Solid capacitors or lead the future

[Text|High-tech LED Ganqin] Solid-state capacitors rely on solid conductive polymers as electrolytes. Their conductive mechanism relies on electrons for conductivity, better conductivity, better overall performance, and no electrolyte leakage. The component acts as a protection. At present, some capacitor companies have introduced all-solid-state electronic components, in order to gradually replace the traditional liquid electrolytic capacitors.

Lu Wei, director of emerald technology, said that from the perspective of the conductive mechanism, the traditional liquid capacitor conductive medium is similar to a cup of chemical brine, and the solid capacitor is similar to a copper wire, so the solid capacitor will never explode like a liquid capacitor. Unsafe factors such as burning or drying, and solid capacitors also meet all EU environmental regulations.

In Luo Wei's view, only the use of solid capacitors can completely solve the impact of electrolytic capacitors on the LED drive power and LED Lamp life and characteristics. "With solid capacitors, the short life of the power supply will no longer depend on the capacitor, because the solid capacitor at 125 ° C, through the relevant experimental tests, 7000 hours without any abnormality, the theoretical life is very long."

According to Luo Wei, the solid-state capacitors of Emerald have been widely used in LED bulbs, computers, mobile phone chargers and other fields. "In the future, the pace of popularizing solid-state capacitors in the LED field will be getting closer and closer, especially after the breakthrough in voltage, the fields that can be replaced will become more and more extensive."

In addition, Qi Zhaoxiong, the electronic technology manager of Shenzhen Sunlord, is also optimistic about the advantages of long life, high temperature resistance, high accuracy and good filtering performance of the solid capacitor. The solid capacitor of the company is tantalum capacitor. He said, "The tantalum capacitor does not use electrolyte like ordinary electrolytic capacitors. It is a solid capacitor. It has almost no inductance at low frequencies."

Qi Zhaoxiong said that the solid tantalum capacitor is very suitable for the LED-driven DC-DC converter part, but he also admits that because its capacity will not be too large, there is no advantage in price. "Because the main material of tantalum capacitors is tantalum, this metal is very expensive, so tantalum capacitors are expensive, and they are generally only used in high-end products that are not price sensitive."

Liu Yongzhen, chairman of Emerald, also admitted that based on cost considerations, the current market situation, the liquid capacitor market accounted for 80%, while the solid capacitors only accounted for 20%. “At present, the cost of solid capacitors is several times the cost of liquid capacitors. We are working hard to reduce the cost of solid capacitors and try to reduce it to twice the cost of liquid capacitors.”

Liu Yongwei said that in addition to ensuring that customers' needs are suitable for their customers, it is more important to guide customers to make some changes to product selection and exceed their expectations. "In the future, we will guide customers from the use of liquid capacitors to the direction of solid capacitors."

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