RF Surge Protectors

RF surge protectors are critical components for protecting antennas, radios, and telecommunications equipment from lightning-induced surges and transient overvoltage events. Communication systems connected by coaxial cable are especially vulnerable, as lightning strikes, near-miss events, and static charge buildup can travel along the cable path and damage connected devices. Installing an inline RF surge protector helps divert damaging energy to ground before it reaches sensitive equipment.

This category includes coaxial RF surge protectors designed to allow the desired radio frequency signals to pass with minimal loss while suppressing dangerous DC and surge energy. Common designs incorporate gas discharge tubes (GDTs) housed between coaxial connectors, providing a controlled path to ground during surge events. Options are available for low-loss applications, DC block configurations, and systems requiring protection from electromagnetic pulse (EMP) or high-altitude EMP-related electrical disturbances.

RF surge protectors are typically installed at the antenna entry point, base of the antenna mast, or where coaxial cables enter a building or enclosure. While proper grounding of antennas and towers is the first step in lightning protection, surge protection devices provide an added layer of defense by interrupting and redirecting surge energy traveling along the coaxial line. Together, grounding and RF surge protection help reduce equipment damage, fire risk, and system downtime in radio, broadcast, and wireless communication installations.

Found 229 items
Normally In Stock
Polyphaser IS-B50LN-C2 Coax Lightning Protector 125 MHz-1 GHz
Free U.S Ground shipping
$136.76
$113.97
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Polyphaser TSX-NFF Coax Lightning Protector 698 MHz-2.7 GHz
Free U.S Ground shipping
$201.68
$168.07
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Polyphaser IS-50NX-C2 Coax Lightning Protector 125 MHz-1 GHz
Free U.S Ground shipping
$132.13
$110.11
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Polyphaser IS-B50HN-C2 Coax Lightning Protector 125 MHz-1 GHz
Free U.S Ground shipping
$164.59
$137.16
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Polyphaser GT-NFF-AL Coax Lightning Protector DC-7 GHz
Free U.S Ground shipping
$89.24
$74.37
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Polyphaser IS-50NX-C0 Coax Lightning Protector 1.5 MHz-750 MHz
Free U.S Ground shipping
$108.95
$90.79
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Polyphaser DGXZ+06NFNF-A Coax Lightning Protector 800 MHz-2.5 GHz
Free U.S Ground shipping
$261.96
$218.30
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Polyphaser MDS+24-F-F Satellite System Protector 300 MHz to 2.5 GHz
Free U.S Ground shipping
$243.42
$202.85
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Polyphaser VHF50HN Coax Lightning Protector 100 MHz-512 MHz
Free U.S Ground shipping
$187.78
$156.48
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Polyphaser IS-50NX-C2-ME Coax Lightning Protector 125 MHz-1 GHz
Free U.S Ground shipping
$114.74
$95.62
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Polyphaser TSX-NFM Coax Lightning Protector 698 Mhz-2.7 GHz
Free U.S Ground shipping
$173.87
$144.89
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Polyphaser IS-B50LN-C2-MA Coax Lightning Protector 125 MHz-1 GHz
Free U.S Ground shipping
$143.72
$119.77
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Polyphaser AL-LSXM-MA Coax Lightning Protector 2 GHz-6 GHz
Free U.S Ground shipping
$89.24
$74.37
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Polyphaser GT-NFM-AL Coax Lightning Protector DC-7 GHz
Free U.S Ground shipping
$81.13
$67.61
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Polyphaser AL-LSXM Coax Lightning Protector 2 GHz-6 GHz
Free U.S Ground shipping
$97.36
$81.13
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Phoenix Contact 2803166 Surge protection device CN-UB-70DC-6-BB
Free U.S Ground shipping
$133.86
$111.55
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Polyphaser GT75-FFF Coaxial RF Surge Protector
Free U.S Ground shipping
$231.83
$193.19
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Polyphaser IS-NEMP-C2 Coax Nuclear EMP Protector 125 MHz-1 GHz
Free U.S Ground shipping
$238.78
$198.98
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Polyphaser TUSX-NFF Coax Lightning Protector 300 MHz-1.2 GHz
Free U.S Ground shipping
$243.42
$202.85
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Polyphaser AL-LSXM-ME Coax Lightning Protector 2 GHz-6 GHz
Free U.S Ground shipping
$93.88
$78.23
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Polyphaser LSXL Coax Lightning Protector 1.8 GHz-3.8 GHz & 4.2 GHz-6 GHz
Free U.S Ground shipping
$173.87
$144.89
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Polyphaser GTH-SFF-AL RF Surge Protector - 5.8 GHz, 150 Watts
Free U.S Ground shipping
$75.34
$62.78
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Polyphaser IS-B50LN-C0-ME RF Surge Protector - 1 GHz, 1500 Watts
Free U.S Ground shipping
$143.72
$119.77
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Polyphaser BGXZ-60NFNF-ALT Coax Lightning Protector 40 MHz-400 MHz
Free U.S Ground shipping
$248.05
$206.71
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Polyphaser TSX-NFM-BF Coax Lightning Protector 698 MHz-2.7 GHz
Free U.S Ground shipping
$222.55
$185.46
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Polyphaser DSXL-T-MA Coax Lightning Protector 700 MHz-2.5 GHz
Free U.S Ground shipping
$414.97
$345.81
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Phoenix Contact 2800023 Surge protection device CN-LAMBDA/4-5.9-SB
Free U.S Ground shipping
$160.84
$134.03
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Polyphaser 108-1019A RF Surge Protector - 400 MHz, 40 Watts
Free U.S Ground shipping
$271.24
$226.03
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Polyphaser BGXZ-60NFNF-CNS RF Surge Protector - 400 MHz, 100 Watts
Free U.S Ground shipping
$294.42
$245.35
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Polyphaser GT-NFSF-AL RF Surge Protector - 7 GHz, 90 Watts
Free U.S Ground shipping
$150.68
$125.57
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Polyphaser GTH-SFM-AL RF Surge Protector - 5.8 GHz, 150 Watts
Free U.S Ground shipping
$95.04
$79.20
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Polyphaser TSX-NFF-G RF Surge Protector - 2.7 GHz, 500 Watts
Free U.S Ground shipping
$250.37
$208.64
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Polyphaser TSX-NFM-G RF Surge Protector - 2.7 GHz, 500 Watts
Free U.S Ground shipping
$255.01
$212.51
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Polyphaser GTH-NF-CC RF Surge Protector - 5.8 GHz
Free U.S Ground shipping
$82.28
$68.57
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Polyphaser GTH-NFF-AL RF Surge Protector - 6 GHz, 1000 Watts
Free U.S Ground shipping
$101.99
$84.99
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Polyphaser TUSX-DFM RF Surge Protector - 1.2 GHz, 1000 Watts
Free U.S Ground shipping
$287.46
$239.55
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Polyphaser VHF50HN-B RF Surge Protector - 512 MHz, 750 Watts
Free U.S Ground shipping
$190.09
$158.41
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Polyphaser TSX-NFM-P RF Surge Protector - 2.7 GHz, 500 Watts
Free U.S Ground shipping
$197.05
$164.21
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Polyphaser TUSX-DFF RF Surge Protector - 1.2 GHz, 2500 Watts
Free U.S Ground shipping
$241.09
$200.91
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Polyphaser VHF50HN-MA RF Surge Protector - 512 MHz, 750 Watts
Free U.S Ground shipping
$210.96
$175.80
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Polyphaser VHF50HN-MAB RF Surge Protector - 512 MHz, 750 Watts
Free U.S Ground shipping
$217.91
$181.59
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Polyphaser VHF50HN-ME RF Surge Protector - 512 MHz, 750 Watts
Free U.S Ground shipping
$217.91
$181.59
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Polyphaser VUF50DHP-MA RF Surge Protector - 200 MHz, 1000 Watts
Free U.S Ground shipping
$470.62
$392.18
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Polyphaser VUF50DHP-ME RF Surge Protector - 200 MHz, 1000 Watts
Free U.S Ground shipping
$470.62
$392.18
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Polyphaser VUF50NHP-MA RF Surge Protector - 1 GHz, 750 Watts
Free U.S Ground shipping
$408.02
$340.02
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Polyphaser WSXM RF Surge Protector - 10 Ghz, 750 Watts
Free U.S Ground shipping
$377.88
$314.90
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Polyphaser AGXZ+15TFTF-A - TNC F/F Coaxial RF Surge Protector
Free U.S Ground shipping
$206.32
$171.93
Normally In Stock
Polyphaser CGXJ+15NFNF-A - Type N F/F Coaxial RF Surge Protector
Free U.S Ground shipping
$299.05
$249.21

