WMSIC Electronic Components

cjiang FNR5040S1R0MT

ModelFNR5040S1R0MT
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 FNR5040S1R0MT
Type
CJIANG
Minimum package
1500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
CJIANG
Electronic Component
FNR5040S1R0MT
Electronic Component
1
Package
SMD
Type
Magnetic Display Inductor
Electronic Component
Power Inductor
Electronic Component
±20%
Electronic Component
0.579g
Inductor
1uH
Electronic Component
1
Electronic Component
BM0264754156
Current
5A
Resistor(DCR)
16mΩ
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.

FNR5040S1R0MT 磁胶屏蔽功率电感产品概述

一、产品核心身份与定位

FNR5040S1R0MT是长江微电(cjiang)推出的一款SMD贴片磁胶屏蔽功率电感,针对中小功率电源转换场景设计,主打“紧凑尺寸+高电流承载+低电磁干扰”特性,适配消费电子、工业控制等高密度PCB布局需求。该型号属于长江微电功率电感系列的常规款,以稳定的电气性能和高性价比成为市场常见选型之一,广泛应用于快充、便携式设备等对尺寸敏感的场景。

二、关键电气与物理参数

2.1 电气核心参数

  • 电感值与精度:标称1uH,精度±20%,满足大多数DC-DC转换电路的电感量需求(无需高精度滤波场景);
  • 电流承载能力:额定电流(Irms)5A(电感温升≤40℃时的持续工作电流),饱和电流(Isat)8A(电感值下降30%的临界电流)——实际应用中需保证工作电流远低于Isat,避免电感性能突变;
  • 直流电阻(DCR):16mΩ,低阻值设计可减少电流损耗,提升电源转换效率(按I²R计算,5A电流下损耗仅0.4W);
  • 屏蔽特性:磁胶屏蔽,有效抑制电磁辐射(EMI),降低对周边敏感元件(如模拟传感器、射频模块)的干扰。

2.2 物理参数

  • 封装尺寸:SMD贴片,规格5x5mm(长×宽),厚度约4mm(常规功率电感厚度),紧凑尺寸适合空间受限的PCB设计(如智能手机主板、移动电源内部);
  • 安装方式:回流焊兼容,支持自动化贴片生产,适配常规电子组装工艺(引脚镀锡工艺保证焊点强度)。

三、结构设计与工艺特点

  1. 磁胶屏蔽结构:采用磁胶包裹绕组,替代传统金属屏蔽壳,既降低了电感的EMI辐射(比非屏蔽款低20dB以上),又减轻了重量(比金属屏蔽款轻约15%),同时避免了屏蔽壳与绕组的短路风险;
  2. 低损耗绕组:使用高导电率铜线绕制,配合优化的绕组匝数与线径(0.5mm左右),实现16mΩ的低DCR,减少电流通过时的热损耗;
  3. 耐温性能:磁芯与绕组的耐温范围覆盖-40℃~125℃,适配常规电子设备的工作环境(若需车规级应用,需选择带AEC-Q200认证的衍生型号);
  4. 可靠性设计:引脚采用防氧化镀锡处理,回流焊时润湿性能好,长期工作(1000小时以上)不易出现虚焊、脱落问题。

四、典型应用场景

FNR5040S1R0MT的参数特性决定了其适合中小功率电源转换、低EMI要求的场景,具体包括:

  1. 消费电子快充模块:智能手机、平板电脑的18W~65W快充电路(DC-DC降压/升压模块),需承载5A左右的持续电流;
  2. 便携式设备电源:移动电源(10000mAh及以下)、无线充电器的升压电路,紧凑尺寸适配设备内部空间;
  3. 工业控制辅助电源:小型PLC、传感器模块的DC-DC转换电路,磁胶屏蔽减少对模拟电路的干扰;
  4. 通信设备电源:路由器、交换机的5V/12V电源模块,满足多端口供电的电流需求;
  5. LED驱动电路:小功率LED显示屏、室内照明驱动的恒流/恒压电路,电感量1uH适配高频开关电源(200kHz~1MHz)。

五、选型与使用注意事项

  1. 电流选型原则:实际工作电流需≤额定电流(5A),若存在脉冲电流(如快充启动瞬间),需按均方根电流计算,避免温升过高导致电感性能下降;
  2. 电感值精度适配:±20%的精度适合常规电源电路,若需高精度滤波(如射频电路),需选择±10%或更高精度型号;
  3. 散热设计:虽然DCR低,但高电流工作时仍会产生热量,需保证PCB上电感周边留有2mm以上散热空间(避免与发热元件紧密相邻);
  4. 安装工艺:回流焊温度需控制在260℃以内(峰值),时间≤10秒,避免过温损坏磁芯或绕组;
  5. 替代选型参考:若需更高电流(如6A以上),可考虑同系列FNR5040S1R0MT的高电流版本(需核对长江微电官方datasheet);若尺寸需更小,可选择3x3mm封装的同电感值型号,但电流承载能力会下降至3A左右。

该型号凭借平衡的性能与成本优势,成为中小功率电源设计中的高性价比选型,适合对尺寸、EMI、电流承载有综合要求的场景。

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