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Component Derating Guidelines

Derating Guidelines are designed to quickly expedite the component selection process based upon providing enough operating margins to assure the longest, reliable, usable component and system lifetimes. Every component in a circuit experiences constant sources of stress. A popular rule of thumb is that every increase in temperature of 10 degrees, will shorten the component’s life by 50%. In-rush or high current, power surges, over voltage conditions etc., will lead to a component’s premature failure if the component was not selected with these potential accelerated stresses in mind. I created this table so a designer or a Components Engineer may select a part by accounting for the worst case operating conditions and then building in an additional margin of safety for long component life and thereby increasing the reliability of the entire circuit or system

Download Component-Derate-Guidelines.pdf


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