How to Select Switches for -55°C to 260°C Extreme Temperatures
Author: Postek Engineering Team | Reading time: 11 minutes Introduction Selecting a switch that operates reliably from -184°C (liquid oxygen temperature) to +260°C (engine compartment hot soak) is one of the most demanding challenges in component engineering. At each extreme, different failure mechanisms dominate — and a switch must survive repeated transitions between them. This guide covers material selection, contact physics at temperature extremes, seal integrity through thermal cycling, and qualification testing — providing a practical framework for engineers specifying switches for extreme thermal environments. ...