U.S. Ground
Parcel Shipments
See Shipping Policy

RF Surge Protectors

Lightening and power surges are the biggest threat to communication equipment like radio and TV antennas. Without the proper protection, a single lightening strike can travel through the coaxial cable, damage connected devices and possibly cause a fire or electric shock to surrounding people. Static charge build up and near miss lightening strikes can also create power surges and damage equipment. Installing an in-line surge protector in the path from the antenna to the signal booster disconnects the circuit in the event of a power surge.

RF surge protectors (lightning surge arrestors, lightning surge protectors or surge suppressors) are designed to protect radio and antenna installations from a power surge caused by lightning while still allowing the desired frequency to pass through the cable. Some RF surge protectors also provide protection from electromagnetic pulse or high-altitude electromagnetic pulse related electrical changes.

Found 229 items
Filters
Found 229 items
Manufacturer
Phoenix Contact (19)
Polyphaser (210)
Nominal Current
1.5 Amp (1)
10 Amp (2)
185 Mamp (1)
2 Amp (1)
3.5 Amp (1)
400 Mamp (1)
5 Amp (10)
Frequency (RF Protection)
0 Hz - 3 Ghz (2)
0 Hz - 6 Ghz (2)
0.8 Ghz - 2.25 Ghz (3)
1 Ghz (7)
1.5 Mhz-750 Mhz (1)
1.8 Ghz-3.8 Ghz (1)
100 Mhz (8)
100 Mhz-512 Mhz (1)
125 Mhz-1 Ghz (6)
2 Ghz (7)
Frequency Max (RF Protection)
1 Ghz (24)
1.2 Ghz (11)
1.6 Ghz (3)
10 Ghz (1)
163 Mhz (3)
2.16 Ghz (1)
2.25 Ghz (4)
2.3 Ghz (1)
2.4 Ghz (2)
2.5 Ghz (31)
Connector Surge Side (RF Protection)
7/16 DIN Female (1)
7/16 DIN Male (4)
F Female (1)
N Female (38)
N Male (10)
RTNC Female (1)
TNC Female (3)
TNC Male (1)
Connector Protected Side (RF Protection)
7/16 DIN Female (5)
F Female (1)
N Female (35)
N Male (10)
RTNC Male (1)
SMA Female (3)
TNC Female (4)
Direction Connection (RF Protection)
Bi-Directional NF-NF (4)
Bi-Directional NF-NM (3)
One Direction (19)
DC Handling (RF Protection)
DC Block (19)
DC Pass (6)
DC Pass Voltage (RF Protection)
15 VDC (1)
24 VDC (1)
6 VDC (1)
60 VDC (1)
80 VDC (2)
Arrester Class according to IEC
B2 (1)
C1 (4)
C2 (19)
C3 (19)
D1 (19)
Direction of Action
Line-Shield-Earth Ground (19)
Impulse Discharge Current
≤ 20 Ka (1)
1 Ka (2)
2.5 Ka (2)
20 Ka (1)
Max Insertion Loss (RF Protection)
≤0.1 Db (23)
≤0.2 Db (1)
≤0.25 Db (1)
Max Surge Rate (RF Protection)
10Ka (3)
18Ka (3)
20Ka (6)
3Ka (1)
40Ka (5)
50Ka (7)
Max Watts (RF Protection)
1 Watts (1)
1.5 Kilowatts (1)
10 Watts (12)
100 Watts (8)
1000 Watts (12)
150 Watts (3)
1500 Watts (7)
2.5 Kilowatts (1)
200 Watts (5)
2000 Watts (6)
Maximum Continous Voltage
180 V DC (3)
20 V DC (1)
24 V DC (1)
280 V DC (4)
5 V DC (1)
70 V DC (2)
Mounting (RF Protection)
Connection-Specific Intermediate Plugging (18)
Screw Mounting (1)
Nominal Discharge Current
10 Kamp (1)
2.5 Kamp (2)
20 Kamp (6)
5 Kamp (5)
50 Kamp (4)
6 Kamp (1)
Technology (RF Protection)
Coil Inductor (10)
Gas Tube (Avg 10 Yr. Life) (11)
Hybrid Inductor (5)
VSWR (RF Protection)
≤1.1:1 (20)
≤1.2:1 (4)
≤1.4:1 (1)
Weatherization (RF Protection)
Non-Weatherized (8)
Weatherized (17)
Width
144.9 mm (1)
24 mm (2)
25 mm (4)
25.4 mm (4)
26.1 mm (2)
28 mm (1)
31 mm (2)
32 mm (2)
84.8 mm (1)
Normally In Stock
Polyphaser SP-NFM-AL-6 - Type N F/M Bulkhead Coaxial RF Sampler Port
Free U.S Ground shipping
$498.44
$415.37
Normally In Stock
Polyphaser IX-5T/W - Outdoor Twisted Pair Lightning Surge Protector
Free U.S Ground shipping
$98.52
$82.10
Normally In Stock
Polyphaser IX-2H1DC56-IG/W - Outdoor Twisted Pair Lightning Surge Protector
Free U.S Ground shipping
$412.66
$343.88
Normally In Stock
Polyphaser TGXZ+06NFSF-MC - Coaxial RF Surge Protector
Free U.S Ground shipping
$301.38
$251.15
Normally In Stock
Polyphaser GPS+06NFSF - Coaxial RF Surge Protector
Free U.S Ground shipping
$187.78
$156.48
Normally In Stock
Polyphaser GPS+06NFM - Coaxial RF Surge Protector
Free U.S Ground shipping
$178.50
$148.75
Normally In Stock
Polyphaser GPS+06NFF - Coaxial RF Surge Protector
Free U.S Ground shipping
$178.50
$148.75
Normally In Stock
Polyphaser DGXZ+36NMNF-A - Coaxial RF Surge Protector
Free U.S Ground shipping
$220.24
$183.53
Normally In Stock
Polyphaser DGXZ+36NFNF-A - Coaxial RF Surge Protector
Free U.S Ground shipping
$271.24
$226.03
Normally In Stock
Polyphaser DGXZ+15TFTF-BN - Coaxial RF Surge Protector
Free U.S Ground shipping
$261.96
$218.30
Normally In Stock
