Performance comparison between solid state capacitor and traditional aluminium electrolytic capacitor

Performance comparison between solid state capacitor and traditional aluminium electrolytic capacitor

Capacitors are energy storage elements used in circuits for tuning, filtering, coupling, bypass, energy conversion, and delay. Capacitors are often called capacitors. According to its structure, it can be divided into three types: fixed capacitor, semi-variable capacitor and variable capacitor.

Solid aluminium electrolytic capacitor is short for conductive polymer solid aluminium electrolytic capacitor, and is one of the highest-grade products in capacitor products.

Solid-state aluminium electrolytic capacitors have the same structure and shape as traditional capacitors, and are used in the same way. They usually play the roles of power bypass, decoupling, signal coupling and time constant setting, DC isolation, energy conversion and delay in power supply circuit or in Medium-frequency and low-frequency circuit. They are generally not used in AC power supply circuit unless they are non-polar category.

High thermal stability is an important feature of solid state capacitance. Solid aluminium electrolyte capacitance can work steadily in high temperature environment and is not susceptible to temperature changes. It does not affect its high conductivity even in high temperature operation environment.

In high temperature environment, the solid-state capacitance can still operate normally and maintain a variety of electrical properties, its capacity changes no more than 15% in the full temperature range, which is significantly better than the liquid electrolytic capacitance. At the same time, the capacity of the solid-state electrolytic capacitor is not related to its working voltage, which ensures that it works stably in the environment of voltage fluctuation, which can directly improve the performance of the motherboard.

Working temperature directly affects the lifetime of electrolytic capacitance. Solid electrolytic capacitance and liquid electrolytic capacitance have significantly longer lifetime under different temperature environments. Solid-state capacitors are commonly used on industrial motherboards and long-running machinery and equipment. They last up to 50,000 hours (about 5.7 years) at 85 C, whereas liquid capacitors last only 8,000 hours (about 0.9 years), and solid-state capacitors last six times longer than normal liquid capacitors.

Solid electrolytes do not evaporate and expand, or even burst, as liquid electrolytes do under high heat conditions. Even if the temperature of the capacitor exceeds its tolerance limit, the solid electrolyte is only melting, which does not cause the metal housing of the capacitor to burst and burn, and is therefore safe.