The DCL value is an important parameter that cannot be ignored in the AVX tantalum capacitor specification. This is the most important decisive parameter that determines its performance. In particular, the decay rate of leakage current of the product and the rate of change of leakage current at high temperature will have a decisive influence on the reliability of the product. Therefore, the reliability of a product in use depends mainly on the leakage current of the product and the rate of change of leakage current of the product at high temperatures. Especially when used in low-impedance switching power supply circuits without resistance protection and high-power pulse charging and discharging circuits, the above characteristics of this product will have a great influence on circuit reliability, which is almost decisive.
The second is capacity accuracy. In the actual working state, the capacity size can determine the filtered signal response speed and amplitude, and the pulse current charging and discharging circuit can determine whether the output current waveform is satisfactory. However, unless the signal with a very high operating frequency needs to be filtered, the high-capacity accuracy must be required. In the general DC-DC circuit, the filtering and the pulse charging and discharging, the small deviation of the capacity does not affect the use effect at all. It will not affect reliability. Therefore, the magnitude of the deviation of the capacity in actual use does not have any effect on reliability.
An important factor that cannot be ignored when selecting AVX tantalum capacitor specifications is the accuracy of DCL and capacity. At the same time, it is best to know more about the specifications, which will help the purchaser or engineer in the choice of tantalum capacitors.
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