WMSIC Electronic Components

ROQANG KM1E470M0511

ModelKM1E470M0511
Package5x11mm
BrandROQANG
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
ROQANG KM1E470M0511
Type
ROQANG
Minimum package
1000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
ROQANG
Electronic Component
KM1E470M0511
Electronic Component
1
Electronic Component
47uF
Package
5x11mm
Electronic Component
Through-hole Aluminum Electrolytic Capacitor
Electronic Component
±20%
Electronic Component
0.38g
Pitch
2mm
Electronic Component
1
Electronic Component
BM0265022579
Electronic Component
2000hrs@105℃
Operating Temperature
40℃~+105℃
Current
97mA@120kHz
Voltage
25V

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

KM1E470M0511 产品概述

KM1E470M0511(品牌:ROQANG 容强)是一款径向直插铝电解电容器,额定容值 47 μF,额定电压 25 V,适用于对体积和安装空间有严格限制的通用直流滤波与去耦场合。该器件以小型化尺寸与中等纹波能力为特点,适合消费电子、工业控制及电源模块中的局部滤波与储能用途。

一、主要参数一览

  • 品名:KM1E470M0511(ROQANG / 容强)
  • 容量:47 μF
  • 容差:±20%(M)
  • 额定电压:25 V
  • 纹波电流:97 mA @ 120 kHz
  • 尺寸(电容体):直径 5 mm × 长度 11 mm(D5 × L11 mm)
  • 引脚间距:2.0 mm(径向引线)
  • 封装形态:径向插装(插件),适用于通孔安装
  • 工作温度:-40 ℃ ~ +105 ℃
  • 使用寿命:2000 小时(在 105 ℃ 条件下)
  • 极性提示:为有极性铝电解电容(请按极性正确焊装)

二、结构与机械特性

KM1E470M0511 为典型的铝电解直插元件,外观为小直径圆柱体,底部带径向引线,适配标准通孔 PCB 布局。引脚间距为 2 mm,便于高密度插件布局。电容体小巧(5×11 mm),适合空间受限的电路板与紧凑电源模块。电容外壳通常有极性标识(阴极一侧带条纹),并设有爆裂防护(泄压口)。

建议孔径与安装:

  • 推荐 PCB 孔径:φ0.8–1.0 mm(视引脚直径而定)
  • 插装方向:垂直插装(径向),注意避免强力弯折引脚

三、电气性能与应用建议

  • 典型用途:电源滤波、去耦、储能、旁路与低频耦合电路。适合对体积有要求的板级滤波场合。
  • 纹波处理能力:标称 97 mA @ 120 kHz。对于高频去耦,应与低 ESR/低 ESL 的薄膜电容并联,以在宽频带内获得良好滤波效果。
  • 纹波电压估算(理想电容):Vr(pp) ≈ Ir / (2π f C)。代入 Ir=0.097 A,f=120 kHz,C=47 μF,得到 Vr ≈ 2.7 mV(仅为理想无 ESR 情况下的理论值)。实际电路中,ESR 对纹波电压贡献不可忽视,实际纹波电压应按 Vr ≈ Ir·ESR + Ir/(2πfC) 估算。

四、可靠性与使用寿命

该系列在 105 ℃ 下标称寿命为 2000 小时,适用于中等寿命要求的产品。若需长期可靠运行,应注意以下降额与热管理建议:

  • 电压降额:建议在多数长期工作场合将实际工作电压降至额定电压的 60%~80%(具体取值根据系统要求与环境温度决定),以延长寿命。
  • 温度控制:尽量降低周围环境温度和发热器件的辐射,温度每降低 10 ℃ 对电解电容寿命均有明显改善。
  • 纹波与寿命:高纹波电流会显著缩短电容寿命,若电路纹波较高,应选用更高纹波等级或并联更高频特性的电容。

五、焊接与存储注意事项

  • 焊接方式:支持手工焊接与波峰焊,但应避免过高的局部温度和长时间加热。焊接时应遵循厂商的温度坡度与时间限制(若无厂方明确说明,控制焊接峰值温度与持续时间,避免超过电容耐受)。
  • 方向与极性:安装时严格区分正负极,避免反接;电容上有极性标识,负极通常带条纹。
  • 存储条件:建议干燥、阴凉、避免强光与高湿环境;若长期存储,应在保质期内使用,并在使用前进行耐压与容量检查(如长期暴露于极端环境,应做额外电气测试)。

六、选型与替代建议

  • 若电路需要更长寿命或更高温度耐受,考虑选用寿命更高(如 4000–5000 小时 @105 ℃)或固体电解/聚合物电容。
  • 若需更低 ESR、更大纹波承受能力,可选用表贴或更大尺寸的铝电解或钽电容、固态电解电容作为替代。
  • 在高频去耦场合,建议并联陶瓷或薄膜电容以覆盖高频响应。

KM1E470M0511 以其小型化、通孔插件与中等纹波能力,适合体积受限的常规电源滤波与去耦场景。选型时请结合实际工作电压、纹波电流与环境温度进行综合评估,必要时与厂商确认更详细的电气与焊接规格。

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