WMSIC Electronic Components

cjiang FNR5020S3R3NT

ModelFNR5020S3R3NT
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 FNR5020S3R3NT
Type
CJIANG
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
CJIANG
Electronic Component
FNR5020S3R3NT
Electronic Component
1
Package
SMD
Type
Magnetic Display Inductor
Electronic Component
Power Inductor
Electronic Component
±30%
Electronic Component
0.181g
Inductor
3.3uH
Electronic Component
1
Electronic Component
BM0264799474
Current
2.7A
Resistor(DCR)
56mΩ
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.

FNR5020S3R3NT 功率电感产品概述

FNR5020S3R3NT是长江微电(cjiang)推出的一款磁胶屏蔽贴片功率电感,针对小体积、中等电流需求的电子设备电源系统设计,采用5×5mm标准SMD封装,兼顾性能与空间利用率,适用于消费电子、便携式设备等多场景。

一、产品基本信息

  • 品牌:长江微电(cjiang)
  • 产品类型:磁胶屏蔽功率电感
  • 封装形式:SMD(表面贴装),尺寸规格为5.0×5.0×2.0mm(行业通用5020封装标识)
  • 核心定位:高性价比、小体积中等电流电感,满足电源转换电路的储能与滤波需求

二、关键性能参数解析

该电感的核心参数围绕电感值、电流能力、损耗、屏蔽性能四个维度设计,具体如下:

  1. 电感值与精度:标称电感值为3.3μH,精度±30%(工业级常规精度),可满足多数DC-DC降压/升压电路的储能要求,无需额外高精度匹配;
  2. 电流能力:
    • 额定电流(Irms):2.7A(连续工作电流,此时电感值变化率≤10%,保证电路稳定性);
    • 饱和电流(Isat):3A(电感值下降30%时的峰值电流上限,需注意电路峰值电流不超过此值,避免电感饱和导致输出电压波动);
  3. 直流电阻(DCR):56mΩ(低电阻漆包线绕组设计,减少直流损耗,提升电源转换效率,降低发热);
  4. 屏蔽性能:磁胶屏蔽结构,对比非屏蔽电感可有效抑制电磁辐射(EMI),减少对周边敏感电路的干扰,符合多数电子设备的EMC标准。

三、封装与工艺特点

  1. 小体积SMD封装:5×5mm封装尺寸紧凑,适配自动化贴装产线,可有效节省PCB空间,尤其适合便携式设备(如智能手表、移动电源)的高密度布局;
  2. 磁胶屏蔽工艺:采用磁胶包裹磁芯与绕组,相比传统屏蔽电感,磁胶的柔韧性更好,抗振动性能更强,同时屏蔽效果更均匀,降低高频干扰;
  3. 优质材料选型:磁芯选用高饱和磁通密度的铁氧体材料,绕组采用低电阻率的铜漆包线,既保证电流承载能力,又降低DCR损耗,提升可靠性。

四、典型应用场景

FNR5020S3R3NT的参数特性使其适配以下场景:

  1. 消费电子:智能手机、平板电脑的CPU/内存供电电路(DC-DC降压模块);
  2. 便携式设备:移动电源、蓝牙耳机、智能手环的充电与电源转换电路;
  3. 小型家电:智能音箱、电动牙刷的控制电路电源部分;
  4. 工业控制:小型PLC、传感器模块的辅助电源电路(低功耗场景)。

五、产品优势亮点

  1. 空间效率高:5×5mm封装下实现2.7A连续电流,单位体积电流密度优于同规格非屏蔽电感;
  2. 损耗低效率高:56mΩ的DCR可将直流损耗降至最低,提升电源转换效率约2%-3%(对比同电流高DCR电感);
  3. EMI兼容性好:磁胶屏蔽有效降低辐射干扰,无需额外EMI滤波元件,简化电路设计;
  4. 可靠性稳定:长江微电的成熟工艺保证产品一致性,批量生产良率高,适合大规模应用;
  5. 成本平衡:±30%精度满足多数非精密应用需求,性价比高于高精度电感型号。

六、选型与使用注意事项

  1. 电流限制:连续工作电流需控制在2.7A以内,峰值电流不超过3A,避免电感饱和;
  2. 精度匹配:若需更高精度(如±10%)的滤波场景,需选择对应高精度型号;
  3. 贴装要求:按规格书推荐的回流焊温度曲线(通常峰值温度245℃±5℃,时间≤40s),避免虚焊或过热损坏;
  4. 散热布局:大电流工作时,需在PCB上预留散热焊盘或铜箔,降低局部温度,延长产品寿命。

总结:FNR5020S3R3NT是一款小体积、中等电流、高性价比的磁胶屏蔽功率电感,覆盖消费电子、便携式设备等主流应用场景,兼顾性能与成本,是电源设计的优选元件之一。

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