The varistor is a non-linear resistance element with zinc oxide as its main component. The surge current tolerance and nonlinear coefficient of the device are very large. When the threshold voltage is lower than the threshold voltage, the resistance is very high, and almost no current flows. If the

Usually the ceramic capacitors that our industry provides are only available in DC circuits. Regarding surge safety ceramic capacitors for 300 VAC circuits, although they have been produced, they require strict pulse and large instantaneous voltage checks that meet international standards, so the fi

The frequency characteristic of the ceramic capacitor refers to the relationship between the capacitance of the capacitor and the like as a function of frequency. Generally speaking, when the capacitor is operated at high frequency, as the operating frequency increases, as the dielectric constant of

1. Filter circuitWhen the CBB capacitor is used for the filter circuit, we need to know the following parameters, how many VDC is the DC voltage, how much VAC is the ripple voltage, how much the ripple frequency is HZ, and how much mA is the ripple current. 2. Suppress battery power interference cir

The current ceramic capacitor barium titanate titanium oxide is extruded into a circular tube, a disk or a disk as a medium. I ceramic capacitors are mainly used in the production of DC capacitors, which are used in electronic products with high degree of electronic integration. Class II ceramic I c

The step-down circuit of the chip capacitor has the following advantages. The circuit is simple, the components are small, the noise is small, and the magnetic interference can be prevented. However, this circuit also has the following disadvantages. A power supply with low power factor, large react

Safety capacitors have been known, but how can we find the safety capacitors in the circuit? Here, Ruican Electronics will tell you how to find the safety capacitors in the circuit. First look for the power line, 220V AC, the safety capacitor is between the power line. Safety capacitors are used in

At present, the market size of multilayer ceramic capacitors is the largest among various types of capacitors such as aluminum electrolytic capacitors, tantalum electrolytic capacitors and film capacitors. Earlier data showed that domestic shipments in Japan were 627.8 billion in 2008, and domestic

When the capacitor is physically connected to the AC circuit, the charge on the capacitor plate has a hindrance to the directional moving charge, which is called the capacitive reactance, and is represented by the letter Xc. Generally speaking, a safety capacitor is like a server connected to a netw

Nowadays, technology is developing rapidly, and film capacitors are gradually used in many industries. The material of the film capacitor film naturally occupies an important position. Today's editor wants to take a look at the characteristics of film capacitors of different materials.Film capacitor