![[Unifive] AC adapter & switching power supply manufacturer](common/img/header-logo.svg){kind=logo}
What is the difference between MTBF and expected lifespan?
AC/DC Power Adapters — Desktop & Wall-Mount, we provide a clear explanation of the difference between MTBF and expected lifespan in switching power supplies.
AC/DC Power Adapters — Desktop & Wall-Mount and Switching Power Supply: What's the Difference Between MTBF and Expected Lifetime?
Both MTBF (Mean Time Between Failures) and Expected Lifetime Are Important Indicators of Products Reliability
MTBF (Mean Time Between Failures) refers to the average continuous failure-free operating time during operation or testing of a Products, and is the average time at which reliability drops to 36.8%.
The commonly used estimation methods today are the Part Count method and the Stress Analysis method. Standards such as MIL-HDBK-217F, Telcordia SR332, Siemens Norm, Fides, or UTE C 80-810 (RDF2000) are included.
On the other hand, regarding expected lifetime, the lifespan of AC/DC Power Adapters — Desktop & Wall-Mount and switching power supplies is determined by the lifespan of aluminum electrolytic capacitors. In practice, the power supply is operated under specific conditions, and by calculating the thermal coefficient of the electrolytic capacitor, a reference value for lifespan is derived.
If you want to use your AC/DC Power Adapters — Desktop & Wall-Mount for a longer time, what should you do?
If you're looking for a long-life Products, etc., please feel free to our sales team.
We will propose a Products that suits your needs.