SMD high voltage capacitor 1206 222K 250V

Material: COG NPO X7R X5R Y5V

NPO (COG) material belongs to Class I high-frequency capacitor. Its capacitance is
stable and does not change with environmental temperature, voltage and time
changes. It is suitable for high-frequency electronic circuits.

The X5R/X7R material is a class II low-frequency capacitor, its capacitance is
relatively stable, and it is relatively sensitive to changes in ambient
temperature, voltage and time.

Y5V material belongs to class II low frequency capacitor, and its capacitance
changes greatly due to the influence of environment, temperature, voltage and
time.



Series: 0402, 0603, 0805, 1206, 1210, 1808, 1812, 2220, 2225;

Capacity: 0.2p-100uF 10V-5000V 0.2Pf--10Uf full range;

Deviation: A=±0.05pF, B=±0.1pF, C=±0.25pF, D=±0.5pF, F=±1%, G=±2%, J=±5%,
K=±10%, M=±20%, Z=-20%+80%



common problem



As the capacitance value of MLCC continues to increase, the equipment used to
measure capacitance in the past may not be able to provide accurate measurement of
large capacitance components. In particular, the meter cannot drive enough AC
voltage to measure the full capacitance. The following discussion contains answers
to frequently asked questions and measurement tips for high-volume measurement of
MLCC.



Q1. Why are the measured values smaller when measuring some large capacitance
MLCCs?

A1. When measuring capacitor, it is important to understand the difference between
the true value, the effective value and the indicated value. The true value is the
value of the capacitor when it is an ideal component without parasitic inductance
and resistance. The effective value is the sum of the actual (real part) and
vector (imaginary part) of the component, and is related to the frequency. The
indicated value is the value displayed by the measuring device and is subject to
measurement accuracy.

When measuring large capacitance value capacitor, the voltage level
(representation value) set on the meter is not equal to the voltage level
(effective value) transmitted in the DUT (Device Under Test).



Q2. What voltage and frequency should be suitable for capacitor?

A2. MLCC capacitor> 10μF are regarded as large capacitance capacitor.
Improvements in manufacturing technology have allowed ceramic capacitor
manufacturers to produce high-capacity capacitor close to tantalum capacitor and
aluminum electrolytic capacitor. The test specifications of these "large
capacitance" MLCCs are tested under the same conditions as tantalum capacitor. The
measuring voltage should be 0.5 Vrms and the measuring frequency should be 120Hz.
The following table summarizes and describes the test conditions.



Capacitor AC voltage frequency

C ≤ 1000pF 1.0 ± 0.2 Vrms 1MHz ± 10%
1000pF 10μF 0.5 ± 0.2 Vrms 120 Hz ± 10%
Physical Anatomy of SMD High Voltage Ceramic Capacitors

▲ Physical anatomy diagram



Applicable industry



Suitable for LED lighting related products, power products, household appliances,
computer side office products, large industrial equipment controllers, network
equipment, communication products, digital products, automotive electronics,
security monitoring systems and other fields.

Minimum Order: 20000 bags

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