Silicon Capacitors FAQQWhat is the relationship between BV (breakdown voltage, BDV) and recommended working voltage?


The withstanding voltage of a silicon capacitor is defined by the BV, and the recommended working voltage is defined by the product lifetime and operating temperature.
Murata indicates as the recommended working voltage, the maximum DC voltage (continuously applied) at which the product is projected to have a service life of 10 years in a 100℃ environment. The maximum recommended working voltage is approximately 1/3 to 1/2 the breakdown voltage depending on operating conditions and target lifetime. For more details refer to the application note “Lifetime of 3D-capacitors in Murata technologies,” as the BV differs between products.

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Murata Silicon Capacitor
Breakdown voltage
Recommended working voltage Murata dielectric
molding technology names
Standard Type
11V 3.6V PICS3 SMD
50V 21V PICSHV50 Vertical
100V 32V PICSHV100 Vertical
150V 68V PICSHV150 Vertical

Related terms : Silicon Capacitor(Si-Cap), Silicon IPD(Si-IPD, Integrated Passive Device), Breakdown voltage(BV, BDV), rated voltage(RV), recommended voltage, working voltage, drive voltage, voltage tolerance, withstanding tolerance, Derating

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