I have some GDTs that I can't find any info on. Here are the markings:
3P90L4 - 3 leaded ceramic CM3-90 - 3 leaded ceramic CPC9119M - 3 leaded ceramicI would like to use them for surge protection on the cable where it enters the house. I plan on mounting them in a small metal box with f-connectors at each end. The cable is grounded to a ground rod, I don't know how long and was installed by the cable company with 3ft of 12ga wire to ground.
If these can't be identified, how can I test them for breakdown voltage?
Thanks Jay