The PIP & PHP series of transient voltage suppression modules are designed to protect military and commercial electronic equipment from overvoltages caused by lightning, power interrupt, inductive load switching, AC line fluctuations, and NEMP. These modules find applications in both commercial and military environments, including telecommunications, shipboard and aircraft, power distribution, computers, and power supplies. For military applications, the PHP module sub-assemblies are metallurgically bonded and packaged in a hermetically sealed package. TVS modules are most often used in applications where discrete TVS diodes do not have high enough surge handling capabality to suppress large power surges.