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Life Prediction of Multilayer Ceramic Capacitors (MLCCs) Based on Accelerated Testing

Author: tonagaiExecutions: 5435
TOP/Shared Formulas (Engineering)/Electrical & Circuits

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This is an empirical formula used to predict the service life of multilayer ceramic capacitors (MLCCs) in the market.
Ln: Service life under normal operating conditions (hours)
La: Lifespan under accelerated conditions (hours)
Vn: Operating voltage under normal conditions (V)
Va: Voltage under accelerated conditions (V)
Tn: Operating temperature under normal conditions (°C)
Ta: Temperature under accelerated conditions (°C)
n: Voltage acceleration factor
θ: Temperature acceleration factor
Lifetime under accelerated conditions
Time
Normal operating voltage
V
Voltage under acceleration conditions
V
Normal operating temperature
℃
Temperature under acceleration conditions
℃
Voltage Acceleration Coefficient
Temperature Acceleration Coefficient
Service life under normal operating conditions Time
Service life under normal operating conditions Year

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