Publications Details
Thermal vacuum tests of a five watt pseudo chip in a SEM-X electronic module clamped in a satellite box
A five watt pseudo chip in the middle of a SEM-X circuit card was tested with various heat conduction paths in a satellite type electronic box while mounted in a vacuum chamber. Previous tests showed low temperature differentials with the use of circuit board clamps. Flight hardware with thin box walls, low mass module frames, and thin heat covers were tested to determine the temperature differential at 5.0 watts as well as at lower powers. The smallest temperature differential was 23 degrees Celsius between the 5 watt pseudo chip and the cold plate.