Polyphaser DGXZ+15NMNF-A - Coaxial RF Surge Protector
Free U.S Ground shipping
$271.24
$226.03
Normally In Stock
Polyphaser DGXZ+15NFNM-A - Coaxial RF Surge Protector
Free U.S Ground shipping
$380.20
$316.83
Normally In Stock
Polyphaser DGXZ+15NFNF-A - Coaxial RF Surge Protector
Free U.S Ground shipping
$250.37
$208.64
Normally In Stock
Polyphaser DGXZ+15DMDF-A - Coaxial RF Surge Protector
Free U.S Ground shipping
$259.64
$216.37
Normally In Stock
Polyphaser DGXZ+06TFTF-A - Coaxial RF Surge Protector
Free U.S Ground shipping
$220.24
$183.53
Normally In Stock
Polyphaser DGXZ+06NMNF-Z - Coaxial RF Surge Protector
Free U.S Ground shipping
$261.96
$218.30
Normally In Stock
Polyphaser DGXZ+06NMNF-A - Coaxial RF Surge Protector
Free U.S Ground shipping
$261.96
$218.30
Normally In Stock
Polyphaser DGXZ+06NFNM-B - Coaxial RF Surge Protector
Free U.S Ground shipping
$208.64
$173.87
Normally In Stock
Polyphaser DGXZ+06NFNM-A - Coaxial RF Surge Protector
Free U.S Ground shipping
$229.50
$191.25
Normally In Stock
Polyphaser DGXZ+06NFNF-F - Coaxial RF Surge Protector
Free U.S Ground shipping
$185.46
$154.55
Normally In Stock
Polyphaser DGXZ+06NFNF-B - Coaxial RF Surge Protector
Free U.S Ground shipping
$220.24
$183.53
Normally In Stock
Polyphaser DGXZ+06DMDF-A - Coaxial RF Surge Protector
Free U.S Ground shipping
$278.20
$231.83
Normally In Stock
Polyphaser DGXZ+06DFDF-A - Coaxial RF Surge Protector
Free U.S Ground shipping
$224.87
$187.39
Normally In Stock
Polyphaser DGXR+06NMNF-Z - Coaxial RF Surge Protector
Free U.S Ground shipping
$201.68
$168.07
Normally In Stock
Polyphaser DGXJ+24NFNM-A - Coaxial RF Surge Protector
Free U.S Ground shipping
$514.67
$428.89
Normally In Stock
Polyphaser DGXJ+24NFNF-A - Coaxial RF Surge Protector
Free U.S Ground shipping
$241.09
$200.91
Normally In Stock
Polyphaser DGXH+48DMDF-A - Coaxial RF Surge Protector
Free U.S Ground shipping
$299.05
$249.21
Normally In Stock
Polyphaser DGXE+30NMNF-A - Coaxial RF Surge Protector
Free U.S Ground shipping
$234.14
$195.12
Normally In Stock
Polyphaser DGXE+24DMDF-A - Coaxial RF Surge Protector
Free U.S Ground shipping
$299.05
$249.21
Normally In Stock
Polyphaser CGXZ+36NMNF-A - Type N M/F Coaxial RF Surge Protector,
Free U.S Ground shipping
$252.68
$210.57
Normally In Stock
Polyphaser CGXZ+36NFNF-A - Type N F/F Coaxial RF Surge Protector
Free U.S Ground shipping
$229.50
$191.25
Normally In Stock
Polyphaser CGXZ+15NMNF-A - Type N M/F Coaxial RF Surge Protector
Free U.S Ground shipping
$252.68
$210.57
Normally In Stock
Polyphaser CGXZ+15NFNF-A - Type N F/F Coaxial RF Surge Protector
Free U.S Ground shipping
$229.50
$191.25
Normally In Stock
Polyphaser CGXJ+36NFNF-A - Type N F/F Coaxial RF Surge Protector
Free U.S Ground shipping
$299.05
$249.21
Normally In Stock
Polyphaser CGXJ+15NFNF-A - Type N F/F Coaxial RF Surge Protector
Free U.S Ground shipping
$299.05
$249.21
Normally In Stock
Polyphaser AGXZ+15TFTF-A - TNC F/F Coaxial RF Surge Protector
Free U.S Ground shipping
$204.00
$170.00
Normally In Stock
Polyphaser WSXM RF Surge Protector - 10 Ghz, 750 Watts
Free U.S Ground shipping
$377.88
$314.90
Normally In Stock
Polyphaser VUF50NHP-MA RF Surge Protector - 1 GHz, 750 Watts
Free U.S Ground shipping
$408.02
$340.02
Normally In Stock
Polyphaser VUF50DHP-ME RF Surge Protector - 200 MHz, 1000 Watts
Free U.S Ground shipping
$470.62
$392.18
Normally In Stock
Polyphaser VUF50DHP-MA RF Surge Protector - 200 MHz, 1000 Watts
Free U.S Ground shipping
$465.98
$388.32
Normally In Stock
Polyphaser VHF50HN-ME RF Surge Protector - 512 MHz, 750 Watts
Free U.S Ground shipping
$217.91
$181.59
Normally In Stock
Polyphaser VHF50HN-MAB RF Surge Protector - 512 MHz, 750 Watts
Free U.S Ground shipping
$217.91
$181.59
Normally In Stock
Polyphaser VHF50HN-MA RF Surge Protector - 512 MHz, 750 Watts
Free U.S Ground shipping
$210.96
$175.80
Normally In Stock
Polyphaser VHF50HN-B RF Surge Protector - 512 MHz, 750 Watts
Free U.S Ground shipping
$190.09
$158.41
Normally In Stock
Polyphaser VHF50HD-MA RF Surge Protector - 512 MHz, 750 Watts
Free U.S Ground shipping
$250.37
$208.64
Normally In Stock
Polyphaser VHF50HD RF Surge Protector - 512 MHz, 750 Watts
Free U.S Ground shipping
$248.05
$206.71
Normally In Stock
Polyphaser VHF50ED-PGR RF Surge Protector - 512 MHz, 750 Watts
Free U.S Ground shipping
$296.74
$247.28
Normally In Stock
Polyphaser VHF50ED-MA-PGR RF Surge Protector - 512 MHz, 750 Watts
Free U.S Ground shipping
$347.75
$289.79

