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參數(shù)一：電容值

電容值C=Q/U。

要計算主板CPU供電部位對電容容量的需求，使用如下公式：

C = I/(∆V/∆t)

假如CPU的電流I為50A, ∆V=50mV時，∆t=10μS。則容量要求為C=10000μf。要得到理想的濾波效果的話，就要求要7顆1500μf的電容并聯(lián)使用。

參數(shù)二：耐壓值

耐壓值是表示電容＋/－極之間的壓差，如果出現(xiàn)過壓現(xiàn)象，電容就會處于擊穿狀態(tài)，漏電流增大，電容內(nèi)部發(fā)熱巨增，電容內(nèi)部的電解液會因高溫變成氣體致使電容內(nèi)部壓力增大。當(dāng)這個壓力超過電解電容的鋁外殼承受壓力的時候，電容就會發(fā)生。CPU的工作電壓一般在1～2V之間，電容耐壓能在4V以上就一般不會出問題，前提是電容極性不得插反！

RVT寬溫貼片鋁電解電容 貼片電解電容RVT廠家

鋁電解電容器使用說明 Notes for use of aluminum electronic capacitors
1.在電器回路不清楚或不明確線路之極性時，則建議使用無極性電解電容器。 1.lf circuit polarities are uncertain, Non-polar capacitors are recommended.
2.無極性(或二極性)電解電容器，可使用在極性轉(zhuǎn)換的回路或直流回路上。 2.Non-polar (or Bi-polar) capacitors can be used in polaritiy- changing circuits or DC circuits.
3.單極性電解電容器只能使用在直流電路上，其極性必需標(biāo)明在適當(dāng)之位置或在導(dǎo)針/端子之旁邊。 3.Polarized capacitors can be used in DC circuits only. Its polarity must be marked on the proper side of wire/terminal.
4.電解電容器應(yīng)儲存于低溫及干燥之處所。 4.Capacitors should be stored at a place of cool and dry.
5.電解電容器不可使用在周圍溫度超過標(biāo)示之使用溫度范圍。 5.Capacitors cannot be used in a place of ambient temperature exceeding its marked temperature.
6.電解電容器不適用于超過可容許紋波電流范圍之回路之上，假如有需要耐高溫紋波電流之電解電容器，請與我們洽商詳情 6.Capacitors cannot be used in a circuit where ripple current exceeds its allowed range. Please contact us if you have requirement for high temperature and ripple current capacitors
7.電解電容器經(jīng)長久儲存，如果漏電流超出規(guī)格值，使用前應(yīng)以額定電壓重新再老化30~60分鐘。 7.lf capacitors have been stored for a long time and its leakage current exceeds the specified value, please recharge for 30 to 60 minutes with rated voltage before using.
8.電解電容器一般品不適用于驟然間之充放電，如需使用在快速充放電的場合，請與我們洽商。 8.Capacitors cannot be used in a circuit charge or discharge, lf use in a circuit of sudden charge is required, please contact us.
9.使用于電解電容器之工作電壓，
不得超過額定電壓。 9.Application of wong voltage to capacitors should not exceed its rated voltage.
10.為了保護電解電容器之內(nèi)部結(jié)構(gòu)，其導(dǎo)針或端子不容許過分之拉力或承受的拉力，請參考JIS C 5102。 10.ln order to protect the internal structure, ydcon capacitors cannot be applied with over pull-force. Please refer to JIS C 5102.
11.電烙鐵應(yīng)與電容器塑膠套管保持適當(dāng)距離，以防止過熱造成塑膠套管破裂。 11. Soldering iron should be kept in a suitable distance from vinyl sleeve of capacitor in order to avoid sleeve crack.
12.電解電容器經(jīng)波峰焊錫之程序，其焊錫槽之溫度不容許超過260℃±10℃，時間10秒鐘。 12.For peak soldering , the solder temperature should not exceed 260℃±10℃ for 10 seconds.
13.為了保護塑膠套管、印刷標(biāo)示以及封口材料不被破壞，電解電容器不得以滷化化學(xué)藥品或類似溶劑，作為電解電容器洗滌之用，如三氯乙烯、二甲苯類或酮類等。 13.In order to protect PVC sleeve, printed marks and sealing material, capacitors can not be cleaned with  halogenated chemicals or similar solvent such as trichlorethylene, Xylene or Acetone, etc.
14.本公司一般規(guī)格之電解電容器，其品質(zhì)依照J(rèn)IS C 5141 標(biāo)準(zhǔn)。 14.Quality of our capacitors is in accordance with JIS C 5141.
15.本公司之信賴性試驗方法，JIS C 5102 標(biāo)準(zhǔn)。 15.Reliability test methods for our capacitors are
in accordance with JIS C 5102.
16.本公司在生產(chǎn)過程中不使用破壞臭氧層之藥品。 16.None of Ozone Depleting Chemicals (ODC) is used in any manufacturing processes of yadacon Company.

RVT寬溫貼片鋁電解電容 貼片電解電容RVT廠家