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

What are the meanings of different parameters of long-life Electrolytic capacitor

2022-10-18

Choose the right oneLong life Electrolytic capacitorThe voltage, capacity, and other parameters of the Electrolytic capacitor should be selected according to the use scenario. What does the different parameters of the long-life Electrolytic capacitor mean?


(1) Rated voltage VR: It is designed when designing a capacitor and represents the DC voltage on the capacitor. For aluminum Electrolytic capacitor, the rated voltage ≤ 100 V is usually called low-voltage capacitance, while the rated voltage>100 V is called (medium) high-voltage capacitance. The commonly used rated voltages are 6.3V, 10V, 16V, 25V, 50V, 63V, 100V, 250V, 400V, 450V, 500V, 630V, etc.


(2) Working voltage VOP: The capacitor can continuously operate within the rated working range at the rated voltage (including some superimposed components). The allowable continuous working voltage range is between 0V and rated voltage. In a short period of time, due to the presence of an air oxide layer on the cathode aluminum foil, the capacitor can withstand a reverse voltage of no more than 1.5 V.


(3) Surge voltage VS: refers to the maximum voltage that can be applied to a capacitor in a short period of time, such as 5 times within an hour, each time for one minute. IEC 60384-4 defines surge voltage as follows: if VR ≤ 315 V, VS=1.15VR; if VR>315 V, VS=1.10VR.


(4) Nameplate capacity CR: is the AC capacitance value designed and marked by the capacitance. CR is measured according to the special standards specified in (IEC 60384-1 and IEC 60384-4). For Electrolytic capacitor, the general test conditions are twice the power frequency (100HZ or 120HZ) and room temperature. In addition, the capacity error is that the actual capacity of the capacitance leaves the distribution range of Nameplate capacity, which is generally marked on the body. For AL electrolysis, it is basically marked as M (± 20%).


(5) Usage temperature range: refers to the temperature range within which capacitors can operate stably. Currently, the common low temperature limit values are generally -55 ℃, -40 ℃, -25 ℃, and the high temperature limit values are generally 85 ℃, 105 ℃, 125 ℃, 130 ℃, etc.


(6) Service life: service life (also defined as service life and operating life) is defined as the achievable life of the capacitor that does not exceed the specified Failure rate. The service life is obtained by applying experience and accelerated aging tests. If the load is below the rated value, the service life can be extended (such as low working voltage, current, and environmental temperature), and appropriate heat dissipation measures can also extend the service life.


(7) Dissipation factor tan δ: It is the ratio of Equivalent series resistance to the capacitive reactance component in the equivalent series line, or the ratio of active power (dissipated power) to reactive power under sinusoidal voltage.


(8) Equivalent series inductance ESL: the self inductance or Equivalent series inductance is derived from the internal design of terminal blocks and capacitors.


(9) Equivalent series resistance ESR: refers to the resistive component of the equivalent series circuit. The ESR value is related to frequency, temperature, and dissipation factor.


(10) Impedance Z: refers to the total reactance value of the equivalent series line, which only includes the capacitive reactance part of the capacity CS; Dielectric loss and Ohmic impedance ESR of electrolyte and terminal blocks; The inductive reactance ESL generated by capacitor winding and wiring terminals. ESL only depends on frequency, while capacitive reactance and resistive reactance depend on frequency and temperature.


(11) Leakage current Ileak: due to the special characteristics of aluminum Electrolytic capacitor, its aluminum oxide layer also acts as an insulation layer. After the DC voltage is applied for a long time, a small current will continue to flow through the capacitor. This current is called leakage current. A small leakage current means that the insulation layer of the capacitor is well designed.


(12) Ripple current: The RMS value is used to indicate the AC current flowing through the device, which is caused by jumping and surge voltage. The maximum allowable ripple current is determined by environmental temperature, capacitance surface area (heat dissipation area), dissipation factor, and AC frequency. Due to the decisive effect of thermal stress on the lifespan of capacitors, the heat generated by ripple currents is an important factor affecting their service life.

Previous Page:How to Measure the Capacity and Value of Chip Capacitor Electrolysis

Next Page:Chip capacitor resistor
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: 亚洲日韩精品国产一区二区三区| 天天天天躁天天爱天天碰2018| 亚洲 卡通 欧美 制服 中文| 无码一区二区波多野结衣播放搜索| 久久99精品国产99久久| 脱了美女内裤猛烈进入| 亚洲av无码国产精品永久一区 | 国产男女性潮高清免费网站| 日韩性爱视频| 高清无码视频直接看| 人妻少妇精品久久久久久| 国产男女无遮挡猛进猛出| 亚洲av中文无码乱人伦在线咪咕| 欧美怡春院一区二区三区| 亚洲中文无码永久免费| 一本大道无码人妻精品专区| 国产办公室沙发系列高清| 熟妇人妻va精品中文字幕| 五月丁香综合激情六月久久 | 国产成人小视频| 亚洲乱码一区av春药高潮| 日日噜噜夜夜狠狠久久无码区| 永久免费无码日韩视频| 噜噜噜噜私人影院| 真人无码国产作爱免费视频| 国产免费丝袜调教视频| 国产gay男性奴视频网站| 亚洲国产精品美女久久久久| 亚洲天堂2017无码| 国产精品一区二区av交换| 亚洲av成人片色在线观看| 业余 自由 性别 成熟偷窥| 国产精品视频色拍拍| 一本一道波多野结衣av黑人| 亚洲丁香五月天缴情综合| 亚洲av无码成人网站久久精品大| 亚洲 都市 校园 激情 另类| 精品亚洲一区二区三区在线观看| 亚洲国产成人一区二区三区| 婷婷五月综合缴情在线视频| 蜜臀久久99精品久久久久久|