EMI/RFI Shielding in High-Reliability Industrial-Grade Micro Switches: Design and Qualification
Author: Postek Engineering Team | Reading time: 12 minutes Introduction Modern high-reliability industrial platforms — from fighter aircraft to ground vehicles to naval vessels — operate in the most electromagnetically congested environments on Earth. Multiple high-power high-frequency detection systems, communications transmitters, electronic warfare equipment, and digital processing systems create an electromagnetic environment where unshielded electronic components can malfunction within seconds. Micro switches — used in flight control, equipments, engine monitoring, and communications — are potential entry points for EMI/RFI that can cause false state changes, corrupted sensor readings, or unintended system activation. This article examines how integrated EMI/RFI shielding in hermetically sealed micro switches addresses these threats. ...