WMSIC Electronic Components

cjiang FNR4018S150MT

ModelFNR4018S150MT
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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
cjiang FNR4018S150MT
Type
CJIANG
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
CJIANG
Electronic Component
FNR4018S150MT
Electronic Component
1
Package
SMD
Type
Magnetic Display Inductor
Electronic Component
Power Inductor
Electronic Component
±20%
Electronic Component
0.216g
Inductor
15uH
Electronic Component
1
Electronic Component
BM0264491083
Current
1A
Resistor(DCR)
325mΩ
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.

FNR4018S150MT 产品概述

一、产品简介

FNR4018S150MT 是长江微电(cjiang)系列的一款功率磁胶屏蔽贴片电感,标称电感值为 15 μH,公差 ±20%,额定电流 1 A,饱和电流(Isat)1.1 A。该器件为 SMD 封装、外形尺寸以 4×4 mm 级别为主,适合用于点位电源滤波、降压/升压转换器及各类功率管理模块中,具有体积小、磁屏蔽好、适配表面贴装工艺的优点。

二、主要技术参数

  • 品牌:cjiang(长江微电)
  • 型号:FNR4018S150MT
  • 电感值:15 μH ±20%
  • 额定电流:1.0 A
  • 饱和电流(Isat):1.1 A(定义为电感下降到特定比例时的直流偏置)
  • 直流电阻(DCR):≈ 325 mΩ
  • 类型:磁胶屏蔽功率电感(屏蔽型)
  • 封装形式:SMD,外形约 4×4 mm(具体封装尺寸请以产品数据手册为准)

三、产品特点

  • 小型化设计:4×4 mm 级别的 SMD 封装,适合高密度 PCB 布局。
  • 屏蔽结构:磁胶屏蔽,有助于降低对周边敏感器件的电磁干扰(EMI),便于靠近器件布局。
  • 电流处理能力:额定电流 1 A,饱和电流 1.1 A,适合中低功率点位供电和滤波应用。
  • 可预测的功耗:较高的 DCR(约 325 mΩ),在高电流条件下会产生显著的铜损,需要在设计时考虑功耗与温升。
  • 表面贴装兼容:适用于常规回流焊工艺,利于自动化生产。

示例:按额定电流 1 A 计算的直流损耗 P = I^2 × DCR ≈ 1^2 × 0.325 Ω = 0.325 W,因此在连续高负载条件下需评估热管理。

四、典型应用场景

  • 开关电源(DC-DC)输出滤波与能量存储(点位电源)
  • LED 驱动电源中电流导通与滤波环节
  • 手机、可穿戴设备、物联网终端等便携设备的电源模块(中低功耗)
  • 噪声抑制、EMI 过滤以及电流纹波控制场合
    (在选择用于任何应用前,请核对工作电流峰值与饱和电流、温度环境等参数)

五、选型与使用建议

  • 电流裕度:饱和电流仅为 1.1 A,建议对峰值电流做 20–30% 的裕度留量,避免在工作中进入明显饱和区;若应用存在较大的瞬态电流,建议选择更高 Isat 的产品。
  • DCR 与效率权衡:DCR 约 325 mΩ,若系统对效率和热量敏感,应评估在目标电流下的功耗和温升,必要时考虑更低 DCR 的电感。
  • 频率相关特性:电感在不同工作频率下的实际电感值和损耗会变化,建议在目标开关频率下测量 L 与损耗以确认性能。
  • 温度影响:环境温度升高会影响铜损和磁芯特性,应考虑热设计与器件周边散热条件。

六、PCB 与焊接注意事项

  • 推荐按照厂家数据手册提供的焊盘尺寸与推荐布局打样,保证焊接可靠性与热传导。
  • 支持常规无铅回流焊工艺,但要遵循回流焊温度曲线(以厂方资料为准),避免长时间高温暴露导致性能退化。
  • 贴装后避免在器件上施加过大的机械应力(尤其在波峰或局部修补焊接时)。

七、检验与储存建议

  • 来料检验建议项目:电感值(在目标频率)、DCR、额定/饱和电流测试以及外观检查(无裂纹、焊盘完整)。
  • 储存条件建议按一般电子元器件规范:干燥、避免潮湿和强磁场环境,避免高温长时存放。若存在潮湿敏感度等级(MSL),请参考厂方包装标识与回流前的烘烤要求。

八、订购信息

  • 标称型号:FNR4018S150MT
  • 品牌:cjiang(长江微电)
  • 封装:SMD,约 4×4 mm 级别
  • 在批量采购或需技术支持时,建议索取并参照厂家完整数据手册(包含尺寸图、推荐焊盘、典型频率响应曲线与热循环可靠性数据)以便完成最终设计验证。

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