Shenmao Capacitors specialized in aluminum electrolytic capacitors from 1970

Ceramics capacitors used in what place, it has the branch is negative?

by:Shenmao     2020-12-22
Ceramics capacitor is electronic components, a wider range of application is also more common capacitance, the unit price cost is not high, but the effect is very big, the following is to introduce to you: ceramics capacitors from the point of view of voltage can be divided into high pressure ceramics and ultrahigh pressure ceramics capacitors. Ceramics capacitors at the same time is also a kind of ceramic materials used as dielectric, the ceramic surface coated with a layer of metal film, then through high heat sintering as electrodes of a capacitor. Is typically used for high and stable in the oscillation circuit, as a loop, bypass capacitors and padding capacitor. A: the MLCC ( 1) — Miniaturization, high frequency, low loss, low ESR, high stability, high pressure, high insulation, high reliability, no polarity, low value, low cost, high temperature resistance. Mainly used in high frequency circuits. 2: MLCC ( 2 class) — In the miniaturization, high volume, high pressure, no polarity, high reliability, high temperature resistant, low ESR and low cost. Mainly used in the low frequency circuits for straight, coupling, bypass and filter capacitor is used. Ceramics capacitors used in what place? High voltage capacitor must be used in high pressure parts, bolt used in & other; I've ever seen Argon arc welding machine & other; High voltage arc of ceramics capacitor is widely, anti-jamming are used. Ceramics has is negative capacitance? Capacitance is different, the kinds of its design and principle will have the very big difference. From a macro perspective, the capacitance can be divided into polar and non-polar capacitors. For polar capacitor, at the time of installation must ensure precision is negative. Connection error will cause the capacitance is damaged, or even explode. While for non-polar capacitor don't need to worry about this, then into ceramics capacitors are there are negative points? For a great promise and how to distinguish? Ceramics capacitors are non-polar capacitor, so this kind of capacitor during the installation process does not need to distinguish between is negative. And for ordinary common grade electrolytic capacitor, then you can see the two feet length, long is +, short - 。 Patch type tantalum electrolytic capacitor in general can be judged according to their appearance, with one side of the ribbon is positive. Other nonpolar, dacron capacitor, electrolytic capacitor ceramics capacitor, variable and no padder is negative. Has is negative capacitance can be judged according to the following method. When I don't know across the electrodes of a capacitor, can use a multimeter to measure. Capacitance between the poles of the medium is not absolute insulation, the resistance is not infinite, but a limited number, generally in more than 1000 ohms. The resistance of the capacitance between poles called insulation resistance and leakage resistance. Only the positive power of the electrolytic capacitor is ( When electricity is black pens and) And the negative termination power negative ( When electricity is red pens and) , electrolytic capacitor leakage current is small ( Leakage resistance) 。 On the contrary, the electrolytic capacitor leakage current increase ( Leakage resistance decrease) 。 Can assume a very first & other; +” Extremely, multimeter with R * 1 * 100 or R k block, and then will assume & other +” Very black pens and connect with multimeter, another electrode red pens and connect with multimeter, take note of the clock stopped scale ( The clock is great value on the left) For digital multimeter can be directly read readings. Then put the capacitance discharge ( Two wire touch) And then two pens and switch, measured again. The location of the two measurement, whose hands finally stay (on the left Or resistance) The black pens and pick up is electrolytic capacitor anode. Conclusion: ceramics capacitors is no is negative, capacity generally smaller, often used in signal filtering, appear polarity also is only temporary. This is a kind of non-polar capacitors. So use the installation process does not need to identify are negative, optional installation. If you want to buy high pressure ceramics capacitors and other electronic components, please contact us. Shenzhen ShenMao weiye technology co. , LTD. , we have been on the capacitor production and sales for 13 years, we have a full range of electronic components series, also provide complete after-sale protection, there is also a professional customer service team, all products for you. Your needs, we will provide for you.
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