Toчкa oпopы (08.11.2021 17:06, просмотров: 282) ответил Argon на Керамические чип-конденсаторы с каким запасом по напряжению можно
использовать? Например, в 5В цепи X5R с предельным до 6,3В выживет?
Вопрос - не "выживет ли", а "сколько ёмкости останется". Тёрли тут
уже не раз. Kemet - так пишет: Working Voltage: Refers to the maximum continuous DC working voltage permissible across the entire operating temperature range. The reliability of multilayer ceramic capacitors is not extremely sensitive to voltage, and brief applications of voltage above rated will not result in immediate failure. However, reliability will be degraded by sustained exposure to voltages above rated.
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Dielectric Withstanding Voltage: 250% of rated voltage for 5 seconds with current limited to 50mA at 25°C. Limits per Table 3. Dielectric withstanding voltage (DWV) is the peak DC voltage which a capacitor is designed to withstand without damage for short periods of time. All KEMET multilayer ceramic surface mount capacitors will withstand a DC test voltage of 2.5 x the rated voltage for 60 seconds. KEMET specification limits for all electrical characteristics at standard measurement conditions are shown in Table 3. Variations in these properties caused by changing conditions (temperature, voltage, frequency, and time) are covered in the following sections.
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