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B25631A0157K700 Datasheet(PDF) 4 Page - TDK Electronics |
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B25631A0157K700 Datasheet(HTML) 4 Page - TDK Electronics |
4 / 9 page Film Capacitors – Power Electronic Capacitors B25631* MKP DC-LSI CAP FILM P PM October 2013 Please read Cautions and warnings and Page 4 of 9 Important notes at the end of this document. Terms and Definitions The following definitions apply to power capacitors according to IEC 61071. Rated capacitance CR Nominal value of the capacitance at 20 °C and measuring frequency range of 50 to 120 Hz. Rated DC voltage VR Maximum operating peak voltage of either polarity but of a non-reversing type wave form, for which the capacitor has been designed, for continuous operation. Ripple voltage Vr Peak-to-peak alternating component of the unidirectional voltage. Maximum surge voltage Vs Peak voltage induced by a switching or any other disturbance of the system which is allowed for a limited number of times and duration. - Maximum duration: 50 ms / pulse - Maximum number of occurrences: 1000 (during load) Insulation voltage Vi Rms rated value of the insulation voltage of capacitive elements and terminals to case or earth. When it is not specified in the product data sheet, the insulation voltage is at least: Vi = 2 R V Maximum rate of voltage rise (dv/dt)max Maximum permissible repetitive rate of voltage rise of the operational voltage. Maximum current Imax Maximum rms current for continuous operation. Maximum peak current Îpk Maximum permissible repetitive current amplitude during continuous operation. Maximum peak current (Îpk) and maximum rate of voltage rise (dV/dt)max on a capacitor are related as follows: Îpk = C · (dv/dt)max Maximum surge current Î s Admissible peak current induced by a switching or any other disturbance of the system which is allowed for a limited number of times (1000 times) and duration (50 ms / pulse). Îs = C · (dv/dt)s Ambient temperature ΘA Temperature of the surrounding air, measured at 10 cm distance and 2/3 of the case height of the capacitor. |
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