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The chip capacitor is a kind of capacitor material. Chip Capacitor full name: Multilayer (laminated, laminated) chip Ceramic Capacitor (MLCC), also known as chip capacitor,
chip capacitance. There are two ways to express the chip capacitance, one is expressed in inch units, and the other is expressed in millimeter units.

dimension

The chip capacitor is composed of a ceramic dielectric diaphragm printed with a good electrode (inner electrode) in a misplaced way, after a one-time high temperature sintering
to form a ceramic chip, and then the two ends of the chip are sealed with a metal layer (outer electrode), thus forming a structure similar to monolithic, so it is also known as
monolithic capacitor. The chip capacitor has two dimensions, one is expressed in inches, and the other is expressed in millimeters. The series models of the chip capacitor are
0402, 0603, 0805, 1206, 1210, 1808, 1812, 2010, 2225, 2512, and these are inch representations. 04 means the length is 0.04 inches, 02 means the width is 0.02 inches,
other similar size (mm)

British dimensions Metric dimensions Length and tolerance Width and tolerance thickness and tolerance

0402 1005 1.00±0.05 0.50±0.05 0.50±0.05

0603 1608 1.60±0.10 0.80±0.10 0.80±0.10

0805 2012 2.00±0.20 1.25±0.20 0.70±0.20 1.00±0.20 1.25±0.20

1206 3216 3.00±0.30 1.60±0.20 0.70±0.20 1.00±0.20 1.25±0.20

1210 3225 3.00±0.30 2.54±0.30 1.25±0.30 1.50±0.30

1808 4520 4.50±0.40 2.00±0.20 ≤2.00

1812 4532 4.50±0.40 3.20±0.30 ≤2.50

2220 57505.70±0.40 5.00±0.30 ≤2.50

2225 5763 5.70±0.50 6.30±0.50 ≤2.50

3035 7690 7.60±0.50 9.00±0.05 ≤3.00

The color of the chip capacitor is generally seen as a little lighter than the cardboard box yellow, and cyan gray, which will have different differences in the specific production process.

encapsulation

Chip capacitor: can be divided into non-polar and polar two categories, non-polar capacitor the following two types of packaging is the most common, that is, 0805, 0603;
The polar capacitor is what we usually call the electrolytic capacitor, generally we usually use the most for the aluminum electrolytic capacitor, because its electrolyte is
aluminum, so its temperature stability and accuracy are not very high, and the chip element because of its close to the circuit version, so the temperature stability is
required to be high, so the chip capacitor is more than the tantalum capacitor, according to its different voltage resistance, The chip capacitor can be divided into A, B, C, D four series,

The specific categories are as follows: Type Package type Withstand voltage

A 3216 10V

B 3528 16V

C 6032 25V

D 7343 35V

sort

First, NP0 capacitor

Two, X7R capacitor

Third, Z5U capacitor

Four, Y5V capacitor

Difference: The main difference between NP0, X7R, Z5U and Y5V is their different filling media. Under the same volume, the capacity of the capacitor composed of different
filling media is different, and the resulting dielectric loss and capacity stability of the capacitor are also different.

NP0 capacitor

NP0 is one of the most commonly used monolithic ceramic capacitors with temperature compensation characteristics. Its filling medium is composed of rubidium, samarium
and some other rare oxides.

NP0 capacitor is one of the most stable capacitors for capacitance and dielectric loss. At temperatures from -55 ° C to 125 ° C, the capacitance changes to 0±30ppm/ ° C, and
the capacitance changes with frequency to less than ±0.3ΔC. The drift or lag of the NP0 capacitor is less than ±0.05%, which is negligible compared to the film capacitor
greater than ±2%. The typical variation in capacity relative to service life is less than ±0.1%. The capacitance and dielectric loss of NP0 capacitors vary with frequency
depending on the type of package. The frequency characteristics of large package size are better than that of small package size. The following table shows the
capacity ranges available for NP0 capacitors.

Sealed DC=50V DC=100V

0805 0.5-- 1000pF 0.5-- 820pF

1206 0.5-- 1200pF 0.5-- 1800pF

1210 560---5600pF 560---2700pF

2225 1000pF-- --0.033μF 1000pF-- --0.018μF

NP0 capacitors are suitable for slot capacitors in oscillators, resonators, and coupling capacitors in high-frequency circuits.

X7R capacitor

The X7R capacitor is known as a temperature-stable ceramic capacitor. When the temperature is -55 ° C to 125 ° C, the capacity change is 15%, it should be noted that the
capacitor capacity change is non-linear at this time.

The capacity of the X7R capacitor is different under different voltage and frequency conditions, and it also changes with time, changing about 1%ΔC every 10 years,
showing a change of about 5% over 10 years.

X7R capacitors are mainly used in less demanding industrial applications where the capacity change is acceptable when the voltage changes. Its main feature is that the
power capacity can be relatively large under the same volume. The following table shows the capacity ranges available for X7R capacitors.

Sealed DC=50V DC=100V

0805 330pF-- --0.056μF 330pF-- --0.012μF

1206 1000pF-- --0.15μF 1000pF-- --0.047μF

1210 1000pF---0.22μF 1000pF-- 0.1μF

2225 0.01μF-- 1μF 0.01μF-- 0.56μF

Z5U capacitor

Z5U capacitors are called "universal" ceramic monolithic capacitors. The first thing to consider here is the use of temperature range, the main thing for Z5U capacitors
is its small size and low cost. For the above three ceramic monolithic capacitors, it is said that the Z5U capacitor has the largest capacitance under the same volume. However,
its electrical capacity is greatly affected by the environment and working conditions, and its aging rate can decrease by up to 5% every 10 years.

Despite its unstable capacity, due to its small size, low equivalent series inductance (ESL) and equivalent series resistance (ESR), and good frequency response,
it has a wide range of applications. Especially in the application of decoupling circuits. The following table gives the range of values for Z5U capacitors.

Sealed DC=25V DC=50V

0805 0.01μF-- 0.12μF 0.01μF-- 0.1μF

1206 0.01μF-- 0.33μF 0.01μF-- 0.27μF

1210 0.01μF-- 0.68μF 0.01μF-- 0.47μF

2225 0.01μF-- 1μF 0.01μF-- 1μF

Other technical indicators of Z5U capacitors are as follows:

Operating temperature range 10℃ -85 ℃

Temperature characteristic 22% ---- -56%

The maximum dielectric loss is 4%

Y5V capacitor

The Y5V capacitor is a general purpose capacitor with a certain temperature limit, and its capacity can vary from 22% to -82% in the range of -30 ° C to 85 ° C.

Y5V's high dielectric constant allows capacitors up to 4.7μF to be manufactured at small physical sizes.

The following table shows the value range of Y5V capacitors

Sealed DC=25V DC=50V

0805 0.01μF-- 0.39μF 0.01μF-- 0.1μF

1206 0.01μF-- 1μF 0.01μF-- 0.33μF

1210 0.1μF-- 1.5μF 0.01μF-- 0.47μF

2225 0.68μF-- 2.2μF 0.68μF-- 1.5μF

Other technical indicators of Y5V capacitors are as follows:

Operating temperature range -30℃ -85 ℃

Temperature characteristics 22% ---- -82%

The maximum dielectric loss is 5%