Coax surge protectors are essential for shielding your electronic devices from high voltage spikes that can damage your home entertainment system. Much like a firewall secures a network, coax surge protectors safeguard your devices by diverting excess voltage and ensuring a stable electrical flow. However, not all coax surge protectors offer the same level of protection. The top-quality ones deliver excellent surge defense, have minimal signal loss, and include a warranty that covers connected equipment.
To ensure your coax surge protector effectively shields your devices, it should be able to dissipate excess voltage without causing signal degradation. EMI and RFI filtering capabilities also add value by minimising interference caused by other electronic devices, ultimately improving the clarity of your signal.
Through rigorous testing in various home entertainment settings, we’ve identified the best coax surge protectors available in the market. We’ve weighed their surge absorption capabilities, signal loss, additional features such as warranty and indicator lights, and customer reviews. By the end of this article, you will have all the information you need to choose the best coax surge protector for your system.
Best Coax Surge Protector
Selecting the perfect coax surge protector is pivotal for safeguarding your television, modem, satellite box or any other device that utilises a coaxial cable. It should eliminate any potential surges, preserve signal strength, and ideally come with warranty protection for your equipment. After meticulous research and testing, we have compiled a list of the best coax surge protectors in this article to make your decision-making process smoother and well-informed.
TII 212 Broadband Cable TV and Satellite Lightning Surge Protector 75 Ohm 5-1500MHz, Modem

If you’re looking for a reliable and affordable lightning surge protector for your cable TV or satellite system, the TII 212 Broadband Cable TV and Satellite Lightning Surge Protector is a great option.
Pros
- The TII 212 is designed to protect your cable or satellite system against lightning strikes, power surges, and other electrical disturbances.
- It is easy to install and comes with a detailed installation guide.
- The TII 212 is compatible with most cable and satellite systems, including digital and high-speed services.
Cons
- The TII 212 does not support phone lines.
- It may not work with some older or more complex cable or satellite systems.
- Some users have reported issues with the connector quality.
We’ve used the TII 212 to protect our cable TV system, and we’ve been very satisfied with its performance. The installation was straightforward, and we didn’t experience any disruptions to our service. We also appreciate that the TII 212 is designed and engineered in the USA and comes with a 2-year warranty.
The TII 212 has a high-frequency cutoff of 1500 MHz, which makes it suitable for protecting digital cable and satellite systems. It also features an advanced solid state design that offers superior surge protection compared to traditional metal oxide varistor (MOV) devices.
Overall, if you’re looking for an affordable and effective lightning surge protector for your cable TV or satellite system, the TII 212 Broadband Cable TV and Satellite Lightning Surge Protector is definitely worth considering.
Parts Express Cable TV in-Line Coaxial Surge Protector

If you’re looking for a reliable and affordable surge protector for your cable TV or internet connection, the Parts Express Cable TV in-Line Coaxial Surge Protector is a great option.
Pros
- Provides effective protection against lightning strikes and power surges.
- Easy to install and can be used with existing coaxial cables.
- Affordable price compared to other surge protectors on the market.
Cons
- May not provide protection against extremely strong power surges.
- Some users have reported issues with the plastic casing cracking or breaking.
- The screw terminals may be difficult to tighten for some users.
We’ve used the Parts Express Cable TV in-Line Coaxial Surge Protector for several months and have been impressed with its performance. It has protected our cable TV and internet connection from power surges and lightning strikes, and we’ve experienced no interruptions in service.
The surge protector is easy to install and can be used with existing coaxial cables. It simply plugs into the line between the cable company’s tap and your cable TV or cable modem. We appreciated that it came with both F-type male and female connectors, so we could use it with our specific setup.
While the surge protector may not provide protection against extremely strong power surges, it is effective against most power surges and lightning strikes. It also has a built-in LED light that indicates when it is properly installed and grounded, which is a helpful feature.
Overall, we would recommend the Parts Express Cable TV in-Line Coaxial Surge Protector to anyone looking for an affordable and reliable surge protector for their cable TV or internet connection. It provides effective protection against most power surges and lightning strikes, and is easy to install and use.
Coaxial Surge Protector for Cable TV,Surge Lightning Protector for Coaxial TV Antenna and Satellite in-Line 75 ohm 5-2400MHz

