Apr. 12, 2024
Electronic aging refers to the phenomenon where electronic devices gradually deteriorate and fail due to various factors during use.
Electronic aging is a common and normal phenomenon because electronic devices have a limited lifespan. Continuing to use them beyond their effective lifespan can lead to problems, and in severe cases, even cause fires.
Several fires have occurred due to the continued use of electronic devices beyond their lifespan. The lifespan of electronic components, such as capacitors used in assembled electronics, also exists. The aging of capacitors can affect the stability and reliability of circuits, such as ceramic capacitors.
Ceramic capacitors are a common type of capacitor that uses ceramic material with a high dielectric constant as a medium, coated with a metal film, and sintered at high temperatures to form a disc shape. They are then coated with protective enamel or encapsulated with flame-retardant epoxy resin.
Ceramic capacitors have a simple structure, low cost, good heat resistance, and high insulation, making them suitable for applications in aerospace, industrial control equipment, digital electronic products, and more. As an important component of circuits, the aging of ceramic capacitors not only affects their own performance but also influences the stability of the circuit.
The aging of ceramic capacitors is mainly caused by the following factors:
Temperature
When ceramic capacitors operate in high-temperature environments, changes in the electrolyte and materials inside may occur, resulting in a decrease in capacitance and an increase in leakage current, leading to performance degradation.
Humidity
High humidity can cause ceramic capacitors to absorb moisture on the surface, leading to changes in the electrolyte's properties and accelerating the aging process of capacitors.
Voltage and Current
Long-term exposure to excessive voltage or current can damage the dielectric inside ceramic capacitors, leading to a decrease in capacitor performance.
The aging of ceramic capacitors affects circuits and electronic devices. In a circuit, each component depends on and influences each other.
As an important component of the circuit, the aging of ceramic capacitors affects the circuit and other components, thereby affecting the performance and reliability of the entire circuit.
Therefore, when ceramic capacitors are approaching their lifespan, they should be replaced promptly to avoid greater losses.
This article is provided by JYH HSU (JEC) Electronics. JEC is a research, development, production, and sales-oriented company specializing in manufacturing and selling various electronic components such as capacitors and resistors.
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