Package size of chip capacitors

Encapsulation size
capacitors: can be divided into non-polar and polar. The following two types of packages are the most common for non-polar capacitors, namely 0805 and 0603; and polar
capacitors are what we usually call electrolytic capacitors. Generally, the most commonly used ones are aluminum electrolytic capacitors. Since the electrolyte
is aluminum, its temperature stability and accuracy are not very high. Since the chip components are close to the circuit board, they require
high temperature stability. Therefore, the chip capacitors are mostly tantalum capacitors. According to their withstand voltage, the chip capacitors can be divided into four
series: A, B, C, and D. The specific classification is as follows:
Type Package Withstand voltage
A 3216 10V
B 3528 16V
C 6032 25V
D 7343 There are two ways to express the size of 35V
chip capacitors, one is expressed in inches, and the other is expressed in millimeters.
The series models of chip capacitors are 0402, 0603, 0805, 1206, 1812, 2010, 2225, and 2512, which are expressed in inches.
04 means the length is 0.04 inches, and 02 means the width is 0.02 inches. Other similar models are expressed in inches.
Model size (mm)
Imperial size Metric size 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 3.20±0.30 1.60±0.20 0.70 ±0.20 1.00±
0.20
1.25±0.20
1210 3225 3.20±0.30 2.50±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
2225 5763 5.70±0.50 6.30±0.50 ≤2.50
3035 7690 7.60±0.50 9.00±0.05 ≤3.00The
naming of chip capacitors
The naming of chip capacitors:
The parameters included in the naming of chip capacitors are the size of the chip capacitors, the materials used to make this chip capacitor, the required accuracy, the required
voltage, the required capacity, the requirements of the terminals and the requirements of the packaging
Example: The naming of Fenghua series chip capacitors
The naming of chip capacitors:
The parameters included in the naming of chip capacitors are the size of the chip capacitors, the materials used to make this chip capacitor, the required accuracy, the required
voltage, the required capacity, the requirements of the terminals and the requirements of the packaging. Generally, the parameters required to order chip capacitors are the size, the
required accuracy, the voltage requirements, the capacity value, and the required brand.
For example, the naming of Fenghua series chip capacitors is:
0805CG102J500NT
0805: refers to the small size of the chip capacitor, which is expressed in inches. 08 means the length is 0.08 inches, and 05 means the width is
0.05 inches.
CG: refers to the material required to make this capacitor. This material is generally suitable for capacitors less than 10000PF.
102: refers to the capacitance. The first two digits are valid digits, and the last 2 indicates how many zeros there are. 102=10×102, which is =
1000PF.
J: requires the capacitance value of the capacitor to achieve an error accuracy of 5%. The dielectric material and the error accuracy are paired.
500: requires the capacitor to withstand a withstand voltage of 50V. Similarly, the first two digits of 500 are valid digits, and the last refers to how many zeros there are.
N: refers to the terminal material. The general terminals now refer to three-layer electrodes (silver/copper layers), nickel, and tin.
T: refers to the packaging method. T means tape packaging, and B means plastic box packaging
. The color of the chip capacitor is usually a lighter yellow than the cardboard box, and blue-gray. This will produce different
differences in the specific production process
. There is no printing on the chip capacitor, which is related to its production process (the chip capacitor is sintered at high temperature, so it is impossible
to print on its surface), while the chip resistor is silk-screened (printing marks can be printed).
Chip capacitors include medium and high voltage chip capacitors and ordinary chip capacitors.
The series voltages include 6.3V, 10V, 16V, 25V, 50V, 100V, 200V, 500V, 1000V, 2000V, 3000V,
4000V.
There are two ways to express the size of chip capacitors, one is expressed in inches and the other is expressed in millimeters.
The models of chip capacitor series are 0201, 0402, 0603, 0805, 1206, 1210, 1812, 2010, 2225, etc.
The materials of chip capacitors are generally divided into three types: NPO, X7R, and Y5V .
NPO has the most stable electrical properties and hardly changes with temperature, voltage, and time. It is suitable for
high-frequency circuits with low loss and stability requirements. The capacitance accuracy is about 5%, but this material can only be used to make smaller capacitance, usually below 100PF. 100PF-
1000PF can also be produced but the price is higher
. X7R This material is less stable than NPO, but the capacitance is higher than NPO material, and the capacitance accuracy is about 10%.
Y5V This type of dielectric capacitor has poor stability, capacitance deviation is about 20%, and is sensitive to temperature and voltage, but this material
can achieve very high capacitance and low price, suitable for circuits with little temperature change.