WMSIC Electronic Components

ROQANG KM1E220M0407

ModelKM1E220M0407
Package4x7mm
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 KM1E220M0407
Type
ROQANG
Minimum package
1000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
ROQANG
Electronic Component
KM1E220M0407
Electronic Component
1
Electronic Component
22uF
Package
4x7mm
Electronic Component
Through-hole Aluminum Electrolytic Capacitor
Electronic Component
±20%
Electronic Component
0.211g
Electronic Component
1
Electronic Component
BM0264860774
Electronic Component
2000hrs@105℃
Operating Temperature
40℃~+105℃
Current
48mA@120kHz
Voltage
25V
Capacitor
4mm

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

KM1E220M0407 产品概述

KM1E220M0407 是 ROQANG(容强)推出的一款直插(插件)铝电解电容器,具有小型化外形与适用于低电流、低纹波应用的特性。产品以径向引线方式封装,电容体尺寸为直径4mm、长度7mm(D4×L7mm),适合空间受限的插装电路板设计。下面从性能特点、主要参数、典型应用、使用与注意事项等方面对该型号作简明介绍,便于工程选型与可靠性评估。

一、主要性能与规格概览

  • 容值:22 μF
  • 容差:±20%
  • 额定电压:25 V DC
  • 纹波电流:48 mA @ 120 kHz(额定频率下的允许纹波电流)
  • 工作温度范围:-40 ℃ ~ +105 ℃
  • 工作寿命:2000 小时 @ 105 ℃
  • 封装/尺寸:径向引线(直插)、电容体直径4 mm,长度7 mm(D4×L7 mm)
  • 品牌:ROQANG(容强)

二、产品特点(要点)

  • 小型化封装:4×7 mm 的紧凑体积,适合高密度插装板设计,特别适用于体积受限的便携或嵌入式设备。
  • 合理的电压/容量组合:22 μF/25 V 适用于常见的中低电压直流滤波与旁路场景。
  • 低纹波场合适用:在 120 kHz 工作频率下标称纹波电流为 48 mA,适合低至中等纹波电流的开关电源二次侧滤波或直流稳压输出旁路。
  • 宽工作温度:支持 -40 ℃ 至 +105 ℃,可用于较广的环境温度范围。
  • 插件便于维修与替换:径向引线便于手工焊接和后期更换,适合原型与维修友好型产品。

三、典型应用场景

  • 开关电源二次侧的输出滤波(低功率或低纹波场合)。
  • 模拟电路与信号耦合/旁路(注意极性与容差对低频性能的影响)。
  • 便携式设备与物联网终端的电源去耦与储能补偿。
  • 仪表、传感器前端与低功率放大器的电源旁路与滤波。
    注:由于纹波电流与寿命指标有限,不建议用于高纹波或高电流的主滤波电容场合。

四、使用与设计注意事项

  • 极性标识:本类铝电解电容为极性器件,安装时务必确认正负极,避免反接导致电容损坏或爆裂。
  • 电压和温度降额:为延长寿命与可靠性,建议长期工作电压低于额定电压(常见工程实践为额定电压的60%~80%),并尽量在较低工作温度下使用。
  • 纹波电流匹配:设计时应核算实际应用中的交流纹波电流(频率与幅值),确保不超过 48 mA 的额定纹波电流,否则会引起电容内部升温、加速老化。若纹波较大,可并联多个电容器以分担纹波或选用更高纹波能力的型号。
  • 并联与等效电容:并联可线性增加电容值并降低等效串联电阻(ESR),但并联时应注意引线长度与布局,避免寄生感抗引入振荡或降低效果。
  • 温升与寿命:电容寿命以 105 ℃ 下 2000 小时为基准,实际寿命受工作温度、纹波电流(导致的自热)及工作电压影响。经验法则为温度每下降 10 ℃,寿命可显著延长,但具体倍增关系需依厂方曲线评估。

五、存储与焊接建议

  • 存储环境:避免高温、高湿和酸性、碱性气体环境,建议在干燥环境下密封保存,长期存放前可参考厂方保存期与再形成建议(如需)。
  • 焊接:本产品为直插式,适合手工焊接或波峰焊(遵循厂方的焊接温度和时间限制)。焊接过程中避免对电容本体施加机械应力,焊后应待冷却再进行修整或测试。

六、选型与替代建议

  • 若应用中存在更高的纹波电流或更长寿命需求,应优先考虑纹波电流额定值更高或寿命等级更高的铝电解型号,或改用固态电解、电容并联或升容以满足要求。
  • 对于对容值公差或温度稳定性要求更高的场合,可考虑薄膜电容或钽电容等替代方案,但需综合体积、成本与极性限制。

KM1E220M0407(ROQANG)适用于对体积、成本和常规性能有平衡要求的低功率滤波与去耦场合。选型时请结合实际电流纹波、工作温度、寿命需求与电路布局进行综合评估,必要时与供应商或技术支持确认详细的热-寿命曲线与可靠性数据。

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