How much do you know about X2 safety capacitors

      Product details

      Model/Specification 223/275V Brand/Trademark WONTTAY/TENTA/DAIN/Carli Environmental protection category Lead-free and environmentally friendly Installation method In-line packaging method Bulk products Main uses General/civil electronic information products Lead wire type Radial lead type Features Rectangular type Nominal capacity range 0.022uf Rated voltage range AC275V Temperature coefficient range -40~100

      Features:

      1. Category X2 level

      2. Suitable for bypass, antenna coupling, power jumper circuit and spark elimination circuit, also suitable for EMI filter and switching power supply, wireless equipment, motor and TV applications

      3. Flameproof plastic shell and epoxy resin (in accordance with UL 94V-0)

      4. Self-healing traits

      5. Safety certification: UL, CSA, VDE, SEV, NEMKO, DEMKO, SEMKO, FIMKO, CCEE, KTL...

      The capacitor connected in parallel between the live line and the neutral line suppression is generally called an X capacitor. Since the location of the capacitor connection is also critical, it also needs to comply with relevant safety standards. The X capacitor is also one of the safety capacitors. According to actual needs, the capacitance of the X capacitor is allowed to be larger than the capacitance of the Y capacitor, but at this time, a safety resistor must be connected in parallel at both ends of the X capacitor to prevent the power line from being plugged and unplugged due to the charging and discharging process of the capacitor. Cause the power cord plug to live for a long time. The safety standard stipulates that when the power cord of the working machine is unplugged, within two seconds, the voltage (or ground potential) at both ends of the power cord plug must be less than 30% of the original rated working voltage.

      As one of the safety capacitors, the X capacitor also requires the certification of a safety inspection agency. X capacitors are generally marked with safety certification marks and withstand voltage AC250V or AC275V, but their real DC withstand voltage is as high as 2000V or more. Do not use ordinary capacitors such as nominal withstand voltage AC250V or DC400V to substitute.

      Generally, X capacitors are mostly polyester film capacitors with relatively large ripple current. This type of capacitor has a relatively large volume, but its allowable instantaneous charge and discharge current is also large, and its internal resistance is correspondingly small. ordinary capacitors have low ripple current indicators and high dynamic internal resistance. Using ordinary capacitors instead of X capacitors, in addition to the capacitor withstand voltage can not meet the standard, the ripple current index is also difficult to meet the requirements.