Major differences between solid state capacitors and aluminum electrolytic capacitors

Solid-state capacitors is the full name of conductive polymer aluminum electrolytic capacitor is also called polymer aluminum capacitor, is currently the capacitor in the products of the highest order products, solid capacitor dielectric materials for the functional conducting polymers, can greatly promote the stability and safety of the product, it has to do with liquid aluminum electrolytic capacitor biggest difference, lies in the use of the cathode materials, the aluminum electrolytic capacitor cathode material is used by the electrolyte, and solid-state capacitors is conductive polymer materials, common the electrical conductivity of the polymer has PPY, PEDH. Solid-state capacitors are highly valued by Intel and motherboard manufacturers. What are the advantages of solid-state capacitors compared to previous electrolytic capacitors?

In recent years, as the frequency of PC is getting higher and higher, the power consumption is increasing, which requires higher and higher capacitance of the power supply part of CPU, Memory, PCI EXPressdevices. However, no matter how low the impedance of the traditional liquid aluminum electrolytic capacitor is, there will always be heat. When the temperature rises to a certain degree, the vapor pressure inside the capacitor increases. At this time, the capacitor function of filtering and voltage stabilization will also be constantly reduced or even due to the continuous rise of temperature, and then the drum convex leakage occurs (commonly known as "capacitor burst"), often because of the failure of the parallel capacitor caused by the operation of the motherboard is not normal, or even completely unable to operate and need to be repaired.

Solid-state capacitors with high electric conductivity and excellent heat stability of conductive polymer materials as a solid electrolyte, the electrolyte inside instead of traditional aluminum electrolytic capacitor, significantly improve the shortcomings of the traditional liquid aluminum electrolytic capacitor and show a very excellent electrical characteristics and reliability of conductive polymer aluminum solid electrolytic vessel has become a mainstream development for the next generation solid electrolytic capacitor, the capacitance of the electrical conductivity of the polymer solid state electronics on the molecules move faster (low impedance) and liquid electrolyte ions in the liquid move slower (high impedance), resulting in the conductive polymer has more excellent conductivity index than liquid electrolyte, The conductivity index of the conductive polymer can be thousands or even thousands of times that of the liquid electrolyte! The solid-state capacitance presents a lower impedance at higher frequencies. The lower impedance represents a lower resistance loss, which does not consume electricity to convert to heat, and thus does not cause the temperature to rise, which in turn does not degrade the capacitance, making the system more stable.

It is because of these fine characteristics of solid capacitor, will be favored by the majority of motherboard manufacturers, has become the high-end motherboard on the necessary materials.