WMSIC Electronic Components

muRata DFE252010P-2R2M=P2 DFE252010P

ModelDFE252010P-2R2M=P2
Package1008
BrandmuRata
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 Date code within 2 years

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
mu Rata DFE252010P-2R2M=P2
Type
MURATA
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
MURATA
Electronic Component
DFE252010P-2R2M=P2
Electronic Component
1
Package
1008
Electronic Component
Power Inductor
Electronic Component
±20%
Electronic Component
0.012g
Inductor
2.2uH
Electronic Component
1
Electronic Component
BM0227307929
Current
2.6A
Resistor(DCR)
115mΩ
Electronic Component
Electronic Component
Electronic Component
3000
and Current(Isat)
2.6A

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

DFE252010P-2R2M=P2 产品概述 — muRata 功率电感(2.2 µH,2.6 A)

一、主要规格概述

  • 型号:DFE252010P-2R2M=P2(muRata/村田)
  • 电感值:2.2 µH(公差 ±20%,实际范围约 1.76 µH ~ 2.64 µH)
  • 额定电流:2.6 A
  • 饱和电流(Isat):2.6 A(在此电流下电感量降至规定比例)
  • 直流电阻(DCR):约 115 mΩ
  • 封装:1008(表面贴装,适用于高密度 PCB 布局)
  • 产品类型:功率电感,适用于开关电源与功率滤波

二、性能与设计要点

  • 高电流能力:本器件的额定电流与饱和电流相当,适合中等电流的点对点供电和降压(buck)电路,但在长期运行中应考虑余量以避免接近饱和区。
  • 损耗与温升:按 I^2·R 估算,在额定电流 2.6 A 下的直流损耗约为 0.78 W(2.6^2 × 0.115 Ω),表明长期满载工作会产生明显发热,应在热设计中留出散热空间或降低工作电流以控制温升。
  • 直流偏置特性:由于铁芯和磁路特性,实际电感随直流偏置电流会衰减,建议在目标电流下做实测,确认工作频率和纹波电流下的有效电感值满足电路设计需求。
  • 尺寸与布局:1008 SMD 封装有利于表面贴装自动化,但电感附近应尽量减少热源与强磁性器件干扰,布线应保证大电流回路最短、最宽以降低寄生电阻和环路面积。

三、典型应用场景

  • 开关稳压电源(降压/升压变换器)的储能与滤波电感
  • 点对点(POL)电源模块与电源管理 IC 的输出滤波
  • 高密度便携设备与工业控制的功率滤波与纹波抑制
  • 各类需要中等电流承载与体积受限的电源解决方案

四、选型与使用建议

  • 留有电流裕度:由于 Isat 与额定电流等同,建议按 70%~80% 的安全裕度选用或对工作点做充分评估,避免在饱和附近长期工作。
  • 验证温升与效率:在目标应用的实际纹波电流和工作频率下测量温升与效率,必要时选择 DCR 更低或电流等级更高的器件以降低损耗。
  • 测试直流偏置下的 L(f) 曲线:不同电路拓扑下的直流偏置会影响电感量,务必在实际偏置电流和温度条件下确认电感性能。
  • 焊接与可靠性:遵循 muRata 推荐的回流焊温度曲线与储存处理要求,防止过热或受潮影响产品可靠性。

五、包装与采购提示

  • 型号末尾的 “=P2” 常表示卷带包装与供料形式,便于贴片生产线直接使用;具体包装、出厂批次、可用性及最小订购量请以厂商或授权分销商提供的物料清单和包装说明为准。
  • 购买前建议获取最新 Datasheet,确认在目标环境(温度、频率、纹波、电流)下的电感曲线、饱和特性及机械尺寸,以保证设计的鲁棒性。

小结:DFE252010P-2R2M=P2 为一款面向中等电流、体积受限应用的 SMD 功率电感,适用于多种开关电源与滤波场景。设计时重点关注直流损耗(DCR)、直流偏置导致的电感衰减以及热管理,以确保长期稳定可靠运行。若需更详细的频率响应、热阻与机械尺寸信息,请参照 muRata 官方 Datasheet 或联系供应商获取最新资料。

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