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cjiang FNR5020S2R2MT
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- cjiang FNR5020S2R2MT
- Type
- CJIANG
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- CJIANG
- Electronic Component
- FNR5020S2R2MT
- Electronic Component
- 1
- Package
- SMD
- Type
- Magnetic Display Inductor
- Electronic Component
- Power Inductor
- Electronic Component
- ±20%
- Electronic Component
- 0.181g
- Inductor
- 2.2uH
- Electronic Component
- 1
- Electronic Component
- BM0258614533
- Current
- 3.1A
- Resistor(DCR)
- 42mΩ
- 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.
FNR5020S2R2MT 产品概述
一、产品简介
FNR5020S2R2MT 是长江微电（cjiang）推出的一款表面贴装磁胶屏蔽功率电感，封装尺寸为 5×5mm。该器件针对开关稳压电源和DC-DC变换器的电流滤波需求设计，具有较高的额定电流与饱和电流，适合中功率密度的电源模块使用。
二、主要参数
- 电感值：2.2 μH（±20%）
- 额定电流：3.1 A（可长期通过而不超过温升或参数漂移限值）
- 饱和电流（Isat）：4 A（电感值降至初始值一定比例时对应的电流）
- 直流电阻（DCR）：42 mΩ
- 类型：磁胶屏蔽电感（屏蔽结构，减少外部磁耦合）
- 封装：SMD，尺寸 5×5 mm
- 品牌：cjiang（长江微电）
- 型号：FNR5020S2R2MT
三、产品特点
- 体积小、功率密度高：5×5mm 紧凑型封装适合高密度布局。
- 良好抗饱和性能：4A 的饱和电流使其在电流尖峰或负载突变时仍能保持稳定工作。
- 低直流电阻：42 mΩ 有利于降低导通损耗，提高转换效率。
- 屏蔽结构：磁胶屏蔽设计减少对周围敏感器件的磁干扰，便于模块化设计。
四、典型应用场景
- 同步整流或非同步降压（Buck）转换器输出滤波
- 电源管理模块（PMIC）及点-of-load（POL）电源
- 手持设备、工业控制、通信设备的中低功率电源
- 需要低噪声、抗干扰的开关电源前后端滤波
五、选型与使用建议
- 选型时考虑实际工作电流和纹波电流，应留有一定裕量，建议额定电流取实际最大连续电流的 1.2 倍以上以降低温升。
- 注意饱和电流限制，在短时浪涌或开机冲击电流下避免超过 Isat，必要时并联或选用更大电流规格。
- PCB 布局要保证散热和低噪声路径：电感与开关管、二极管（或MOSFET）及输出电容应尽量靠近，输入输出回路走短线并加宽铜箔。
- 焊接工艺需按照SMD工艺控制回流温度曲线，避免高温或长时间加热导致材料性能变化。
六、可靠性与采购
- 适用于工业级应用场景，建议在样机验证中关注温升、频率特性和长期稳定性。
- 订购时请确认型号 FNR5020S2R2MT、封装与出货包装方式以确保与生产一致。
如需详细电感频率特性曲线、温升数据或电气噪声测试报告，请提供样机或咨询厂商技术支持以获得完整数据手册。
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