TM40P277 Series description：

The TM40P277 series of onboard power lightning protection modules produced by Ruilongyuan Electronics are mainly used in the surge protection of power ports in the communication industry. The TM series products are divided into single mode protection and full mode protection according to the protection mode. The product is small in size and current. Large capacity (up to 40KA), good protection effect, at the same time with deterioration indication, over-current protection, over-temperature protection and remote remote alarm function, in line with T2 and T3 test requirements.