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B25620B1347K321 Datasheet(PDF) 8 Page - TDK Electronics |
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B25620B1347K321 Datasheet(HTML) 8 Page - TDK Electronics |
8 / 23 page Film Capacitors B2562* Power Electronic Capacitors MKP DC CAP FILM P PM January 2016 Please read Cautions and warnings and Page 8 of 23 Important notes at the end of this document. Maximum operating temperature max Highest permitted capacitor temperature during operation, i.e. temperature at the hottest point of the case. Hot-spot temperature hs Temperature zone inside of the capacitor at hottest spot. hs =Tamb+ Irms 2*ESR*Rth Tangent of the loss angle of a capacitor tan Ratio between the equivalent series resistance and the capacitive reactance of a capacitor at a specified sinusoidal alternating voltage, frequency and temperature. Series resistance Rs The sum of all Ohmic resistances occurring inside the capacitor. ESR ESR (Equivalent Series Resistance) representing entire active power in capacitor. ESR = C tan = C R s 0 tan Thermal resistance Rth The thermal resistance indicates by how many degrees the capacitor temperature at the hot spot rises in relation to the dissipation losses. Maximum power loss Pmax Maximum permissible power dissipation for the capacitor’s operation. Pmax = th A hs R Self inductance Lself The sum of all inductive elements which are contained in a capacitor. Resonance frequency fr The lowest frequency at which the impedance of the capacitor becomes minimum. fr = R self C L 2 1 |
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