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cjiang FNR5040S2R2MT
Configuration
1 options
Configuration
Date code within 2 years
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- cjiang FNR5040S2R2MT
- Type
- CJIANG
- Minimum package
- 1500 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- CJIANG
- Electronic Component
- FNR5040S2R2MT
- Electronic Component
- 1
- Package
- SMD
- Type
- Magnetic Display Inductor
- Electronic Component
- Power Inductor
- Electronic Component
- ±20%
- Electronic Component
- 0.579g
- Inductor
- 2.2uH
- Electronic Component
- 1
- Electronic Component
- BM0257699608
- Current
- 4.2A
- Resistor(DCR)
- 25mΩ
- Electronic Component
- Electronic Component
- Electronic Component
- 1500
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
FNR5040S2R2MT 产品概述
一、产品简介
FNR5040S2R2MT 为长江微电（cjiang）推出的一款磁胶屏蔽功率电感，尺寸为 SMD 5×5mm，专为高密度开关电源与电流滤波场景设计。额定电感值 2.2µH，允许偏差 ±20%，具备较高的额定电流和饱和电流，适合要求较大直流电流和低损耗的应用。
二、主要参数
- 电感值：2.2µH（±20%）
- 额定电流（Irated）：4.2A
- 饱和电流（Isat）：5.5A
- 直流电阻（DCR）：25mΩ
- 类型：磁胶屏蔽电感（磁屏蔽，低电磁辐射）
- 封装：SMD，外形尺寸 5×5mm
- 型号：FNR5040S2R2MT，品牌：长江微电（cjiang）
三、特性与优势
- 高电流承载能力：4.2A 的额定电流满足中等功率点的持续工作要求，5.5A 的饱和电流为瞬态峰值提供裕量。
- 低 DCR 损耗：25mΩ 的直流电阻有利于降低功耗和发热，提高系统效率。
- 磁胶屏蔽设计：有效抑制磁场泄露，便于贴近敏感器件布局，减小 EMI 干扰。
- SMD 小尺寸：5×5mm 封装有利于高密度 PCB 布局和自动化贴装，适合消费电子与通信设备。
四、典型应用
- 开关稳压电源（降压/升压转换器）滤波与储能元件
- 输入/输出电源滤波（PoL、VRM）
- 通信设备、路由器、服务器电源模块
- 工业控制与电力管理子系统
五、选型与使用建议
- 持续电流与散热：在接近额定电流工作时需关注 PCB 散热与环境温度，适当留有余量或采取热扩散措施。
- 饱和裕量：若电路存在较大峰值电流，应根据峰值与持续值比较选择，避免接近 Isat 导致感值下降。
- DCR 与效率权衡：若系统对效率要求极高，可考虑更低 DCR 的替代型号；若对抑制 EMI 有更高要求，本型号磁屏蔽优势明显。
- 焊接与可靠性：遵循元件厂商推荐的回流曲线和 PCB 焊盘设计以保证焊接可靠性与热疲劳寿命。
六、结语
FNR5040S2R2MT 在 5×5mm 紧凑尺寸下兼具较高电流承载能力和良好的屏蔽特性，适用于中高电流的开关电源与滤波场合。选型时应结合实际工作电流、温升与 EMI 要求进行权衡，以发挥其最佳性能。若需更详细的电气特性曲线或封装资料，建议联系厂商获取数据手册。
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