Switches and electrical circuitry should function for many years if designed and assembled correctly, using good manufacturing quality control. However early defects can occur:
Failures after a few years of use can also occur for many reasons:
The specification below provides the recommended improvements needed to improve product durability. They are ranked from bronze to gold based on the effectiveness of the change in improving durability, with bronze being the minimum and gold being the maximum.
Test mains switch; IPC-610E inspection
Gold plated connector coatings
Improved reliability of components can reduce early returns and improve brand reputation which, in turn, can lower business costs and increase long-term sales.
To calculate overall cost savings for your business, use the WRAP cost/benefit analysis tool (currently in draft form and available on request).
Additional cost for better quality and IPC-610 inspection to prevent early returns due to PCB defects.
Additional cost for gold plating that will prevent early returns due to connector failure.
Additional cost for better quality component.