WMSIC Electronic Components

Chilisin BMRA000404202R2MA1

ModelBMRA000404202R2MA1
PackageSMD,4.1x4.6mm
Brandchilisin
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
chilisin BMRA000404202R2MA1
Type
CHILISIN
Minimum package
2000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
CHILISIN
Electronic Component
BMRA000404202R2MA1
Electronic Component
1
Package
SMD,4.1x4.6mm
Type
Magnetic Display Inductor
Electronic Component
Power Inductor
Electronic Component
±20%
Electronic Component
0.063g
Inductor
2.2uH
Electronic Component
1
Electronic Component
BM0265002395
Current
3A
Resistor(DCR)
58mΩ
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.

BMRA000404202R2MA1 功率电感产品概述

BMRA000404202R2MA1是奇力新(Chilisin)推出的一款磁胶屏蔽贴片功率电感,专为中小功率电源电路的储能、滤波及EMI抑制设计,具备小体积、低损耗、高可靠性等核心优势,可满足消费电子、通信设备等领域的高密度布局需求。

一、产品核心特性定位

该电感聚焦高集成度电源系统的核心需求,核心特性可概括为:

  1. 磁胶屏蔽结构:有效降低电磁干扰(EMI),适配对噪声敏感的电路;
  2. 小封装设计:4.1×4.6mm SMD封装,节省PCB空间,支持高密度布局;
  3. 低损耗性能:58mΩ低直流电阻(DCR),减少导通损耗与发热;
  4. 电流匹配性:额定电流(Irms)与饱和电流(Isat)均为3A,额定工况下无电感值衰减风险;
  5. 宽精度覆盖:±20%电感精度,满足常规电源设计的参数容错需求。

二、关键技术参数解析

1. 电感值与精度

电感值为2.2μH ±20%,属于中低电感量范畴,适配DC-DC降压转换器(如5V→3.3V、12V→5V)的储能需求。±20%的精度覆盖了生产一致性波动,在电源滤波、纹波抑制场景下无需额外校准,降低设计复杂度。

2. 电流特性

  • 额定电流(Irms=3A):指电感在25℃环境下连续工作时,温升不超过30K的最大电流,确保长期稳定运行;
  • 饱和电流(Isat=3A):指电感值下降30%时的峰值电流(短路或瞬态工况)。此处Irms与Isat相等,说明额定连续电流下电感未进入饱和区,避免因电感值衰减导致电源输出不稳定,可靠性显著提升。

3. 直流电阻(DCR=58mΩ)

低DCR是功率电感效率的核心指标:58mΩ的电阻值意味着在3A电流下,导通损耗仅为(I^2R=3^2×0.058=0.522W),发热控制优异,可简化散热设计(无需额外散热片)。

4. 屏蔽类型

采用磁胶屏蔽结构:相比非屏蔽电感,磁胶包裹磁芯可大幅减少漏磁,降低对周边电路的电磁干扰;同时磁胶的柔韧性提升了电感的抗振动、抗冲击能力,适配回流焊等表面贴装工艺。

三、封装与结构设计

该电感采用4.1×4.6mm SMD贴片封装,符合紧凑尺寸要求,厚度通常≤2mm(具体需结合 datasheet),适配高密度PCB布局。内部结构为:

  • 高磁导率磁芯:提升电感储能密度;
  • 多层绕线:减少线圈电阻,进一步降低损耗;
  • 磁胶包裹:屏蔽漏磁+结构加固,兼顾EMI与可靠性。

四、典型应用场景

基于参数与特性,该电感适用于以下场景:

  1. 消费电子:手机、平板、笔记本电脑的DC-DC降压模块(如CPU供电、内存供电);
  2. 通信设备:路由器、交换机、基站的电源滤波电路(抑制纹波、减少EMI);
  3. 小型工业设备:低功率电机驱动(如小型机器人关节)、LED驱动电源(恒流/恒压输出);
  4. 车载辅助电路:若满足汽车级温度范围(需确认具体型号),可用于车载充电器、中控屏电源模块。

五、品牌与可靠性保障

奇力新作为全球知名电感制造商,具备成熟的生产工艺与质量管控体系:

  • 符合RoHS、REACH等环保标准,满足欧盟、北美市场准入要求;
  • 产品经过温升测试、饱和电流测试、振动测试(10G/20-2000Hz) 等多项可靠性验证;
  • 批量生产一致性好,电感值、DCR、电流特性的离散度低,适配大规模量产需求。

总结

BMRA000404202R2MA1以小体积、低损耗、高EMI抑制为核心优势,精准匹配中小功率电源系统的设计需求,尤其适合消费电子、通信等对空间与噪声敏感的领域。其额定电流与饱和电流的匹配设计,进一步提升了应用稳定性,是高密度电源布局的优选电感方案。

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