Supply capacity and error Xixiang divided into six parts

(1) Capacity and Error: Actual capacity and nominal capacity maximum allowable deviation range. General use capacity errors: J-class ± 5%, K-class ± 10%, M-class ± 20%. Precision capacitors allow error is small, while electrolytic capacitors larger error, they use different error levels. commonly used capacitors and resistors whose accuracy level representation of the same with the letters: D Class - ± 0.5%; F Class - ± 1% ; G-class - ± 2%; J Class - ± 5%; K class - ± 10%; M-class - ± 20%. (2) Rated voltage: capacitor in the circuit can be long-term stable and reliable work, is exposed to the maximum DC voltage, also known as pressure for structural, dielectric, the same capacity of the device, the higher the pressure, the greater the volume. (3) Temperature coefficient: in a certain temperature range, the temperature changes every 1 ℃, the relative change in capacitance value as small as possible the temperature coefficient. Electrolytic capacitor insulation resistance is generally small. Relatively speaking, the bigger the better the insulation resistance, leakage is also small. (5) loss: the electric field, the capacitor in the unit time heat and energy consumption. These losses mainly from the dielectric loss and metal loss. Usually loss tangent values ??to represent. (6) Frequency: the capacitor's electrical parameters with the changing nature of the electric field frequency. Work at high frequency capacitor, because the dielectric constant at high frequencies than at low frequencies is small, the capacity is reduced accordingly. Loss is with the frequency increases. Further, when working at high frequencies, the capacitor distribution parameters, such as the electrode sheet resistance, lead, and the resistance between the pole pieces, the pole pieces self-inductance, lead inductance, etc., will affect the capacitor performance. All these capacitors are used so that the frequency is limited. Shenzhen high inductance recovery: www.szsenyuanhs.com