永久免费观看的毛片手机视频-日韩精品无码一区二区三区-国产精品一区在线观看你懂的-亚洲学生妹高清av-久久香综合精品久久伊人

Hello! Welcome to the website of Dongguan Youchen Electronic Technology Co., Ltd.

Youchen Technology

Chip Capacitor/Electrolytic Capacitor/Ceramic Capacitor Supplier
18929295505
admin@dgyouchen.com
Current Page: Home > News > Corporate news
News

How to improve the service life of SMD aluminum Electrolytic capacitor?

2023-03-23
1. Control the ripple current value during operation


PatchAluminum Electrolytic capacitorWhen used in pulsating circuits, the main factor that causes power consumption and heating is the ripple current (ripple voltage for capacitors with smaller capacity). Generally, the relationship curve between Failure rate and temperature is measured under DC voltage without ripple, only considering the leakage current, which is almost the same as the temperature in the center of the core and the ambient temperature at this time.


However, in practical applications, the heating caused by the ripple current can cause the center temperature of the core to rise, reaching a maximum of tens of degrees Celsius. (The core temperature rise depends on the ambient temperature of the Electrolytic capacitor and the control of ripple current). Therefore, high ripple currents can easily cause the electrolyte of the core to dry up, leading to early failure of the capacitor. Meanwhile, prolonged ripple current exceeding the specified value is also one of the factors leading to the opening of the capacitor explosion-proof valve.


2. Choose capacitors with lower leakage current values


As a long-life Electrolytic capacitor, in addition to the consideration of the above four external factors, capacitors of the same type with very small leakage current should also be selected. This indicates that it has a high-quality oxide film and suitable working electrolyte. Once the ambient temperature is high, the corresponding leakage current increases slowly. Otherwise, under the condition of mutual influence, when the leakage current sharply increases, the internal temperature will rise, which in turn will make the leakage current rise again, and it will deteriorate until the Thermal equilibrium is lost and destroyed.


3. Reduce the upper limit of rated voltage usage


Reducing the upper limit of the rated voltage, that is, reducing the working field strength of the dielectric oxide film, will be applicable to Electrolytic capacitor. After reducing the load by half, the lifespan of the capacitor can be increased by up to two orders of magnitude.


In fact, if the aluminum oxide film is damaged and corroded, the repair oxidation worship can only be carried out at the highest working voltage, and it is difficult to restore the thickness of the oxide film at the original formation voltage locally, so excessively reducing the working voltage is not the most appropriate measure for Aluminum electrolytic capacitor.


4. Reduce ambient temperature


Reduce the ambient temperature so that the Electrolytic capacitor does not work at the upper limit temperature. In addition, consider the heating effect of the capacitor itself, which is particularly important for liquid electrolyte products. If high temperatures are generated, it will cause a sharp increase in leakage current and gas, causing the shell to be in a state of rapid internal pressure increase; In addition, high temperature can accelerate the drying of the electrolyte, which relatively shortens the product life.


Therefore, for the Electrolytic capacitor with long service life requirements, the working temperature should be controlled below 50 ℃, so that the corresponding service life can be increased by 1~2 orders of magnitude. For example, a computer capacitor that can work for 20 years at 45 ℃ can only work for 1-2 years at 85 ℃. If it needs to be applied at the upper limit category temperature (85 ℃), the center temperature of the capacitor core should not exceed 95 ℃, and it depends on the properties of the selected working electrolyte. This high temperature effect on solid tantalum capacitors is not as serious as Aluminum electrolytic capacitor, but it is certainly harmful.

Previous Page:What are the life effects of SMD Electrolytic capacitor?

Next Page:What is the fast detection method of in-line aluminum Electrolytic capacitor?
Youchen Technology
Dongguan Youchen Electronic Technology Co., Ltd
Tel: 0769-85328400 8533526885336465
Fax: 0769-85308615
Email: admin@dgyouchen.com
Website: m.sh-hongtu.com
Address: Floor 3, No. 7 Xinfeng Road, Shangsha Fourth Industrial Zone, Chang'an Town, Dongguan City, Guangdong Province
Yue ICP Bei No. 13008404
All rights reserved:Dongguan Youchen Electronic Technology Co., Ltd
In-line aluminum electrolytic capacitor manufacturer, SMT aluminum electrolytic capacitor manufacturer, direct sales, brand selection, model selection, price
Follow us:

Do you need our help? Welcome to leave your email!
Subscription
18929295505  
2324774509
admin@dgyouchen.com
主站蜘蛛池模板: 国产在线观看www污污污| 亚洲色丰满少妇高潮18p| 色噜噜亚洲精品中文字幕| 狠狠色综合7777久夜色撩人| 一本色道久久综合狠狠躁篇| 国产内射爽爽大片视频社区在线| 国产v视频在线亚洲视频| 国产精品久久久久久久久免费| 国产午夜福利在线观看视频| 国产精品视频一区二区三区四| 国产免费看插插插视频| 亚洲av无码专区首页| 99riav国产精品视频| 伊人久久无码中文字幕| 国产精品久久久久乳精品爆| 国产精品三级av及在线观看| 亚洲国产成人精品无码区在线秒播| 欧美阿v高清资源在线| 国产精品成人99一区无码| 国产98色在线 | 日韩| 无码高潮少妇毛多水多水| 欧美不卡视频一区发布| 无码人妻精品一区二区三区蜜桃| 波多野结衣绝顶大高潮| 国产男女猛烈无遮挡免费视频| 日本丶国产丶欧美色综合| 18禁美女裸体网站无遮挡| 和黑人邻居中文字幕在线 | 熟妇人妻无码中文字幕老熟妇| 无码人妻丰满熟妇区bbbbxxxx| 亚洲av中文无码字幕色三| 99精品国产在热久久| 国产精品成人免费视频网站京东| 波多野结衣中文字幕久久| 精品日韩欧美一区二区在线播放| 国产精品免费视频网站| а√天堂8资源中文在线| yw尤物av无码国产在线观看| 啪啪无码人妻丰满熟妇| 中文字幕无码不卡免费视频| 四虎成人永久影院|