WMSIC Electronic Components

ST CS1E470M-CRE54 aluminum electrolytic capacitor

ModelCS1E470M-CRE54
PackageSMD,D6.3xL5.4mm
BrandST
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
ST CS1E470M-CRE54
Type
ST
Minimum package
1000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
ST
Electronic Component
CS1E470M-CRE54
Electronic Component
1
Electronic Component
47uF
Package
SMD,D6.3xL5.4mm
Electronic Component
SMD Aluminum Electrolytic Capacitor
Electronic Component
±20%
Electronic Component
0.498g
Electronic Component
1
Electronic Component
BM0230826363
Electronic Component
1000hrs@105℃
Operating Temperature
40℃~+105℃
Voltage
25V
Capacitor
6.3mm
Capacitor
5.4mm

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

CS1E470M-CRE54 产品概述

CS1E470M-CRE54 为 ST(先科)系列贴片型铝电解电容,额定电容值 47 μF,额定电压 25 V,适用于中小功率电子电路中的整流滤波、去耦和平滑电源纹波等场合。该型号采用 SMD 封装(D6.3 × L5.4 mm),电容体直径 6.3 mm、长度 5.4 mm,温度范围宽(-40 ℃ 至 +105 ℃),并在 105 ℃ 下具有 1000 小时的工作寿命。典型容值公差为 ±20%,符合铝电解电容在体积/容量比上的优势,适合对体积、焊接可靠性和成本敏感的量产电子产品。

一、主要特性

  • 容值:47 μF,公差 ±20%(E 型容差)
  • 额定电压:25 V
  • 封装:SMD,D6.3 × L5.4 mm(贴片型,适合回流焊工艺)
  • 工作温度:-40 ℃ ~ +105 ℃
  • 工作寿命:1000 小时 @ 105 ℃
  • 极性元件(铝电解电容应正确区分正负极并按极性安装)
  • 品牌:ST(先科)

二、典型应用场景

  • 开关电源(SMPS)输入/输出的滤波与去耦
  • 稳压电源的平滑电容与后端滤波
  • 单片机及数字系统的电源去耦、旁路
  • 音频放大器电源滤波(作为电源滤波/回路储能用)
  • 工业控制、消费电子、通信设备等中小功率电源模块

三、性能与可靠性说明

  • 工作寿命标定为 1000 小时 @ 105 ℃,表示在该温度条件下长期连续工作可达到该寿命等级;在实际应用中,若工作环境温度低于 105 ℃,元件寿命会明显延长(工程上常用的经验法则为温度每下降约 10 ℃ 寿命有显著增加,但具体寿命需参考厂方寿命曲线或老化数据)。
  • 电容为铝电解结构,容值随温度变化及长期使用会有一定漂移,设计时应考虑 ±20% 的容差及老化影响。
  • 由于为电解电容,具有极性,反接或超过允许电压会导致性能损坏或安全风险,使用时须保证极性正确并对瞬态过电压采取保护措施。

四、选型建议与降额策略

  • 电压降额:为延长寿命并提高可靠性,建议在高可靠性或高温工况下对额定电压进行适当降额(常见做法为工作电压不超过额定电压的 60%~80%,具体降额比例依据系统要求和环境温度确定)。
  • 容值裕量:若电路对纹波抑制或保持时间有严格要求,建议选用容值更大一个档位或并联多只电容以降低等效串联电阻(ESR)和提高纹波承受能力(并联时注意总体容差与等效 ESR)。
  • 温度影响:在高温环境(靠近或达到 105 ℃)时,应优先考虑更高寿命等级或温度额定更高的电容以保证长期可靠性。

五、封装、焊接与装配注意事项

  • 封装为贴片型,适配常规 SMT 回流焊流程。具体回流焊曲线应遵循厂方推荐,以避免过高的峰值温度或过长的高温滞留导致电容性能退化。
  • 焊盘与丝印应符合厂方的推荐焊盘布局,以保证良好的焊接强度与热传导路径,减少机械应力对电容封装的影响。
  • 安装时避免对电容体施加侧向或轴向的机械应力,回流后建议在必要位置加固(例如在振动环境下使用环氧点胶加固)。
  • 储存与湿度敏感性:建议按照厂方储存建议存放于干燥环境,避免长时间受潮、受污染或极端温度循环。

六、检验与质量监控

  • 采购或投入批量生产前,应向供应商索取并审核产品的规格书(包括电气特性、寿命曲线、耐压、漏电流、ESR 和纹波电流等关键参数)及相关质量认证报告。
  • 在关键产品或高可靠性应用中,建议做批量抽样老化测试与高温运行验证,验证在目标使用条件下的漏电、容值变化和寿命符合设计要求。

总结:CS1E470M-CRE54 是一款规格明确、体积小巧的贴片铝电解电容,适用于多种中小功率电源滤波与去耦场合。合理的电压降额、良好的焊接工艺与恰当的热机械设计将有助于发挥该型号电容的稳定性能与使用寿命。如需更详细的电气参数(如 ESR、漏电流、允许纹波电流)和推荐回流曲线,请向厂方索取完整规格书以作进一步验证与设计参考。

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