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cjiang FNR5040S101MT
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- cjiang FNR5040S101MT
- Type
- CJIANG
- Minimum package
- 1500 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- CJIANG
- Electronic Component
- FNR5040S101MT
- Electronic Component
- 1
- Package
- SMD,5x5mm
- Type
- Magnetic Display Inductor
- Electronic Component
- Power Inductor
- Electronic Component
- ±20%
- Electronic Component
- 0.579g
- Inductor
- 100uH
- Electronic Component
- 1
- Electronic Component
- BM0232021519
- Current
- 780mA
- Resistor(DCR)
- 728mΩ
- 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.
FNR5040S101MT 产品概述
一、产品简介
FNR5040S101MT 是长江微电（cjiang）推出的一款磁胶屏蔽功率电感，标称电感量为 100 µH，公差 ±20%。该器件为表贴封装（SMD），封装尺寸 5 × 5 mm，适用于空间受限且要求电磁兼容的降压转换器与滤波场合。
二、主要性能参数
- 电感量：100 µH（±20%）
- 额定电流：780 mA（Idc）
- 饱和电流（Isat）：850 mA（定义电感下降到初始值的多少视厂商标准）
- 直流电阻（DCR）：728 mΩ
- 类型：磁胶屏蔽电感（降低磁通泄漏，改善 EMI）
- 封装：SMD，5×5 mm
- 品牌：cjiang（长江微电）
三、设计特性与优势
- 磁胶屏蔽结构有效抑制磁通外泄，可降低对周围敏感电路的干扰，适合靠近IC布局的电源线圈。
- 5×5 mm 的紧凑封装便于高密度贴片组装与自动化生产。
- 100 µH 的较大电感值适用于低频纹波滤波与能量储存场合。
四、性能注意点（建议）
- DCR 值较高（0.728 Ω），在接近额定电流时会产生明显铜损：按 P = I^2·R 估算，额定电流 0.78 A 下铜损约 0.44 W，饱和电流 0.85 A 处铜损更高。设计时需注意温升与效率影响。
- 建议实际工作电流优先以额定电流 780 mA 为上限，并留有裕量（通常建议工作电流 ≤ 80% Isat）以避免电感饱和和过热。
- ±20% 公差在滤波与谐振电路中需考虑容差累积对系统性能的影响。
五、典型应用
- 开关电源（DC-DC 降压转换器）中的输出滤波/储能电感；
- 电源输入滤波与噪声抑制；
- 工业控制、通信设备和消费电子中对 EMI 要求较高且空间受限的电源模块。
六、使用建议与可靠性
- 布局时将电感与高发热元件保持适当间距，并在 PCB 上提供足够的铜箔散热路径以降低温升。
- 如需长期在接近额定/饱和电流工作，建议进行热仿真与实测验证，确认温度和电感衰减满足系统要求。
- 推荐使用卷盘（Tape & Reel）进行贴片加工与回流焊工艺，遵循厂商给出的回流温度曲线与焊接说明。
七、包装与订购
- 型号：FNR5040S101MT；品牌：cjiang（长江微电）。
- 订购时请确认电流、DCR 与封装尺寸满足系统需求；如需更严格公差或更低 DCR 的替代款，可咨询厂商或查看系列产品规格表以选择更合适型号。
如需基于该电感的热耗、效率估算或在特定拓扑（如同步/非同步降压）中的仿真建议，我可根据系统参数给出更详细的计算与选型建议。
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