【应用】铝电解电容A704230/47用于工业电源/UPS，具有大容量，长寿命，宽温度范围等优势

时间： 2020-02-23 来源：世强

技术问答

工业电源和UPS通常对市电进行整流，功率因数校正，DC/DC及逆变等处理，输出单相，三相交流电，或者直流。为输出稳定的电压，降低电源纹波和噪声，在电源变换过程中都需要对电源滤波，使电源得到净化，更有利于设备供电品质的提高。

图1.UPS原理架构

如图1所示，一般中小型工业电源及UPS为开关电源，通常输入为单相220V/50Hz市电，因市电纹波，噪声及功率因数问题，通常在AC/DC变换的同时进行功率因数校正，然而通过DC/AC逆变和滤波输出频率，电压，纹波指标符合要求的220V/50Hz的高品质工业电源，在AC/DC、DC/DC及DC/AC过程中都会用到高耐压的大容量，大功率的铝电解电容。

图2. SNAPSIC系列铝电解电容在逆变电路母线电压滤波的应用

如图2所示，工业电源和UPS一般都有DC/AC逆变环节，经整流，功率因数校正后的直流电压一般较高，如单相220V/50Hz经整流后的最大直流电压可达311V，则母线最大直流电压可达311V，为逆变输出稳定，得到理想得输出电压，所以在逆变前保持母线电压得高质量，需对母线电压滤波，降低纹波。为保证电容的安全，需选择额定电压为400V-500V、电容范围100uF-470uF的电容。

本文主要推荐EXXELIA铝电解电容SNAPSIC系列产品，其中的A704230，470uF容值，额定电压450V，阻抗150mΩ；A704247的容值为470uF，额定电压为500V，阻抗250mΩ，非常适合用在这里。此外，这两款产品的直径35mm、高度为50mm，工作温度从-55°C~85°C，工作寿命为10 000 H / 85°C，寿命较长，使用稳定性较高。

该产品为直插焊接安装，安装时引脚具有自卡紧功能。在20°C下插脚和电容外壳之间的绝缘电阻为100 MΩ，自熄灭15 s（符合IEC 60 695-2-2）。该产品具有很强的抗冲击机械性能，通过严酷的冲击和振动试验。

综上，EXXELIA铝电解电容SNAPSIC系列的A704230、A704247具有大容量，长寿命，宽温度范围的特性，是工业电源/UPS滤波电容的优秀选择。

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目录- COMPANY PRESENTATION TECHNICAL INFORMATION CAPACITORS ACCESSORIES

型号- 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

选型指南 - KENDEIL - 2022/4/6 PDF 英文下载

新元电子携铝电解电容器、功率半导体器件等产品，亮相2023深圳电子元器件及物料采购展览会

日前，2023深圳电子元器件及物料采购展览会在深圳国际会展中心（宝安）盛大开幕！新元电子集中展示了铝电解电容器、金属化薄膜电容器、功率半导体器件和家电及工业控制器组件四大系列经典产品，呈现从上游基础电子器件到下游产品应用端的全产业链阵容。

原厂动态发布时间 : 2023-10-14

【选型】黑金刚引线型导电性高分子固体铝电解电容，寿命可达20000小时

NIPPON CHEMI-CON是铝电解电容器的顶级制造商，电解电容产量位居世界第一。其产品广泛应用于汽车电子，工业自动化，UPS，基站、电动汽车，光伏，充电站储能、通信基站设备，IoT，LED照明等。 NIPPON CHEMI-CON推出了PSC,PSE,PSF,PSG,PSJ,PSK系列微型铝电容。这6类电容都可在-55-105℃下稳定工作，电容公差为20%，稳定工作时间最高可达20000小时

器件选型发布时间 : 2018-07-28

RWX 系列螺丝端子型铝电解电容器

型号- RWF,RWX,RWH,RWX 系列,RWF系列

商品及供应商介绍 - NIPPON CHEMI-CON - 2023/4/4 PDF 中文下载查看更多版本

【产品】22µF~150000µF军用级焊针型铝电解电容器，10000小时超长寿命

Exxelia推出的SNAPSIC、SNAPSIC 4P、SNAPSIC 105 LP焊针型铝电解电容器，铝电介质，为用户提供多种不同表壳尺寸的选择，具有最长寿命以及最宽的工作温度范围，使这些产品非常适合铁路车辆和信号化设备，太阳能电池板逆变器或军用级电源。符合RoHS标准，是环境友好型器件，主要应用于储能、用于PC板安装、开关模式电源、脉冲电流等领域。

新产品发布时间 : 2019-01-05