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What materials are needed for electrolytic capacitors
2019-03-07
Electrolytic capacitance is a kind of capacitance. Metal foil is the cathode (aluminium or tantalum), and the oxide film (alumina or tantalum pentoxide) which is close to the metal is the dielectric. The cathode is composed of conductive material, electrolyte (electrolyte can be liquid or solid) and other materials. Be……
How to Identify Positive and Negative Electrodes in Electrolytic Capacitors
2019-03-07
First, take out an electrolytic capacitor. The first method is to look at the electrolytic capacitor hose. The end of the hose is marked with a negative electrode. The other end of the positive electrode is not indicated. The second method is to look at the electrolytic capacitor pins. One end with a grid at the pin re……
How to detect the electrolytic capacitor?
2019-03-07
he operation of electrolytic capacitor detection is as follows:
Turn the multimeter to R × 1k block, and connect the two test leads to the two wire ends of the capacitor. Pay attention to the swing of the hands.
When the normal capacitor is detected, the hands first swing to the right with a large amplitude, and then……
What are the categories of electrolytic capacitors?
2019-03-07
Electrolytic capacitors are divided into the following types:
1. Bolt type aluminum electrolytic capacitor, the bolt type belongs to high voltage and high capacity, the voltage is between 200-700V, and the capacity is 1800uf-33000uf.
Validity period of electrolytic capacitor
2019-03-07
The capacitance of the liquid electrolyte is mainly a trace amount of water in the electrolyte. This moisture is used to be electrolyzed to hydrogen and oxygen when the aluminum electrode has insufficient pressure, and then the alumina electrode increases the compressive strength. There is still a very small gap around……
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