Package size of chip capacitors
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Capacitance: can be divided into non-polar and polar two categories, non-polar capacitor The following two types of packaging the most common, that is 0805,0603;
Polar capacitance is what we usually call the electrolytic capacitor, usually we usually use the most for the aluminum electrolytic capacitor, because of its electrolysis
Quality aluminum, so the temperature stability and accuracy are not very high, and SMD components because of its close to the circuit board, so the temperature
Stability to be high, so the chip capacitors to tantalum capacitors for more, according to their different voltage, chip capacitors can be divided into A, B, C, D four
Series, the specific categories are as follows:
Type Package form Pressure resistance
A 3216 10V
B 3528 16V
C 6032 25V
D 7343 35V
SMD capacitor size representation in two, one is in units of inches to represent, one is expressed in millimeters, paste
Chip capacitor series models are 0402,0603,0805,1206,1812,2010,2225,2512, is the inch representation,
04 indicates a length of 0.04 inches, 02 indicates a width of 0.02 inches, and the like
Model Size (mm)
Inch 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 ≤3.00
Designation of Chip Capacitors
Chip Capacitor Naming:
SMD capacitor named contains the parameters of the size of the chip capacitor, the chip capacitors to do with the material, to achieve the accuracy and requirements
Of the voltage, the required capacity, the end of the requirements and packaging requirements
Example Fenghua series of chip capacitors named
Chip Capacitor Naming:
SMD capacitor named contains the parameters of the size of the chip capacitor, the chip capacitors to do with the material, to achieve the accuracy and requirements
Of the voltage, the required capacity, the end of the requirements and packaging requirements. General order to provide the parameters of chip capacitors have the size of the size,
The required accuracy, voltage requirements, capacity values, and the requirements of the brand can be.
Example Fenghua series of chip capacitors named:
0805CG102J500NT
0805: refers to the SMD capacitor size sleeve is small, is expressed in inches of 08 that is 0.08 inches in length, 05 for the width of
0.05 inches
CG: is to do that capacitance required to use the material, this material is generally suitable for less than 10000PF below the capacitor,
102: refers to the capacitance, the first two digits are significant figures, followed by 2 indicates that the number of zero 102 = 10 × 102 =
1000PF
J: is the capacity of the capacitance value required to achieve the error accuracy of 5%, the dielectric material and the accuracy of the error is matched
500: is required to withstand the voltage of the capacitor 50V the same 500 in front of two significant figures, the back is the number of zero.
N: refers to the end of the material, now generally refers to the end of the three-electrode (silver / copper layer), nickel, tin
T: refers to the packaging, T said Tape packing, B said plastic box bulk packaging
SMD capacitor color, the conventional see much more than a little cardboard box of yellow, and green gray, which will be produced in the specific production process
Students of different differences
SMD capacitor above no printing, which is related to his production process (SMD capacitor is sintered into a high temperature surface, so no way in it
Of the surface printing), while the chip resistor is made of silk screen (you can print the mark).
Chip capacitors in the high-voltage chip capacitors were ordinary chip capacitors,
Series voltage is 6.3V, 10V, 16V, 25V, 50V, 100V, 200V, 500V, 1000V, 2000V, 3000V,
4000V
SMD capacitor size representation in two ways, one is expressed in units of inches, one is expressed in millimeters, the chip capacitor system
Column models are 0201,0402,0603,0805,1206,1210,1812,2010,2225 and so on.
SMD capacitor material is divided into three conventional, NPO, X7R, Y5V
NPO The most stable electrical properties of this material, almost with the temperature, voltage and time changes, suitable for low loss, stability to
High-frequency circuit. Capacity accuracy of about 5%, but the choice of this material can only do the smaller capacity, the conventional 100PF the following, 100PF-
1000PF can produce but the price is higher
X7R NPO than the stability of this material is poor, but the capacity to do more than NPO materials to high capacity accuracy of about 10%.
Y5V such media capacitance, its stability is poor, the capacity deviation of about 20%, more sensitive to temperature and voltage, but this material
Can do a very high capacity, and the price is low, for temperature changes in the circuit.
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