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cjiang FNR4020S6R2MT
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- cjiang FNR4020S6R2MT
- Type
- CJIANG
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- CJIANG
- Electronic Component
- FNR4020S6R2MT
- Electronic Component
- 1
- Package
- SMD
- Type
- Magnetic Display Inductor
- Electronic Component
- Power Inductor
- Electronic Component
- ±20%
- Electronic Component
- 0.245g
- Inductor
- 6.2uH
- Electronic Component
- 1
- Electronic Component
- BM0264754175
- Current
- 1.6A
- Resistor(DCR)
- 150mΩ
- Electronic Component
- Electronic Component
- Electronic Component
- 3000
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
FNR4020S6R2MT 产品概述
一、产品简介
FNR4020S6R2MT 是长江微电（cjiang）面向电源滤波与能量储存应用推出的一款磁胶屏蔽功率电感。标称电感量为 6.2 μH，公差 ±20%，为表面贴装（SMD）封装，外形尺寸为 4×4 mm，适合对体积、成本和可靠性有较高要求的消费电子与通信类电源模块。
二、主要技术参数
- 电感值：6.2 μH（±20%）
- 额定电流：1.6 A（温升与温度环境下的持续工作电流）
- 饱和电流（Isat）：2.3 A（电感量下降至初始值的某一比例时的电流）
- 直流电阻（DCR）：150 mΩ
- 类型：磁胶屏蔽电感（屏蔽结构，抑制漏磁）
- 封装：SMD，尺寸 4×4 mm
- 品牌：cjiang（长江微电）
- 型号：FNR4020S6R2MT
三、特点与优势
- 紧凑尺寸：4×4 mm 的 SMD 封装，便于高密度 PCB 设计与批量自动贴装。
- 良好屏蔽性：磁胶屏蔽结构可降低对周边元件的磁干扰，适合靠近敏感信号线布局。
- 中等功率承载：1.6 A 的额定电流与 2.3 A 的饱和电流，为小型 DC-DC 降压/升压模块和电源滤波提供可靠的电流余量。
- 适用广泛：适合各类便携设备、LED 驱动、电源管理模块与通信设备的输入/输出滤波或能量储存。
四、典型应用
- 升降压（Boost/Buck）开关电源的储能电感与输出滤波
- 电源噪声抑制与 EMI 滤波
- 移动终端、物联网模块、通信设备及小功率 LED 驱动
- 电池供电系统的局部电源设计
五、选型与使用建议
- 电流裕量：建议在实际工作电流低于额定电流（1.6 A）且远低于饱和电流（2.3 A）的条件下使用，以避免电感饱和导致性能下降。
- 考虑温升与损耗：DCR 为 150 mΩ，会产生一定的铜损与温升，设计时需评估功率损耗与散热条件，必要时按环境温度进行电流降额。
- 滤波与纹波电流：若用于开关电源，其纹波电流成分会加速发热，需关注纹波峰值是否接近 Isat。
- 与电容配合：输出滤波时与低 ESR 电容配合，能获得更好的输出纹波抑制效果。
六、封装与焊接注意事项
- 推荐采用标准回流焊工艺，遵循制造商的回流曲线与湿气敏感级别（MSL）要求。若无具体曲线，请遵循通用无铅回流温度规范并先做小批量验证。
- PCB 布局：电感应尽量靠近开关管或负载端，缩短信号回流路径；为改善散热，可在下侧敷铜或增加过孔扩散热量。
- 储存与搬运：避免受潮与强磁场环境，贴片过程中注意防止机械挤压导致外观或内部结构损伤。
若需完整数据手册（如频率相关的电感曲线、饱和定义、热阻或回流曲线），建议联系长江微电获取原厂资料以便进行精确设计验证。
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