About the high voltage plate capacitor, he actually has a name, called ceramic multi-layer chip capacitor, which can be regarded as a production process with ceramic powder, its internal precious metal palladium structure, it is made by high temperature sintering method silver plated on the ceramic as an electrode. Products are divided into high-frequency porcelain NP0(COG) and low-frequency porcelain X7R two materials.

NP0 is known for its small size, only a small package volume, it is a capacitor with high temperature coefficient and good high-frequency performance, so NP0 is almost used in highly stable oscillation loops, so as a circuit filter capacitor. X7R ceramic capacitor is limited to working in the ordinary frequency circuit for bypass or DC isolation, or the stability and loss requirements are not high occasions, this capacitor should not be used in the AC pulse circuit, because they are easy to be broken down by the pulse voltage, so it is not recommended to use in the AC circuit.

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Temperature compensation type: NP0, also known as COG electrical performance is the most stable, basically does not change with temperature, voltage, time, is an ultra-stable, low loss capacitor material type, suitable for high frequency, ultra high frequency, very high frequency circuit with high stability and reliability requirements.

High dielectric constant type X7R dielectric: X7R is a strong dielectric, and therefore can produce a larger capacity than the NPO dielectric capacitor. The performance of this capacitor is relatively stable, with the change of temperature and voltage time, its unique performance change is not significant, belongs to the type of stable capacitor material, used in straight separation, coupling, bypass, filter circuit and high reliability requirements of high frequency circuit.

Semiconductor type X5R media: X5R has a high dielectric constant and is often used in the production of large capacity capacitors with large specific capacitance and high nominal capacity. However, its capacity stability is higher than X7R, and its capacity and loss are more sensitive to test conditions such as temperature and voltage, which is mainly used in oscillating, coupling, filtering and side-circuit circuits in electronic complete machines.

Advantages: small package size, stable quality, high insulation performance, high pressure resistance

Disadvantages: Small capacity, the current maximum UF, easy to be broken down by pulse voltage.

Performance parameters:

Material NP0(COG).x7r.x5R.Y52. Capacity 0.1PF-PF-1NF-1UF-UF3. Voltage 6.3--1K-2K-5K4. Package ---- Application range: Products are widely used in module power supply, automotive electronics, communication power supply, LED lighting power supply and other fields, has a broad application development prospects hardware classes are generally on the hard city to see where more professional, professional problems professional solution, this is the fastest and best way, better than their own mess around, because the electronic components of the electronic model of those too much will be wrong accidentally, So get a professional to help you out.