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cjiang FNR4020S1R5MT
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- cjiang FNR4020S1R5MT
- Type
- CJIANG
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- CJIANG
- Electronic Component
- FNR4020S1R5MT
- Electronic Component
- 1
- Package
- SMD
- Type
- Magnetic Display Inductor
- Electronic Component
- Power Inductor
- Electronic Component
- ±20%
- Electronic Component
- 0.245g
- Inductor
- 1.5uH
- Electronic Component
- 1
- Electronic Component
- BM0257699612
- Current
- 3A
- Resistor(DCR)
- 46mΩ
- 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.
FNR4020S1R5MT 产品概述
一、产品简介
FNR4020S1R5MT 是长江微电（cjiang）推出的一款 SMD 功率电感，电感值为 1.5 µH，公差 ±20%，额定电流 3A，饱和电流 Isat 4.9A，直流电阻（DCR）约 46 mΩ。封装为表面贴装（SMD），外形约为 4×4 mm，采用磁胶屏蔽结构，适合中小功率开关电源与滤波场景。
二、主要特点
- 稳定的磁胶屏蔽结构，降低磁通外泄与 EMI 干扰；
- 中等电感值与较高的额定电流，适合 1A–3A 级别的降压、升压开关电源；
- DCR 较低，在保证饱和电流的同时兼顾导通损耗与效率；
- SMD 4×4mm 紧凑封装，便于高密度 PCB 布局。
三、电气性能要点
- 标称电感：1.5 µH（±20%）；
- 额定电流：3 A（长期允许通过且能保持额定电感和温升在可接受范围）；
- 饱和电流 Isat：4.9 A（指在规定降幅时出现磁饱和的电流点）；
- 直流电阻 DCR：约 46 mΩ（在 3 A 时静态铜损约 I^2·R = 0.414 W，设计时需考虑散热与效率影响）。
四、典型应用场景
- 同步/非同步降压（buck）转换器电感；
- LED 驱动、电池供电装置的电源滤波；
- 通信、工控、物联网终端的局部电源去耦与能量储存；
- 需要磁屏蔽与体积受限的电源模块。
五、选型与使用建议
- 留有电流裕量：建议实际电流小于额定值（如 70%–90%）以减少温升并延长寿命；
- 考虑直流偏置效应：在大电流工作时电感值会随直流偏置下降，必要时选更高标称电感或更高饱和电流型号；
- 布局与焊接：开关器件与电感间走线尽量短、粗，靠近开关结点放置以降低 EMI；遵循厂商推荐的焊盘尺寸与回流工艺；
- 散热与环境：高温环境下需评估功耗与温升，必要时加大散热或降低工作电流。
六、可靠性与包装信息
FNR4020S1R5MT 采用 SMD 封装，适合标准回流焊工艺；磁胶屏蔽结构有利于长期 EMI 性能稳定。常规检验包括外观、直流电阻、电感值及高低温循环试验。具体包装形式、卷带长度及焊接工艺参数请参考厂商数据手册或联系长江微电获取详细资料。
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