• 东莞市杰发电子有限公司,您身边最信赖的电解电容专业捕鱼游戏的合作伙伴!

  • 全国服务电话:4009-9494-66

在线留言 cn en

jefa-捕鱼app

全国服务热线
全国服务热线:
4009-9494-66
新闻中心
您现在的位置:电玩城捕鱼首页新闻中心常见问题

jefa-杰发电子 固态使用注意事项8

发布时间:2017-08-29   发布人:杰发编辑部

一、固态铝电容的特性:


the characteristics of conductive polymer aluminum solid capacitors

1、极性 polar:

固态铝电容器具有正负极之分,不能反接,否则易导致漏电流急剧增加、或者降低其使用寿命。

conductive polymer aluminum solid capacitors with positive and negative points, can not reverse, otherwise easily lead to the leakage current increases dramatically, or reduce its service life.


2、禁止用于以下电路 forbade to use following circuit:

(1)高阻抗电路

high impedance circuit

(2)耦合电路

coupling circuit

(3)时间常数电路

the time constant of the circuit


3、工作电压 working voltage:

(1)直流电压与纹波峰值电压的总和,不得超过额定工作电压

the sum of dc voltage and peak voltage, shall not exceed the rated working voltage

(2)当直流电压比较低的时候,反向纹波峰值电压不能超过额定工作电压的 10%

when dc voltage is low, the reverse ripple peak voltage should not exceed the rated working voltage of 10%

(3)对于25v以上产品,当环境温度超过85℃时,请降压使用固态铝电容 ;温度每上升10℃,施加于产品上的电压请下降10%

for more than 25v products, when the environment temperature is over 85 ℃, please reduce the use of voltage ; temperature rise by 10 ℃, the voltage is applied to the product. please drop 10%


4、瞬时充放电 instantaneous discharge:

瞬时充放电可能导致固态铝电容短路或漏电流增大,因此在以下情形需设计保护电路:

the instantaneous discharge may result in solid aluminum capacitor short circuit or leakage current increases,so in the following circumstances required the protection circuit design:

(1)冲击电流大于10a

the impact of current greater than 10a

(2)冲击电流大于10倍允许纹波电流值

the impact of current is more than 10 times the allowable ripple current value

(3)在测试产品漏电流时,请设置一个1kω的保护电阻

when test the leakage current of product, please protect the resistance to set a 1k.

高分子固态电容器 conductive polymer aluminum solid capacitors



5、常见的失效模式 the common failure mode :(1)偶然失效 random failure:

主要由电路的短路导致,当短路电路中的电流超过1a,电容内部温度将会上升,内部压力增大封口橡胶将会凸起甚至开启,电容会因此释放出有害气体,此时需立刻断开电路并离开这个场合另外还有超电压使用、超高温使用、超额定纹波电流使用,都会导致产品提前失效甚至短路。

mainly caused by the short circuit, when the current short circuit in more than 1a, the internal temperature will increase the internal pressure increases, the capacitance, sealing rubber will be raised even opened, capacitor will release harmful gases, at this time should immediately disconnect the circuit and leave this place. in addition, the use of high voltage using high temperature,high rated ripple current use, will lead to product failure ahead even short circuit。

(2)寿命失效 life failure:

经过长时间使用后,固态铝电容的特性会发生衰减,例如容量下降、esr上升等当使用时间超过额定寿命,电容的特性将劣化,可能导致电解质绝缘形成开路。

after a long time after use, characteristics of capacitor will decay, such as capacity decreased, esr increased, when the time exceeds the rated life, capacitance will deteriorate, may lead to electrolyte insulation open。

6、电容寿命估算 capacitor life estimation:

t0 - tx

l=l0×10 20

(1)l:某温度下的预期寿命(h)

l:at a certain temperature life expectancy(h)

(2)l0:额定寿命(h)

l0:rated life(h)

(3)t0:最高额定温度 (℃)

t0:the maximum rated temperature (℃)

(4)tx:实际环境温度 (℃)

tx:the actual environment temperature ( ℃)

7、固态铝电容的优越性 the superiority of the conductive polymer aluminum solid capacitor:

(1)低等效串联电阻 = 降低温度,稳定

low equivalent series resistance = lower temperature, stability

(2)耐高纹波电流 = cpu,memory,pci express电源模组设计的最佳选择

high ripple current = cpu, memory, pci best choice express power module design

(3)高低温度变化下依然稳定

high and low temperature changes remains stable

(4)高可靠度

high reliability

(5)较长的寿命

a longer life

(6)不会漏液、爆浆、燃烧

no leakage, explosion, burning

高分子固态电容器 conductive polymer aluminum solid capacitors



二、特别提醒 special remind:1、漏电流 leakage current:
(1)焊接热、运输途中的机械应力,都可能导致电容的漏电流增大

mechanical welding heat, transport stress, may cause the leakage current of the capacitor.

