Important indicators of electronic components

< p> Derating design is to test the key parameters of all parts at the initial stage of the design under two conditions of normal use of the machine and worst environment use, compare the measured data with the rated parameters of the part, and finally use the derating made by the company Design to determine whether it is appropriate. Usually different demolition plants have different derating design standards. In derating design, there is a situation where the designer should pay special attention to the fact that some parameters of many components have a decay curve with temperature. When the temperature changes, the rated parameters will also change, so special care should be taken when using.

Only such comprehensive considerations can ensure reliability. Temperature is an important indicator for evaluating components. For example, the 10 ℃ rule of electrolytic capacitors: every time the temperature rises by 10 ℃, its life will be reduced by half; every time the temperature drops by 10 ℃, its life will be doubled. This shows the importance of temperature on the characteristics of parts. How to make components work at an appropriate temperature must be considered by designers in the early stage of design. Therefore, the correct measurement of temperature has become extremely critical, and the measured data of the same part at different test locations are usually different. Different parts have different test locations, and the non-standard operation of the film capacitor test point in the whole machine factory will also cause component failure.

Each component is a sophisticated commodity and has its own unique use environment. If used improperly, it will cause defects. A few common examples are as follows: For electrostatic sensitive components (MOS tubes), the components are damaged by static electricity because the operator does not have an electrostatic protection device.

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