Welcome to the official website of Zhizhong Electronics Co., Ltd.Company focus: Ceramic Capacitor, Monolithic capacitor

Precautions for using monolithic capacitors
1. Operating voltage: The selection of monolithic capacitors depends on the highest applied voltage, and is affected by factors such as the applied voltage waveform, current waveform, frequency, ambient temperature (capacitor surface temperature), capacitance and other factors. Before use, please check the voltage waveform, current waveform and frequency at both ends of the capacitor (in high-frequency applications, the allowable voltage varies with the capacitor type, please refer to the manual for details) whether it is within the rated value.
2. The pulse (or AC) current of the working current through the capacitor is equal to the product of the capacitance C and the rate of voltage rise, that is, I=C×dV/dt.　Due to the loss of capacitors, when used under high frequency or high pulse conditions, the pulse (or AC) current passing through the capacitor will heat the capacitor itself and cause temperature rise, which will cause thermal breakdown (smoke, fire). Therefore, the safe use of capacitors is not only limited by the rated voltage (or category voltage), but also by the rated current. The rated current is considered to be composed of pulse current (peak current, which is limited by the dV/dt index) and continuous current (expressed in peak-to-peak value or effective value) determined by the breakdown mode. When using, you must make sure that these two The current is within the allowable range.　For capacitors used under high frequency or high pulse conditions, we recommend polypropylene film capacitors or CL23B laminated capacitors.　CBB81, CBB81B, CBB81A series polypropylene film high voltage capacitors provide the rated peak-to-peak current when the duty cycle (DUTY) is 15%. CBB21, CBB21B, CBB21A series S correction capacitors provide rated peak-to-peak current. Under no circumstances is it allowed to exceed the rated peak-to-peak current. When the actual working current waveform is different from the given waveform, the polyester film capacitor is used when its own temperature rise is 10°C or less, and the polypropylene film is used when its own temperature rise is 5°C or less. The surface temperature of the capacitor must not exceed the rated upper limit temperature
Capacitors for suppressing electromagnetic interference of power supply
1 When capacitors are used to eliminate noise in power supply and cross-line circuits, not only normal voltages, but also abnormal pulse voltages (such as lightning) occur, which may cause the capacitors to smoke or catch fire. Therefore, the safety standards of cross-line capacitors are strictly regulated in different countries. Please use X2-MKP X2-MKT CBB6 type capacitors with safety certification.　It is not allowed to use DC capacitors as jumper capacitors.
2 Type X2 capacitors for suppressing electromagnetic interference of power supply are suitable for occasions that will not cause danger when the capacitor fails, such as the power supply is connected across the line, and can withstand 2.5kV pulses.
3 Type Y2 capacitors for suppressing electromagnetic interference of power supply are suitable for occasions that will cause danger when the capacitor fails, such as the power supply is connected across the line, which can withstand 5kV pulses.