WMSIC Electronic Components

TDK MLP2012S3R3MT0S1

ModelMLP2012S3R3MT0S1
Package0805
BrandTDK
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

20 specifications

Core information

Product name
TDK MLP2012S3R3MT0S1
Type
TDK
Unit
Electronic Component
Minimum package
4000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
TDK
Electronic Component
MLP2012S3R3MT0S1
Electronic Component
1
Package
0805
Type
Inductor
Electronic Component
SMD Inductor
Electronic Component
±20%
Electronic Component
0.042g
Inductor
3.3uH
Electronic Component
1
Electronic Component
BM0258717562
Current
900mA
Resistor(DCR)
247mΩ
Electronic Component
Electronic Component

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

MLP2012S3R3MT0S1 产品概述

一、产品简介

MLP2012S3R3MT0S1 是 TDK 推出的一款叠层屏蔽功率电感,封装为 0805(2012 公制),标称电感 3.3 μH,公差 ±20%,额定电流 0.9 A。该器件采用铁氧体材料并作屏蔽处理,适合表面贴装工艺,面向开关电源滤波、EMI 抑制和高频旁路应用。单位体积磁通密度与寄生电阻在同级别产品中具有竞争力,适合空间受限的移动和消费电子及工业控制场合。

二、主要电气与机械参数

  • 电感值:3.3 μH(±20%)
  • 额定电流(Irms):0.9 A(连续工作建议不超额定值)
  • 直流电阻(DCR):约 0.19 Ω(典型)——不同批次或资料中可能给出 0.247 Ω 为上限,选型时以最新数据手册为准
  • 测试频率:常见在 MHz 级别(如 2 MHz)下的特性良好
  • 封装:0805(2012 公制),适配标准 SMT 回流工艺
  • 结构:多层叠层铁氧体,屏蔽结构降低磁串扰

(注:上述数值基于常见型号规格,实际参数请以 TDK 官方数据手册为准。)

三、典型性能与计算参考

  • 高频阻抗(理想值):在 2 MHz 时,|Z| ≈ ωL = 2π·2e6·3.3e-6 ≈ 41.5 Ω(实际因磁滞和损耗有所降低)。
  • 铜损估算:以 DCR = 0.19 Ω、I = 0.9 A,铜损 P ≈ I^2·R = 0.9^2·0.19 ≈ 0.154 W(若采用 0.247 Ω 则约 0.20 W)。散热与温升需考虑在内并适当留裕。
  • 饱和与直流偏置:额定电流附近可能出现电感下降,设计应留有裕量以避免在偏置条件下电感值超出允许范围。

四、应用场景

  • 开关电源(降压型 DC-DC)输出滤波或输入滤波
  • EMI/射频干扰抑制、共模/差模噪声衰减环节
  • 移动设备、电池供电设备中的小型功率滤波
  • 工业控制、小型通讯设备中的高密度 PCB 布局场合

五、优点与选用建议

  • 小体积、低外泄磁通:利于高密度布线与器件并排布局
  • 适合高频工作:铁氧体材料在 MHz 频段表现良好
  • 易于 SMT 流程:兼容无铅回流焊 选型时重点关注:实际工作电流与额定电流的关系、DCR 对效率的影响、在工作频率下的实际阻抗与损耗、以及温升与可靠性边界。若对电感精度、温漂或直流偏置性能有更高要求,可考虑更低公差或专用功率电感系列。

六、PCB 与焊接注意事项

  • 尽量将电感放置在开关节点附近,减小环路面积以降低 EMI。
  • 引脚走宽铜厚足够以降低附加 DCR;必要时靠近器件处加热沉层或散热铜箔。
  • 推荐标准无铅回流曲线(请参考制造商回流规范),避免超过峰值温度并控制回流时间。
  • 焊盘设计参照 0805 标准焊盘,焊膏印刷需均匀,回流后避免机械应力集中。

七、可靠性与储存

  • 常规为 RoHS 兼容设计,但具体环保合规信息以数据手册和合格证为准。
  • 存储环境避免高湿高温,防止长期潮湿导致锡层氧化或包装变形。
  • 运输和贴装过程中避免强烈机械冲击或施加过大弯曲力。

八、常见选型陷阱与建议

  • 不要仅以电感值决策:对开关电源设计而言,DCR 与饱和特性往往决定效率与温升。
  • ±20% 公差较宽,若电路对谐振或截止频率敏感,应选用公差更紧的型号或在仿真中加入容差考量。
  • 高频应用时注意材料的介质损耗与自谐频率(SRF),必要时向厂商咨询频率特性曲线。

如果需要,我可以根据您的具体电路(工作频率、峰值电流、允许温升、可用 PCB 面积)给出更精确的选型建议与热损耗估算。

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