WMSIC Electronic Components

cjiang FNR4012S100MT

ModelFNR4012S100MT
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 FNR4012S100MT
Type
CJIANG
Minimum package
4500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
CJIANG
Electronic Component
FNR4012S100MT
Electronic Component
1
Package
SMD
Type
Magnetic Display Inductor
Electronic Component
Power Inductor
Electronic Component
±20%
Electronic Component
0.165g
Inductor
10uH
Electronic Component
1
Electronic Component
BM0258760337
Current
1A
Resistor(DCR)
345mΩ
Electronic Component
Electronic Component
Electronic Component
4500

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

FNR4012S100MT 产品概述

一、产品简介

FNR4012S100MT 是长江微电(cjiang)推出的一款 SMD 功率电感,封装尺寸约为 4×4mm,采用磁胶屏蔽结构,设计用于对电源滤波与能量储存场合的降噪与稳压。电感标称值为 10 µH,公差 ±20%,具备较好的电流承载能力和饱和特性,适合空间受限的消费电子与工业控制电路中作为电源滤波或电感元件使用。

二、主要参数

  • 电感值:10 µH(±20%)
  • 额定电流:1.0 A
  • 饱和电流 Isat:1.1 A(指定电感下降到初始值某一比例时的电流)
  • 直流电阻 DCR:345 mΩ
  • 类型:磁胶屏蔽电感(电磁屏蔽、低辐射)
  • 封装:SMD,4×4 mm 尺寸
  • 产品型号:FNR4012S100MT(长江微电)

三、性能特点

  • 小型化:4×4mm 标准 SMD 外形,便于高密度 PCB 布局。
  • 良好屏蔽性:磁胶屏蔽结构有效降低对周边电路的磁干扰。
  • 稳定的电流承载:额定 1 A,饱和电流 1.1 A,适合中小功率电源应用。
  • 适合滤波:10 µH 电感量在低频滤波和降噪电路中表现良好。
  • 可回流焊接:兼容常见 SMT 贴装与回流工艺(具体焊接曲线请参考厂方资料)。

四、典型应用

  • DC-DC 降压/升压转换器中的输出滤波电感。
  • 模拟电路和数字电源的输入/输出滤波。
  • 通信设备、便携式设备、工控模块等对 EMI 有要求的场合。
  • 电池供电系统、便携电源管理电路中作为储能元件。

五、使用注意事项

  • 电流裕量:请留有适当裕量,避免长期在额定电流附近工作导致升温或接近饱和。
  • 温度影响:高温环境会影响 DCR 与电感值,使用时需考虑温升与周围元器件的热耦合。
  • 贴装方向:按推荐的 PCB 封装与焊盘布局贴装,避免应力集中造成焊点裂纹。
  • 若需严格的 EMI 性能或更高电流,请参考同系列更高电流规格产品或并联方案。

六、封装与安装建议

  • 推荐在 PCB 上留足焊盘尺寸与焊膏量以保证焊接可靠性并减小 DCR 增加的风险。
  • 回流焊过程中遵循元件厂方推荐的温度曲线,避免骤冷骤热造成结构应力。
  • 对于需要机械强度的应用,建议在贴装后进行振动与冲击验证。

七、选型参考

  • 若电流持续超过 0.8–1.0 A,应考虑选择额定电流更高或 Isat 更大的型号。
  • 若对 DCR 要求更低以减小损耗,应选择线径更大或芯材不同的替代品。
  • 对 EMI 要求极高时,可选用更强屏蔽或多层结构的电感件。

八、可靠性与测试

  • 建议在产品设计阶段进行温升测试、长期老化和电流冲击测试以确认在目标工况下的可靠性。
  • 量产前请向长江微电索取完整的数据手册与检验标准(包括 S-参数/频率特性曲线、热阻和焊接规范)以便最终确认。

如需完整数据手册、样品或批量采购信息,可联系长江微电(cjiang)或其授权代理商,获取典型频率响应、温升曲线与可靠性测试报告,以便在具体应用中做最终评审与验证。

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