FAQs

Q: Do coaxial RF surge protectors protect against indirect lightning strikes?
Yes. Coaxial RF surge protectors are designed to protect antenna systems and connected equipment from indirect lightning strikes, static discharge, and transient surges that travel along coaxial cables.

Q: How do coaxial RF surge protectors work?
Most coaxial RF surge protectors use a gas discharge tube that shorts the line during a surge event, diverting excess energy safely to ground while protecting downstream equipment.

Q: Do RF surge protectors affect signal performance?
RF surge protectors are designed to allow the intended frequency range to pass through with minimal insertion loss, preserving signal integrity while providing surge protection.

Q: Do coaxial RF surge protectors support multiple surge events?
Yes. Many coaxial RF surge protectors are designed for multi-strike capability, allowing them to return to normal operation after a surge and continue protecting against future events.

Q: Does suppressing DC surges help protect sensitive equipment?
Yes. Suppressing DC surge energy helps prevent damaging voltage spikes from reaching sensitive components, improving system stability and equipment longevity.

Why Buy RF Surge Protectors from RSP Supply

RSP Supply offers a wide selection of RF surge protectors designed for reliable coaxial lightning and surge protection in antenna, radio, and telecommunications systems. Our product range supports dependable signal transmission while helping safeguard critical communication equipment from electrical surge damage.