Terminal spacings for high-altitude and ultrahigh-temperature electronic transformer applications

Future electronic equipment mounted aboard high-speed military aircraft and guided missiles will have to withstand high altitudes, ultrahigh temperatures, and radiation. Present goals as established by the U. S. Air Force for electronic power transformers are 100,000 feet altitude, 500 C (degrees centigrade) ambient temperature, and intense nuclear radiation. With terminal spacings normally designed for air dielectric strengths at altitudes up to approximately 50,000 feet and temperatures up to 125 C, additional information is needed on breakdown voltages under these new conditions.