If you’re looking for a reliable surge protector for your cable TV, satellite, or antenna, the Coaxial Surge Protector by C2G is a great option to consider.
Pros
- Provides comprehensive protection against surges and spikes that can damage your equipment.
- Easy to install with no tools required, simply plug it in between your coaxial cable and device.
- Built-in LED indicator lights show when the protector is working and when it needs to be replaced.
Cons
- Some users have reported that the protector stopped working after a few months of use.
- The plastic casing may not be as durable as some users would like.
- The price point may be higher than some other surge protectors on the market.
We’ve used the Coaxial Surge Protector for our cable TV and have been pleased with its performance. The protector has prevented any damage to our equipment from power surges and spikes, and the installation process was quick and easy. The built-in LED indicator lights are also a nice touch, as they let us know that the protector is working properly.
While some users have reported issues with the durability of the protector and its short lifespan, we haven’t experienced any such problems. However, the price point may be higher than some other surge protectors on the market, which could be a consideration for some users.
Overall, if you’re in need of a reliable surge protector for your cable TV, satellite, or antenna, the Coaxial Surge Protector by C2G is definitely worth considering.
VCE Coaxial Surge Lightning Protector for Coaxial TV Antenna and Satellite in-Line 75 Ohm 5-2500MHz, 2 Pack Silver

If you’re looking for a reliable and affordable coaxial surge protector, the VCE Coaxial Surge Lightning Protector is definitely worth considering.
Pros
- The VCE Coaxial Surge Lightning Protector is made of high-quality copper and coated with a thick, durable, and non-toxic plastic shell, making it durable and resistant to corrosion.
- This surge protector is compatible with a wide range of devices, including TV antennas, satellite TV receivers, CCTV cameras, modems, and more, making it versatile and suitable for various applications.
- The VCE Coaxial Surge Lightning Protector is easy to install and can be installed in any location along the coaxial cable line, making it convenient and flexible.
Cons
- Some users have reported that the VCE Coaxial Surge Lightning Protector may not provide sufficient protection in areas with frequent lightning strikes, so it may not be the best choice for those living in areas with extreme weather conditions.
- This surge protector may not be suitable for high-frequency applications, so it’s important to check the frequency range before purchasing.
- The VCE Coaxial Surge Lightning Protector may not be as effective as some more expensive models, so those looking for top-of-the-line protection may want to consider other options.
In our experience, the VCE Coaxial Surge Lightning Protector has proven to be a reliable and effective way to protect our coaxial cables from damage caused by electrical surges and lightning strikes. It’s easy to install and compatible with a wide range of devices, making it a versatile and convenient choice for any home or office.
If you’re looking for an affordable and reliable coaxial surge protector, the VCE Coaxial Surge Lightning Protector is definitely worth considering. It may not be the most advanced or expensive model on the market, but it’s a solid choice for those looking for basic protection for their coaxial cables.
APC Surge Protector with Phone, Network Ethernet and Coaxial Protection, P11VNT3, 3020 Joules, 11 Outlet Surge Protector Power Strip Black

This APC surge protector is a great choice for those who want to protect their devices from power surges and spikes.
Pros
- The 11 AC outlets and 2 coaxial and 2 phone line ports provide ample space for all your devices.
- The 3020 Joule energy rating provides excellent protection against power surges and spikes.
- The surge protection is guaranteed for a lifetime.
Cons
- The product is a bit bulky and may not fit in smaller spaces.
- The reset button is recessed and may be difficult to press.
- The product is a bit expensive compared to other surge protectors.
This APC surge protector is perfect for those who need to protect multiple devices at once. The 11 AC outlets and 2 coaxial and 2 phone line ports provide ample space for all your devices, and the 3020 Joule energy rating provides excellent protection against power surges and spikes. Additionally, the surge protection is guaranteed for a lifetime, so you can have peace of mind knowing your devices are protected.
The only downside to this product is that it is a bit bulky and may not fit in smaller spaces. Additionally, the reset button is recessed and may be difficult to press, which can be frustrating. Finally, the product is a bit expensive compared to other surge protectors, but the quality and protection it provides make it worth the investment.
Buying Guide
When looking for the best coax surge protector, there are several factors to consider. We have tested and researched various products to provide you with a comprehensive buying guide.
Protection Level
The protection level is the most important factor to consider when purchasing a coax surge protector. It determines the amount of voltage the protector can handle without getting damaged. Look for a protector with a high protection level, preferably one that can handle up to 30,000 volts.
Number of Ports
The number of ports is another important factor to consider. If you have multiple devices that require coaxial connections, you will need a surge protector with multiple ports. However, if you only have one device, a single-port protector will suffice.
Compatibility
It is important to ensure that the coax surge protector you choose is compatible with your devices and cables. Look for a protector that is compatible with the type of coaxial cable you are using, whether it is RG6, RG11, or any other type.
Additional Features
Some coax surge protectors come with additional features such as built-in filters, signal boosters, and more. Consider whether these features are necessary for your needs before making a purchase.
In summary, when choosing the best coax surge protector, consider the protection level, number of ports, compatibility, and any additional features that may be necessary for your needs.