadiall
$26.13
Each
units
TNC Male Straight - 50Ω - - 0 → 4GHz 1W - - - -
RS Stock No. 819-4358
Mfr. Part No.51S1RR-001N4
$35.01
Each
units
BNC Male Straight Panel Mount 50Ω - - 0 → 2GHz 1W - Copper Zinc Alloy Nickel/Silver/White Bronze -
RS Stock No. 124-9149
Mfr. Part No.J01006A1373
$21.19
Each
units
BNC Male Straight - 93Ω - - 0 → 600MHz 0.5W - Brass - -
RS Stock No. 738-7543
Mfr. Part No.H01000A0207
$11.85
Each
units
Cable Female Right Angle PCB Mount - - RG174/U, RG188 A/U, RG316/U 0 → 4GHz - - Brass Gold -
RS Stock No. 716-4987
Mfr. Part No.6500.19.A
$196.46
Each
units
SMA Male Straight - 50Ω White Bronze - 18GHz 0.75W - Beryllium Copper Gold -
RS Stock No. 184-6234
Mfr. Part No.UM-LR-PC(40)
BrandHirose
$21.974
Each (In a Bag of 100)
units
- - - - - - - - - - - - -
RS Stock No. 263-2750
Mfr. Part No.R404131000W
BrandRadiall
$21.13
Each
units
- Male Straight - 50Ω Nickel - 0 → 4GHz - - Brass Gold over Nickel -
RS Stock No. 716-5003
Mfr. Part No.65_BNC-75-0-7/133_NE
$44.83
Each
units
BNC Male Straight - 75Ω White Bronze - 0 → 1GHz 0.4W Yes Brass Gold over Nickel -
RS Stock No. 494-795
Mfr. Part No.65_N-50-0-1/133_NE
$87.48
Each
units
N Male Straight - 50Ω White Bronze - 0 → 4GHz 1W Yes Brass Gold over Nickel -
RS Stock No. 164-0780
Mfr. Part No.226176-4
$2.919
Each (In a Box of 500)
units
- - - PCB Mount - - RG174, RG316 - - - Brass - -
RS Stock No. 700-9650
Mfr. Part No.TMN0112U1-3G-05
BrandAmphenol
$8.27
Each
units
- - Right Angle PCB Mount - Gold over Nickel RG174/U, RG188 A/U, RG316/U - - - Copper Gold over Nickel -
RS Stock No. 712-3286
Mfr. Part No.J01152B0011
$31.31
Each
units
SMA Male Straight - 50Ω Copper Nickel Gold Alloy - 0 → 18GHz 1W - Brass, Lead Alloy Copper, Gold Alloy, Nickel -
RS Stock No. 716-5034
Mfr. Part No.65_SMB-50-0-31/111_NE
$107.13
Each
units
SMB Female Straight - 50Ω Gold over Nickel - 0 → 4GHz 0.5W - Brass Gold -
RS Stock No. 179-2541
Mfr. Part No.R4041D2121
BrandRadiall
$95.30
Each
units
- Male Straight - 50Ω Nickel - 4GHz 2W - Beryllium Copper Gold over Nickel -
RS Stock No. 263-2766
Mfr. Part No.R404240000
BrandRadiall
$131.49
Each
units
N Male Straight - 50Ω - - 0 → 12.4GHz 1W - - - -
RS Stock No. 131-202
Mfr. Part No.996073
BrandDomocare
$11.42
Each
units
BNC Male Straight - 75Ω - - - 1W - Brass Gold -
RS Stock No. 716-5006
Mfr. Part No.6506.17.A
$297.50
Each
units
N Male Straight - 50Ω - - 0 → 12.4GHz 6W - Beryllium Copper Gold -
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