Why do ceramic capacitors age? Click here to find out 2

The aging causes of ceramic capacitors

Although ceramic capacitors have many advantages, their performance may still degrade over long-term use, a phenomenon known as "aging." The aging of ceramic capacitors is primarily caused by the following reasons:diode

1. Natural Aging: Over time, the dielectric material inside ceramic capacitors undergoes gradual physical and chemical changes, leading to a decline in performance. This aging is irreversible and results from the natural aging of the material.

2. Temperature Impact: Temperature is a critical factor affecting the aging of ceramic capacitors. High temperatures accelerate the aging process of dielectric materials, leading to a decline in capacitance. Additionally, periodic temperature variations can cause fluctuations in the capacitance value of ceramic capacitors, compromising their stability.diode

3. Voltage Stress: Prolonged operation under high voltage can damage the dielectric material in ceramic capacitors, leading to a decline in capacitance performance. Excessive voltage stress may also cause dielectric breakdown, resulting in failure.diode

4. Mechanical Stress: Ceramic capacitors may be subjected to mechanical stress during manufacturing, packaging, and usage, such as bending or vibration. These stresses can cause minor structural damage to the capacitor, affecting its performance.

5. Manufacturing Process: Defects in the manufacturing process, such as unevenness in the dielectric layer and impurities in the electrode material, can also affect the aging of ceramic capacitors. These minor defects may gradually expand over prolonged use, leading to a decline in capacitor performance.diode