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cjiang FNR4030S221MT
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- cjiang FNR4030S221MT
- Type
- CJIANG
- Minimum package
- 2000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- CJIANG
- Electronic Component
- FNR4030S221MT
- Electronic Component
- 1
- Package
- SMD,4x4mm
- Type
- Magnetic Display Inductor
- Electronic Component
- Power Inductor
- Electronic Component
- ±20%
- Electronic Component
- 0.338g
- Inductor
- 220uH
- Electronic Component
- 1
- Electronic Component
- BM0233323822
- Current
- 400mA
- Resistor(DCR)
- 3.25Ω
- 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.
FNR4030S221MT — 220µH 磁胶屏蔽功率电感产品概述
一、产品概述
FNR4030S221MT 是长江微电（cjiang）推出的一款表面贴装功率电感，典型电感值为 220µH，公差 ±20%。器件采用磁胶屏蔽结构和 4×4mm 紧凑外形，专为对体积与电流承载有中等要求的电源滤波、去耦及储能应用设计。其结构兼顾了磁通泄露控制与耐饱和性能，适合移动设备、通信模块、工业控制及各类消费电子的电源前端或次级滤波电路。
二、主要电气参数
- 电感值：220µH，允许偏差 ±20%
- 额定电流：400mA（持续工作条件下不超过此值以保证温升与参数稳定）
- 饱和电流（Isat）：500mA（在该电流下电感值下降至规定比例）
- 直流电阻（DCR）：约 3.25Ω
- 封装形式：SMD，外形尺寸 4.0 × 4.0 mm
- 类型：磁胶屏蔽功率电感
三、产品特点
- 磁胶屏蔽设计，有效抑制漏磁，利于高密度组装环境下的电磁兼容（EMC）控制。
- 紧凑 4×4mm 封装，节省PCB空间，便于自动贴装和回流焊工艺。
- 适中电流等级与较大电感量的组合，满足低频滤波与能量储存的需求。
- 稳定的被动参数，适用于中等功率的降压、滤波电路中。
四、典型应用场景
- 开关电源（降压/升压）输出滤波与能量储存元件。
- 模拟与数字电源去耦，抑制供电端的纹波与干扰。
- 通信设备、IoT 模块、便携终端及工业控制器的电源模块。
- EMI 抑制电路与输入滤波网络。
五、布局与使用建议
- 推荐将电感与相关电容、整流器件按电路流向合理布局，缩短信号回路，降低寄生电感与噪声耦合。
- 对于靠近敏感信号线或高频振荡节点的布局，应保持适当间距或增加屏蔽措施，以降低干扰。
- 回流焊工艺下建议参考供应商的温度曲线进行工艺验证，避免超出焊接温度对器件特性造成影响。
- 在实际设计中，应以额定电流为基准选择器件，尽量留有裕量以避免温升与饱和带来的性能退化。
六、可靠性与选型注意事项
- 直流电阻较高（约 3.25Ω），在高电流场合会导致较明显的功耗与温升，应评估系统热设计。
- 若工作环境或工况存在较大突发电流，应关注饱和电流（500mA）对电感值保持的影响，必要时选用更高电流等级的型号。
- 采购与替换时，请确认封装、引脚排列与材料一致性，避免因替代型号导致的兼容性问题。
七、包装与订购信息
型号：FNR4030S221MT；品牌：cjiang（长江微电）；封装：SMD 4×4mm。订购前建议向供应商获取最新完整规格书（包括温度特性曲线、熔焊曲线和可靠性测试数据）以便在具体应用中完成验证。
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