These devices are bidirectional Transient Voltage Suppressors (TVSs) for shipboard equipment and power servicing equipment where large voltage transients endanger voltage sensitive components. It meets all applicable environmental requirements of MIL-S-19500 and is consistent with MIL-E-16400. Designed with MIL-STD-1399 Section 300A (Interface standard for shipboard systems, Electrical power, alternating current) as the controlling specification. The subassembly components can also be tested or screened for military requirements prior to encapsulation into the complete module. The screening would consist of 100% TX level environmental testing per MIL-PRF-19500/507A (Par. 4.3). For ordering these options, use the following suffix:H1 ? Submodule ScreeningH2 ? Submodule and Module ScreeningH3 ? Submodule and Module Screening & Module Group B & C lot testing The individual submodules can also be selected for lower or higher voltage as well as increased power capability compared to the example 200 volt 60 and 90 kW herein