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B25620B0407K881 Datasheet(PDF) 4 Page - EPCOS |
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B25620B0407K881 Datasheet(HTML) 4 Page - EPCOS |
4 / 10 page Film capacitors – Power electronic capacitors MKP PEC DC B2562* Preliminary data FK PEC June 2010 Page 4 of 10 . Lowest operating temperature Θ Θ Θ Θmin Lowest permitted ambient temperature at which a capacitor may be energized. Maximum operating temperature Θ Θ Θ Θmax Highest permitted capacitor temperature during operation, i.e. temperature at the hottest point of the case. Hot-spot temperature Θ Θ Θ Θhs Temperature zone inside of the capacitor at hottest spot. Tangent of the loss angle of a capacitor tan δ δδδ 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. 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 Θ − Θ 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 ⋅ ⋅ π Specifications and characteristics Application: The MKP DC series is designed for DC-link applications. Some typical examples of DC-Link applications are as follows: converters, frequency drives, power conversion, uninterruptible power supplies, transportation, wind power, solar power, power distribution, etc. |
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