X2 ATC capacitor belongs to the most common type of capacitor on the circuit, especially in the power supply circuit, can often see its figure, but many amateurs on X2 capacitor is not too well understood, x2 ATC capacitor used in what place? What role does it have? Today I will explain in detail the relevant knowledge.
1, the main role is to suppress power electromagnetic interference.
X2 safety capacitor role although many, but the core role is used in the power supply circuit, its role is to suppress power supply electromagnetic interference, generally used in the power supply entrance between the zero line and the fire line, as is to suppress differential mode interference, can play a good role in the differential mode filtering. Many people in order to save money, do not want to use X2 safety capacitors, which is wrong, although not use the power supply for a short period of time will not be a problem, but it will allow the power supply EMI suppression capacity is significantly weakened, there is a risk of damage to other hardware.
X2 amperometric capacitors used for suppressing electromagnetic interference have good consistency in appearance; good self-healing; strong resistance to moisture; can withstand high currents; long life and excellent overvoltage resistance. Mainly used for is across the line, suppression of surge, AC occasions EMI filtering; power switch, such as: lamps, power supply, etc.
200F 2,7 V superkondensatorius 16 V

200F 2,7 V superkondensatorius 16 V

2、It is used for capacitance suppression and voltage reduction.
X2 amperometric capacitors can be used in addition to suppressing power supply EMI, but also for capacitance drop circuit, generally connected in series in the circuit. Resistive buck circuit is very simple, so that its cost is also particularly low, but the quality of the resistive buck capacitor requirements are extremely high, if the quality of the X2 amperage capacitor for resistive buck is not up to par, it is easy to appear capacitance capacity decay fast, and eventually lead to the circuit power supply is insufficient, the circuit can not work properly.
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