WMSIC Electronic Components

cjiang FNR5040S332MT

ModelFNR5040S332MT
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 FNR5040S332MT
Type
CJIANG
Minimum package
1500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
CJIANG
Electronic Component
FNR5040S332MT
Electronic Component
1
Package
SMD
Type
Magnetic Display Inductor
Electronic Component
Power Inductor
Electronic Component
±20%
Electronic Component
0.579g
Inductor
3.3mH
Electronic Component
1
Electronic Component
BM0264900052
Current
120mA
Resistor(DCR)
25.2Ω
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.

FNR5040S332MT 磁胶屏蔽功率电感产品概述

一、产品基本识别与定位

FNR5040S332MT是长江微电(cjiang)推出的磁胶屏蔽贴片功率电感,型号命名逻辑清晰:

  • “FNR”为品牌系列标识,代表长江微电功率电感产品线;
  • “5040”对应封装尺寸(5.0×5.0mm,厚度约4.0mm),适配小型化电路设计;
  • “332”为电感值编码(33×10²μH=3.3mH);
  • “MT”明确磁胶屏蔽工艺特性。

该产品定位为小功率低EMI电感,核心服务于对体积、电磁干扰敏感的小型电子设备,兼顾可靠性与成本优势。

二、核心电气参数详解

1. 电感值与精度

标称电感值为3.3mH,精度±20%,属于功率电感常规精度范围,可满足多数民用级、工业级低精度电路需求(如电源滤波、低功耗DC-DC),无需额外高精度匹配元件。

2. 电流特性

  • 额定电流(Irms)120mA:指电感在额定温度(105℃)下连续工作时,电感值变化≤±10%的最大电流,是长期可靠工作的核心限制参数;
  • 饱和电流(Isat)150mA:指电感值下降至标称值30%时的电流,为电路瞬间过载的极限参考(实际设计需避免接近此值,防止电感性能失效)。

3. 直流电阻(DCR)25.2Ω

该参数反映绕组铜损,120mA额定电流下的功率损耗约为0.36W(P=I²R=0.12²×25.2),符合小功率电感的损耗控制要求,可有效降低电路发热。

三、封装与物理特性

1. 小型化贴片封装

采用5.0×5.0×4.0mm SMD封装,适配自动化贴装生产线,生产效率高;同时便于集成到紧凑PCB布局中,满足电子设备轻薄化趋势。

2. 磁胶屏蔽设计

相比传统开放式电感,磁胶屏蔽可显著降低电磁辐射(EMI),减少对周边敏感电路(如射频模块、传感器)的干扰;同时提升电感自身抗干扰能力,适配EMC要求严格的场景。

3. 耐温特性

工作温度范围为**-40℃105℃**,可适应宽温环境(如户外物联网终端、车载辅助设备),存储温度需控制在-40℃85℃、湿度≤60%,避免磁胶性能劣化。

四、典型应用场景

FNR5040S332MT因体积小、低EMI、小电流特性,广泛应用于:

  1. 小功率DC-DC转换器:智能穿戴(手环、蓝牙耳机)升压/降压电路、物联网终端(低功耗传感器节点)电源管理;
  2. 电源滤波电路:开关电源输出纹波抑制、LDO输入/输出滤波,提升电源稳定性;
  3. EMI滤波模块:小型家电、通信终端的电磁兼容(EMC)设计,干扰抑制;
  4. 小型电子模块:医疗监护仪(低功耗传感器)、智能家居控制器(无线模块周边)等对体积敏感的场景。

五、产品优势与使用注意

1. 核心优势

  • 低EMI:磁胶屏蔽适配EMC严格场景,避免干扰周边电路;
  • 小体积:5×5mm封装满足轻薄化设计需求;
  • 品质稳定:长江微电工艺成熟,供货周期可控,适合批量生产。

2. 使用注意事项

  • 长期工作电流≤120mA,避免过流导致电感升温老化;
  • 回流焊峰值温度≤260℃、时间≤10s,防止磁胶性能劣化;
  • 存储远离高温高湿,避免绕组氧化影响性能。

六、总结

FNR5040S332MT是一款专为小功率、低EMI场景设计的磁胶屏蔽贴片电感,凭借小体积、稳定性能和长江微电的品质保障,成为智能穿戴、物联网等领域的优选元件,可有效满足紧凑电路设计的性能与可靠性需求。

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