(2)但是,给产品施加不超过额定工作电压的直流电压时,漏电流会逐渐降低

however, applying a dc voltage does not exceed the rated working voltage to the product, the leakage.

(3)在不超过额定工作电压、额定上限温度的前提下,施加电压越高、环境温度越高,漏电流下降速度越快

current will decrease, on the premise of not more than the rated voltage, rated maximum temperature, with the increase of applied voltage, the higher the ambient temperature, the leakage current decreases faster.

2、固态铝电容的绝缘性 insulation of conductive polymer aluminum solid capacitors:

(1)固态铝电容外的绝缘镀膜并不是绝对绝缘的,另外铝壳与负极引出线之间不绝缘

conductive polymer aluminum solid capacitors insulating coating is not insulated completely, the aluminum shell and the negative lead wire not insulated .

(2)安装的时候,请务必将铝壳、正负导针及pc板印刷图完全隔离开

when installing, please be sure to aluminum shell, positive and negative lead wire, pcb board completely separate.

3、工作环境的限制 working conditions limit:

(1)有水、盐水、油可以直接滴落的地方,以及容易发生收缩的电路板,禁止使用

water, salt water, oil can be directly from the local, as well as prone to circuit board contraction, the prohibition of the use of.

(2)有害气体(h2s、硫酸、硝酸、氨气、盐酸等)聚集的场合,禁止使用

harmful gases (h2s, sulfuric acid, nitric acid, ammonia, hydrochloric acid) aggregation of the occasion, the prohibition of the use of .

(3)紫外线、放射性射线、臭氧等辐射的场合,禁止使用

ultraviolet radiation, ozone, radiation such occasions, the prohibition of the use of.

4、pcb板设计 pcb board design:

(1)不要将固态铝电容安装于热源组件周围或其上面

don't be conductive polymer aluminum solid capacitors mounted on a heat source component around or above it.

(2)pcb板上的安装孔位,直径和间距要与电容导针的直径和针距相匹配

the pcb board installation hole, diameter and spacing to diameter and capacitance guide needle and needle distance matching.

5、并联电路 parallel circuit:

当固态铝电容与另一液态铝电容并联时,由于固态电容具有低得多的esr值因此,可能会有很大的纹波电流施加在固态电容上,这种情况下请谨慎选择电容规格。

when the conductive polymer aluminum solid capacitor in parallel with another liquid aluminum capacitors, because the solid capacitor has a much lower esr value, therefore, may have a ripple current great applied in solid capacitors, this case please choose carefully capacitor specifications.


shape cutting & forming methods 6.3φ 10φ 13φ 16φ 18φ 22φ
f 1.5 2 2.5 3.5 5 5 7.5 7.5 10
a lead cut only(切直脚) h 5 5 5 5 5 5 5 5 5
d 0.45 0.5 0.5 0.6 0.6 0.6 0.8 0.8 0.8
f 5 5 5 5
h 4 5 5 5
b lead cut and form(成型切直脚) d 0.45 0.5 0.5 0.6
f 5 5 5 5
h1 4 5 5 5
c lead cut,crimp and form h2 1.8 1.8 1.8 1.8
(成型切波浪脚) d 0.45 0.5 0.5 0.6
f 5 5 7.5 7.5 10
h1 5 5 5 5 5
d lead cut and crimp(切波浪脚) h2 1.8 1.8 1.8 1.8 1.8
d 0.6 0.6 0.8 0.8 0.8
facing negative mark lead cutting and f 3.5 5 5 7.5 7.5
e bending 900 turn right (br). h 9
(面向负极线,向右90度折弯后切脚) d 0.6 0.6 0.6 0.8 0.8
facing negative mark lead cutting and f 3.5 5 5 7.5 7.5
f bending 900 turn left (bl). h 9
(面向负极线,向左90度折弯后切脚) d 0.6 0.6 0.6 0.8 0.8



下一条 : 没有更多...

4009-9494-66

地址:中国广东省东莞市塘厦镇石马社区明珠街11号杰发高新科技园

邮箱:[email protected]

电玩城捕鱼 copyright © 2017 东莞市杰发电子有限公司捕鱼游戏的版权所有

手机站二维码

扫一扫关注杰发公众号