WMSIC Electronic Components

cjiang FNR4030S270MT

ModelFNR4030S270MT
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 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
cjiang FNR4030S270MT
Type
CJIANG
Minimum package
2000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
CJIANG
Electronic Component
FNR4030S270MT
Electronic Component
1
Package
SMD
Type
Magnetic Display Inductor
Electronic Component
Power Inductor
Electronic Component
±20%
Electronic Component
0.338g
Inductor
27uH
Electronic Component
1
Electronic Component
BM0264754139
Current
1.05A
Resistor(DCR)
338mΩ
Electronic Component
Electronic Component
Electronic Component
2000

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

FNR4030S270MT 磁胶屏蔽功率电感产品概述

FNR4030S270MT是长江微电(cjiang)推出的一款小型化磁胶屏蔽功率电感,专为低EMI(电磁干扰)、高可靠性的电子电路设计,适用于消费电子、车载电子、LED驱动等多领域的电源管理场景。该产品采用SMD贴片封装,体积紧凑(4×4mm),兼具高电感值与高电流承载能力,是中小功率电路中电感选型的高性价比方案。

一、产品核心定位与优势

FNR4030S270MT属于磁胶屏蔽型功率电感,相比普通非屏蔽电感,磁胶结构能有效抑制电磁辐射,降低对周边电路的干扰;同时,其紧凑的4×4mm封装适配主流贴片生产工艺,可直接集成于高密度PCB板,满足小型化电子设备的设计需求。核心优势包括:

  • 低EMI:磁胶屏蔽减少电磁辐射,符合EMC(电磁兼容性)标准,适配对干扰敏感的电路;
  • 高电流承载:额定电流1.05A,饱和电流1.35A,支持中小功率电路的连续/脉冲工作;
  • 稳定电感特性:电感值精度±20%,在-40℃至+85℃宽温度范围内保持性能稳定;
  • 低损耗:直流电阻(DCR)仅338mΩ,降低电路自身功耗,提升电源转换效率。

二、基础参数详细解析

该产品的关键参数直接决定了其应用范围,具体解析如下:

1. 电感值与精度

电感值为27μH±20%,属于中小功率电感的典型值,满足DC-DC转换器、LED驱动等电路对电感储能的需求。±20%的精度符合工业级电感的通用标准,可覆盖大多数非超高精度的电源设计场景,无需额外的电感匹配调试。

2. 电流承载能力

  • 额定电流(Irms):1.05A:指电感在连续工作时,自身温升不超过行业标准(通常≤40℃)的最大电流,是长期稳定工作的核心指标,避免因过热导致性能衰减;
  • 饱和电流(Isat):1.35A:指磁芯开始饱和(电感值下降约30%)时的电流,若电路峰值电流超过该值,可能导致电感储能能力骤降,影响电路输出稳定性,甚至损坏元件。

3. 直流电阻(DCR)

DCR为338mΩ,反映了电感绕组的电阻损耗。低DCR意味着在相同电流下,电感自身的功耗(I²R)更低,例如当工作电流为1A时,功耗仅0.338W,可提升DC-DC转换器的转换效率(通常提升1%-2%),适配电池供电的低功耗设备。

4. 封装与尺寸

采用SMD贴片封装,尺寸为4×4mm(长×宽),高度符合行业通用标准(通常≤2mm),适配0402、0603等周边贴片元件,支持自动贴装(SMT),生产效率高,适合批量生产的高密度PCB设计。

三、典型应用场景

FNR4030S270MT的参数特性使其适用于以下场景:

1. 消费电子电源管理

  • 手机、平板、笔记本电脑的DC-DC降压转换器(如5V转3.3V/1.2V的电源模块);
  • 机顶盒、路由器、智能音箱的电源滤波与储能电路,满足小型化设备的空间需求。

2. LED驱动电路

  • 小功率LED照明(如台灯、氛围灯)的恒流驱动电路,电感用于储能与滤波,稳定LED电流输出;
  • 车载LED显示屏的电源模块,低EMI特性适配车载电磁环境,避免干扰车载电子系统。

3. 车载电子

  • 车载导航、行车记录仪的12V转5V/3.3V电源转换电路,支持宽电压输入下的稳定输出;
  • 车载传感器(如胎压监测、倒车雷达)的电源滤波,磁胶屏蔽减少对其他电子系统的干扰。

4. 工业控制小模块

  • 小型PLC(可编程逻辑控制器)的辅助电源,满足低功率控制电路的储能需求;
  • 传感器节点的电源管理,支持低功耗模式下的稳定工作,延长电池续航。

四、品牌与可靠性说明

FNR4030S270MT由长江微电(cjiang) 生产,该品牌是国内专注于功率电感研发与制造的企业,拥有10余年电感设计经验,产品覆盖消费电子、车载、工业等领域。该电感符合RoHS、REACH等环保标准,且通过UL、CE等安全认证,可靠性得到市场验证。

此外,产品采用高品质铁硅铝磁芯与漆包铜线绕组,在-40℃至+85℃的宽温度范围内性能稳定,可满足不同环境下的工作需求,例如车载环境的高低温变化、工业现场的温度波动。

五、选型注意事项

在使用FNR4030S270MT时,需注意以下几点:

  1. 电流匹配:电路的连续工作电流需≤1.05A,峰值电流≤1.35A,避免过载导致温升过高或磁芯饱和;
  2. PCB布局:电感周边应预留5mm以上空间,减少与其他元件的电磁耦合,进一步降低EMI;
  3. 效率考虑:若对电路效率要求较高(如电池供电设备),需核算电感的功耗(I²×DCR),确保符合设计要求;
  4. 温度降额:若工作环境温度超过85℃,需适当降额使用(通常降额20%-30%),保证长期可靠性。

综上,FNR4030S270MT是一款性能均衡、性价比高的磁胶屏蔽功率电感,可满足多领域中小功率电路的电感需求,是电子设计中电感选型的可靠选择。

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