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cjiang(长江微电) FNR5012S1R0MT
Configuration
1 options
Configuration
Date code within 2 years
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- cjiang FNR5012S1R0MT
- Type
- CJIANG
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- CJIANG
- Electronic Component
- FNR5012S1R0MT
- Electronic Component
- 1
- Package
- SMD
- Type
- Magnetic Display Inductor
- Electronic Component
- Power Inductor
- Electronic Component
- ±20%
- Electronic Component
- 0.192g
- Inductor
- 1uH
- Electronic Component
- 1
- Electronic Component
- BM0265018956
- Current
- 2.4A
- Resistor(DCR)
- 68mΩ
- 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.
FNR5012S1R0MT 产品概述
一、产品概述
FNR5012S1R0MT 是长江微电（cjiang）推出的一款表面贴装功率电感，封装尺寸约为 5.0 × 5.0 mm（5012 规格），属于磁胶屏蔽结构的 SMD 功率电感。标称电感量为 1µH，公差 ±20%，额定工作电流 2.4A，饱和电流（Isat）可达 4.7A，直流电阻（DCR）约 68mΩ，专为开关电源与电源滤波场合设计，兼顾高电流承载与体积紧凑的需求。
二、主要参数
- 电感值：1 µH（±20%）
- 额定电流：2.4 A（连续工作电流，温升与环境有关）
- 饱和电流（Isat）：4.7 A（电感下降到指定百分比时）
- 直流电阻（DCR）：≈ 68 mΩ
- 类型：磁胶屏蔽电感（屏蔽结构，减小磁泄漏）
- 封装：SMD，5×5 mm
三、性能特点
- 高饱和电流能力：Isat 4.7A，适合大电流脉动场合，饱和裕量充足。
- 低 DCR：68 mΩ 在同尺寸同电感量中具备较低铜损，降低功耗与温升。
- 磁胶屏蔽：有效抑制磁场外泄，便于密集布板和高密度应用。
- SMD 贴片封装：适合自动化贴装与回流焊处理，尺寸紧凑利于空间受限设计。
四、典型应用
- DC-DC 降压（buck）转换器的能量储存与输出滤波
- 电源管理模块（PMIC）、负载开关电路
- LED 驱动与便携式设备电源滤波
- 通信与工业电源、汽车电子（需按温度规格核验）
五、封装与安装建议
- 推荐按制造商推荐的PCB焊盘过孔与焊盘尺寸设计，保证良好焊接与散热。
- 回流焊温度曲线遵循无铅工艺规范，避免长时间高温导致磁胶性能退化。
- 布局上将电感靠近开关管/二极管与输入/输出电容布置，缩短信号回路以降低电磁干扰。
- 对于长期稳定工作，应考虑电流缓冲与热管理，避免长期接近额定电流引起过度温升。
六、选型与注意事项
- 额定电流为器件在规定温升下的连续工作电流，实际应用中应考虑纹波电流、占空比与环境温度，适当留裕量（常用 70–85% 的额定电流作为设计目标）。
- 电感公差 ±20%，对电路谐振或滤波频率敏感时需考虑匹配或选择更高精度型号。
- 饱和特性在瞬态大电流时影响输出，关键场合请参考厂商 Isat 定义（例如电感下降到初始值的 30% 或 50% 所对应的电流）。
- 高频损耗与温升与纹波电流、开关频率相关，设计时应做热仿真或实测验证。
综合来看，FNR5012S1R0MT 以 5×5 mm 的小体积提供了良好的电流承载与屏蔽特性，适合用于中高电流密度的开关电源与电源滤波场景。在实际设计中，按厂方规格书对焊接、热管理与电流裕量进行校核，可获得稳定可靠的长期运行表现。
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