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BOURNS CM322522-100KL
Configuration
1 options
Configuration
Date code within 2 years
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- BOURNS CM322522-100KL
- Type
- BOURNS
- Minimum package
- 2000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- BOURNS
- Electronic Component
- CM322522-100KL
- Electronic Component
- 1
- Package
- 1210
- Type
- Magnetic Display Inductor
- Electronic Component
- Power Inductor
- Electronic Component
- ±10%
- Electronic Component
- 0.08g
- Inductor
- 10uH
- Electronic Component
- 1
- Electronic Component
- BM0264532933
- Current
- 140mA
- Resistor(DCR)
- 2.1Ω
- Electronic Component
- Electronic Component
- Electronic Component
- 2000
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
CM322522-100KL 产品概述
一、产品简介
CM322522-100KL 是 BOURNS 推出的磁胶屏蔽型功率电感，额定电感值为 10 μH，公差 ±10%，额定直流电流 140 mA，直流电阻（DCR）为 2.1 Ω，封装为常用贴片 1210（约 3.2 × 2.5 mm）。该器件以磁胶（molded magnetic）封装与屏蔽结构为特点，适用于空间受限且对电磁兼容有一定要求的低功率滤波与能量储存场合。
二、主要特性
- 电感值：10 μH，公差 ±10%
- 额定直流电流：140 mA（连续工作）
- 直流电阻（DCR）：2.1 Ω
- 类型：磁胶屏蔽（molded/shielded）功率电感
- 封装：1210（SMD，约 3.2 × 2.5 mm）
- 品牌：BOURNS
三、性能解读与工程意义
- DCR 与功耗：在额定电流 140 mA 条件下，铜损约为 P = I^2·R = 0.14^2 × 2.1 ≈ 0.041 W（约 41 mW），对系统总体效率的影响较小，但应考虑到器件在实际工作温度下的 DCR 可能随温度上升而增加。
- 精度与稳定性：±10% 的电感公差适合用于对精度要求不极高的滤波与去耦场合；磁胶封装能提高机械可靠性并在一定程度上稳定电感随应力变化的特性。
- 屏蔽特性：屏蔽设计有利于降低对周围电路的磁场干扰，便于在密集布线的消费电子或工业控制板上应用。
四、典型应用场景
- 开关电源（低电流 DC-DC 降压/升压）中的能量储存与输出滤波
- 电源输入端 EMI/射频干扰抑制与差模/共模滤波（配合电容使用）
- 可穿戴设备、传感器节点、小型通信终端及其他电流预算受限的便携式设备
- LED 驱动与小功率电源模块（需评估电流与效率匹配）
五、选型与设计建议
- 电流裕量：建议在最大工作电流下留有 20–30% 的裕量以延长寿命并避免发生磁芯饱和或发热过大。
- 热管理：虽然在额定电流下损耗小，但若工作环境温度较高或并联/串联布局密集，应关注器件温升与周边元件间隔。
- 与 DCR 的权衡：2.1 Ω 的 DCR 对于小电流滤波器影响有限，但若目标为高效率能量传输，应考虑更低 DCR 的电感替代品。
- 封装与贴装：1210 尺寸便于自动贴装与回流焊工艺，设计 PCB 时按厂商推荐焊盘与热扩散要求布局，以保证可靠焊接与散热。
六、结论
CM322522-100KL 是一款面向低功率应用的屏蔽型磁胶功率电感，凭借 10 μH 电感值与良好的屏蔽、1210 小型封装，适合用于便携设备与低电流电源滤波场景。设计时需结合系统电流、效率与热环境综合评估，确保电感的 DCR 与额定电流能满足目标电路的性能与可靠性要求。若需更低 DCR 或更高电流能力，可考虑相近规格的替代型号或与供应商确认更多电气/热特性数据。
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