More Information about RF Surge Protectors

A coaxial RF surge protector is composed of a gas discharge tube (GDT) housed between coaxial terminals and connectors. This allows it to be mounted at the coaxial entry point of a radio site or at the base of an antenna. Grounding is provided by using a screw terminal. When a power surge occurs, the GDT shorts the line, diverting the surge through the GDT to ground.

Grounding vs. Surge Protection Grounding is the first step in lightening protection. Antennas should be ground bonded to the tower they are on and the tower should be bonded to a ground rod buried at the base of the tower. When a lightening strike occurs, the surge will travel into the ground. The lightening will also follow the coax cable into the connected devices. Surge protection devices can be installed in-line of the coax to break the connection when a sudden surge travels across them protecting the  connected devices and equipment.

FAQs

Do coax surge protectors protect active antenna systems from indirect lightning strikes?

Yes, coaxial surge protectors are designed to protect active antenna systems, including coaxial cables and related equipment, from indirect lightning strikes and other electrical surges. Coaxial surge protectors are commonly used in a variety of applications, including telecommunications, radio and television broadcasting, and wireless networks.

Do coaxial RF surge protectors provide multi strike capability?

Yes, coaxial RF surge protectors are designed to provide multi-strike capability. They are designed to divert transient voltages away from the equipment they are connected to, and then return to their normal state after the surge has passed. This means that they can protect against multiple surges over time without needing to be replaced.

Coax Lightning Protection Basics

4 things to consider when selecting lightning protection for coax connected devices:

Frequency range

All lightning protectors offer a specific frequency range that they protect against. For example, a protector may offer 698 megahertz all the way up to 2.7 gigahertz of protection.

Connection type

The most common connector is N female, however, there are also N male, TNC or many other different types of connections. In some cases the protector offers bidirectional protection so the input and output can be reversed.

DC pass vs DC block type protectors

DC pass type protectors are used if power is needed at the antenna tower to power a particular device. It allows low voltage current to pass through the center pin of the coax cable to power the device. If no power is needed at the antenna tower, a DC block type protector is used, which would not allow any current to pass through the center pin of a coax connector.

Technology type

The most common and cost effective type of technology is gas tube protection. In most cases, it will last about five years. One thing to consider with gas tube protectors is that they can build up static electricity over time, and if that static electricity discharges, it can damage equipment. The second type of technology is coil inductors. Coil inductors offer very reliable protection against lightning strikes and heavy surges, as well as not degrading over time. They only need replacement with significant lightning strikes. There is no threat of static buildup with a coil inductor protector. The only real disadvantage of using coil inductor technology is the cost. Typically, they are about 30 to 40% more expensive than gas tube technology.