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ST CS1E221M-CRF10 aluminum electrolytic capacitor
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- ST CS1E221M-CRF10
- Type
- ST
- Minimum package
- 500 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- ST
- Electronic Component
- CS1E221M-CRF10
- Electronic Component
- 1
- Electronic Component
- 220uF
- Package
- SMD,D8xL10.5mm
- Electronic Component
- SMD Aluminum Electrolytic Capacitor
- Electronic Component
- ±20%
- Electronic Component
- 1.268g
- Electronic Component
- 1
- Electronic Component
- BM0230826361
- Electronic Component
- 2000hrs@105℃
- Operating Temperature
- 40℃~+105℃
- Voltage
- 25V
- Capacitor
- 8mm
- Capacitor
- 10.5mm
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
CS1E221M-CRF10 产品概述
一、主要参数概述
CS1E221M-CRF10 为贴片型铝电解电容，额定容量 220µF，容量精度 ±20%，额定电压 25V。电容体外形尺寸为直径 8mm × 长度 10.5mm（封装标识 D8×L10.5mm），封装形式为 SMD。工作温度范围 -40℃ 至 +105℃，在 +105℃ 条件下额定寿命为 2000 小时。品牌：ST（先科）。
二、产品特点
- 大容值与小体积：220µF 的电容量配合直径 8mm 的紧凑外形，适合对体积与电容量均有要求的电路设计。
- 宽温度工作范围：可在 -40℃ 至 +105℃ 环境下正常工作，适应性较强。
- 高温寿命保证：在 105℃ 下设计寿命为 2000 小时，可满足多数商业与工业应用的可靠性要求。
- 表面贴装便于自动化装配：SMD 封装适配现代 SMT 生产线，有利于批量生产与高产能装配。
- 极性器件：作为铝电解电容，具有极性，请在电路设计与安装时注意正负极方向。
三、典型应用场景
- 开关电源输入/输出滤波与能量储存。
- DC-DC 转换器的输出去耦与稳压回路。
- 工业与消费类电子的电源旁路与电压平滑。
- 通信设备、音视频设备及其他对体积与容量有要求的系统电源部分。
（若用于要求更高的汽车或军工环境，请结合可靠性资格与规范进行额外评估。）
四、使用与选型建议
- 电压降额：为延长使用寿命与提高可靠性，建议在设计中对额定电压适当降额使用（例如将工作电压控制在额定值的 60%–80% 范围内，根据具体应用环境和寿命要求调整）。
- 温度影响：电容的寿命与额定容量会随温度升高而下降，若长期在高温环境下工作，应考虑增加裕量或选择更高温等级产品。
- 极性与防反接：电解电容为极性器件，禁止反向施加电压；在可能发生反向电压的回路中应采取保护措施。
- 焊接工艺：适配表面贴装工艺。具体回流焊温度曲线及工艺参数请参考厂方推荐的焊接规范，以避免因温度剖面不当导致性能下降或寿命缩短。
五、包装、存储与可靠性
- 存储环境建议干燥、常温（低于 40℃）并避免阳光直射与潮湿。长期存放后如发现引线或封装潮气问题，建议按制造商指南进行预烘干处理后再进行回流焊接。
- 可靠性指标以 105℃、2000 小时为基准寿命，实际寿命会受工作电压、纹波电流、环境温度和机械应力等因素影响，选型时应综合评估工作条件与寿命要求。
六、注意事项
- 在布局时为散热与散热路径预留足够空间，避免长时间高纹波下局部过热。
- 在并联使用时应保证电容参数一致以避免电流分配不均。
- 对关键应用，如冗余电源或高可靠性系统，建议进行样品验证与寿命试验。
如需器件封装图、焊接曲线、纹波电流、等效串联电阻（ESR）等详细电气及机械参数，请联系供应商或参考厂家完整规格书以获取准确数据。
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