WMSIC Electronic Components

cjiang FNR4026S2R2MT

ModelFNR4026S2R2MT
PackageSMD
Brandcjiang
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration Date code within 2 years

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
cjiang FNR4026S2R2MT
Type
CJIANG
Minimum package
2500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
CJIANG
Electronic Component
FNR4026S2R2MT
Electronic Component
1
Package
SMD
Type
Magnetic Display Inductor
Electronic Component
Power Inductor
Electronic Component
±20%
Electronic Component
0.291g
Inductor
2.2uH
Electronic Component
1
Electronic Component
BM0264532896
Current
3.8A
Resistor(DCR)
52mΩ
Electronic Component
Electronic Component
Electronic Component
2500

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

FNR4026S2R2MT 功率电感产品概述

FNR4026S2R2MT是长江微电(cjiang)推出的一款磁胶屏蔽SMD功率电感,针对中小功率电源转换场景设计,兼具小体积、低损耗与电磁兼容特性,可满足消费电子、车载、工业等多领域的应用需求。

一、产品基本信息

该电感属于功率电感范畴,型号命名清晰对应核心特性:

  • FNR:长江微电功率电感系列标识;
  • 4026:封装尺寸代码(通常对应4.0×4.0×2.6mm,符合SMD表面贴装规范);
  • 2R2:电感值2.2μH(“R”为小数点替代符);
  • MT:磁胶屏蔽工艺标识。

作为长江微电的成熟产品线成员,其工艺一致性与可靠性经过批量验证,适合量产化电子设备应用。

二、核心电气参数详解

1. 电感值与精度

电感值为2.2μH,精度±20%,满足一般DC-DC转换、滤波等电路的电感值设计需求(无需超高精度场景时可降低成本)。实际应用中,该精度可覆盖多数中小功率电源的纹波控制要求。

2. 电流额定值

  • 额定电流(Irms):3.8A:指电感在25℃环境下,连续工作时温度上升不超过40K的最大允许电流(实际需结合PCB散热设计调整,如增加铜箔面积可提升散热能力);
  • 饱和电流(Isat):2.4A:指电感磁芯饱和时(电感值下降30%)的最大电流,设计电路时需确保峰值电流不超过此值,避免电感性能突变导致输出电压波动。

3. 直流电阻(DCR)

DCR为52mΩ,内阻较低,可减少电流通过时的功率损耗(P=I²R),提升电源转换效率。例如,当工作电流为2A时,损耗仅为0.208W,适合对功耗敏感的移动设备、车载电源等场景。

4. 屏蔽特性

采用磁胶屏蔽结构,相比非屏蔽电感可显著降低电磁辐射(EMI),符合电磁兼容(EMC)标准,避免对周边敏感电路(如射频模块)造成干扰,适用于对EMI要求严格的车载、通信设备。

三、封装与结构特点

1. 封装形式

SMD(表面贴装)封装,尺寸紧凑(4×4mm级别),可直接通过SMT工艺贴装于PCB,适合自动化生产,节省PCB布局空间,适配小型化电子设备(如手机、智能穿戴)。

2. 结构优势

  • 磁胶屏蔽层紧密包裹磁芯,抗振动、抗冲击性能优异,可满足车载(振动环境)、工业现场的可靠性要求;
  • 绕线工艺采用多股线或扁线(依批次略有差异),降低交流电阻(ACR),进一步提升高频下的效率;
  • 引脚采用镀锡工艺,焊接可靠性高,减少虚焊风险。

四、典型应用场景

1. 消费电子领域

  • 手机、平板、笔记本电脑的DC-DC降压模块(如CPU、内存供电):小体积适配移动设备紧凑空间,低DCR提升电池续航;
  • 无线充电器、快充头的滤波/储能电感:满足快充时的大电流需求(如18W快充的峰值电流),磁胶屏蔽减少EMI干扰,避免影响无线充电效率。

2. 车载电子领域

  • 车载USB充电器、信息娱乐系统的电源模块:抗振动、低EMI特性适配车内电磁环境,额定电流满足车载设备(如导航、音响)的供电需求;
  • 汽车传感器(如胎压监测、倒车雷达)的辅助电源:稳定的电感性能保障传感器数据传输可靠性,宽温特性适配-40℃~+85℃的车载环境。

3. 工业与通信领域

  • 小型PLC、传感器节点的电源滤波电路:额定电流覆盖中小功率需求(如5V/2A输出),磁胶屏蔽减少工业现场电磁干扰;
  • 路由器、交换机的DC-DC转换模块:一致性好,适合批量生产的通信设备,降低调试成本。

五、品牌与可靠性优势

长江微电(cjiang)是国内专注于电感研发生产的企业,其产品通过以下可靠性测试验证:

  • 高低温循环测试(-40℃~+85℃,循环500次):电感值变化率≤±5%,满足宽温环境应用;
  • 振动测试(10~2000Hz,加速度1.5g):无结构损坏、参数漂移,适配车载、工业振动场景;
  • 湿度测试(85%RH,40℃,96小时):DCR变化率≤±10%,保障潮湿环境下的稳定性。

FNR4026S2R2MT的磁胶屏蔽工艺成熟,批量供货一致性好,可作为中小功率电源设计的优选电感之一。

该产品平衡了性能、体积与成本,适合对EMI、功耗有要求的中小功率电源场景,是电子设备电源设计的实用选择。

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