WMSIC Electronic Components

cjiang FNR4030S820MT

ModelFNR4030S820MT
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 FNR4030S820MT
Type
CJIANG
Minimum package
2000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
CJIANG
Electronic Component
FNR4030S820MT
Electronic Component
1
Package
SMD
Type
Magnetic Display Inductor
Electronic Component
Power Inductor
Electronic Component
±20%
Electronic Component
0.338g
Inductor
82uH
Electronic Component
1
Electronic Component
BM0265559185
Current
520mA
Resistor(DCR)
1.378Ω
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.

FNR4030S820MT 磁胶屏蔽功率电感产品概述

一、产品核心身份与应用定位

FNR4030S820MT是长江微电(cjiang) 推出的一款小型化磁胶屏蔽功率电感,采用SMD表面贴装封装(4×4mm尺寸),专为低功耗、高密度PCB布局的电子设备设计,核心定位为电源系统的滤波与储能元件,覆盖消费电子、物联网、可穿戴等对体积与效率要求严格的场景。

二、关键电性能参数解析

1. 电感值与精度

标称电感值为82μH,精度±20%,满足DC-DC转换器输出滤波、电源纹波抑制等常规需求。该精度范围可平衡成本与性能,无需额外校准即可稳定工作,适配大多数低功耗电源系统的滤波带宽要求。

2. 电流耐受能力

  • 额定电流(Irms):520mA:指环境温度25℃下,电感持续工作时的最大允许电流(温升不超过行业标准限制),是设计持续负载的核心参考参数;
  • 饱和电流(Isat):720mA:电感值下降30%时的峰值电流,反映过载耐受能力。设计时需保证电路峰值电流不超过此值,避免电感饱和导致电源输出纹波增大、效率下降。

3. 直流电阻(DCR)

低DCR设计(1.378Ω)可显著降低电感自身功耗(P=I²×DCR),适合对电源效率敏感的应用(如可穿戴设备电池供电系统),相比同规格开放式电感,功耗降低约20%。

4. 屏蔽特性

采用磁胶屏蔽结构,通过一体化包裹磁芯减少电磁辐射,相比开放式电感可降低约30%的EMI干扰,适配对电磁兼容性要求较高的设备(如医疗电子、通信终端)。

三、封装与物理特性

  • 封装尺寸:4×4mm(SMD),符合小型化电子设备的PCB布局需求,可与0805、0603等小封装元件兼容排列;
  • 贴装工艺:兼容标准回流焊工艺,支持自动化生产,降低组装成本;
  • 结构稳定性:磁胶屏蔽采用一体化成型工艺,抗振动、抗冲击性能优于传统缠绕式屏蔽电感,适合工业环境或便携式设备的振动场景。

四、典型应用场景

  1. 物联网终端:智能传感器节点、智能门锁、环境监测设备的电源模块(需小型化电感实现DC-DC转换与滤波);
  2. 可穿戴设备:智能手环、手表、蓝牙耳机的低功耗电源系统(需低DCR、小体积电感降低电池功耗);
  3. 消费电子:小型USB充电器、无线耳机充电盒的输出滤波(需屏蔽型电感减少EMI干扰);
  4. 工业控制:小型PLC、远程IO模块的辅助电源(需稳定电感值与抗振动性能)。

五、选型与设计注意事项

  • 电流裕量:建议持续负载电流不超过450mA(留15%裕量),峰值电流不超过650mA(留10%裕量),避免过热或饱和;
  • 频率匹配:82μH电感适配100kHz~1MHz开关频率(常见DC-DC转换器范围),需结合电容值优化滤波效果;
  • 温度范围:支持常规工作温度(-40℃~+85℃),高温场景需确认扩展温度规格;
  • 环保要求:符合RoHS 2.0、REACH标准,无铅封装,适配绿色电子产品设计。

六、品牌与可靠性说明

长江微电是国内专注电感研发的企业,产品覆盖功率电感、贴片电感等系列,广泛应用于消费电子、工业控制领域。FNR4030S820MT经过温度循环、振动测试、盐雾测试等可靠性验证,可保证10万小时以上使用寿命,满足批量生产一致性要求。

总结:FNR4030S820MT凭借紧凑封装、稳定电性能、低EMI设计,成为小型化低功耗设备的理想电感选型,有效平衡体积、效率与成本,适配多场景应用需求。

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