Long Life

Author: Postek Engineering Team | Reading time: 9 minutes Introduction The humble pushbutton switch is one of the most failure-prone components in industrial control panels. Mechanical contacts pit and oxidize. Return springs fatigue. Actuator seals tear. In high-cycle applications — elevator floor selectors, production line stations, public access kiosks — mechanical pushbuttons become a recurring maintenance headache, often failing within 12-24 months of continuous use. Capacitive touch switches eliminate these failure modes by removing moving parts entirely. With 5,000,000+ cycle life, integrated LED backlight, and operation through protective overlays up to 10mm thick, they offer a fundamentally more reliable human-machine interface for demanding environments. This article explores the technology, design considerations, and application fit for capacitive touch switching in industrial settings. ...

Author: Postek Engineering Team | Reading time: 10 minutes Introduction Railway signaling and control systems have some of the longest service life requirements in all of engineering — 20 to 30 years of continuous operation through temperature extremes, vibration, dust, moisture, cleaning chemicals, and in passenger-facing applications, deliberate abuse. Switches that work reliably in a lab at cycle 1,000 must work identically at cycle 1,000,000 after two decades in service. ...