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What is the difference between MTBF and life expectancy?
We provide a clear explanation of the difference between MTBF and expected lifespan in AC/DC Power Adapter and switching power supplies.
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AC/DC Power Adapter, what is the difference between MTBF and expected lifespan in switching power supplies?
MTBF (Mean Time Between Failures) and expected lifespan are both important indicators of Products reliability
MTBF (Mean Time Between Failures) refers to the average time between failures in Japanese. It is the average continuous trouble-free operating time of a Products during operation or testing, and represents the average time until reliability decreases to 36.8%.
The estimation methods commonly used today include the part count method and the stress analysis method, based on standards such as MIL-HDBK-217F, Telcordia SR332, Siemens Norm, Fides, and UTE C 80-810 (RDF2000).
On the other hand, regarding expected lifespan, the lifespan of an AC/DC Power Adapter or switching power supply is determined by the lifespan of the aluminum electrolytic capacitors. In practice, the power supply is operated under certain conditions, the thermal coefficient of the electrolytic capacitors is calculated, and a reference value for lifespan is then determined.
Want to use your AC/DC Power Adapter for a longer time? What should you do?
If you are looking for a long-life Products, please contact our sales team.
We will propose a Products that meets your needs.