How do I select the proper coaxial surge protector for my application? What are the primary criterion I should pay attention to when comparing different lightning arrestors? This post will review the fundamentals of coaxial arrestor product selection and also provide links to some helpful Articles and Tools to help you learn more about the process and eventually make your own selections!
There are really only four primary selection criteria, with a fifth line below to account for any other requirements.
During >99% of a coaxial arrestor’s life, it is operating as a totally passive connector. Therefore, RF Performance ratings are the only specs that matter during this time!
In order to ensure the best compatibility with the system they will be used in, it is best to match connector types to minimize the use of adapters.
These can be specific and give a detailed Threat Level to test against along with an accompanying residual energy Test Limit, or it can be as broad as “I know I need protection.”
DC Pass Required? – Will you be sending DC Power along the coaxial cable with the RF energy?
This is an important detail, as some arrestors are not capable of passing DC Power!
Are there any additional (secondary) requirements that could influence the proper product choice? These could be related to Environmental, SWaP, Lifetime Ratings, Dimensions, or others!