WMSIC Electronic Components

TDK MLZ1608DR47DT000

ModelMLZ1608DR47DT000
Package0603
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 Date code within 2 years

Available for RFQ

Technical data

Product details

20 specifications

Core information

Product name
TDK MLZ1608DR47DT000
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
MLZ1608DR47DT000
Electronic Component
1
Package
0603
Type
Inductor
Electronic Component
SMD Inductor
Electronic Component
±20%
Electronic Component
0.027g
Inductor
470nH
Electronic Component
1
Electronic Component
BM0254006305
Current
500mA
Frequency
25MHz
Resistor(DCR)
420mΩ

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

MLZ1608DR47DT000 产品概述

一. 产品简介

MLZ1608DR47DT000 是 TDK 推出的叠层电感,属于 MLZ 系列,采用 0603(1608 公制)超小型封装,具有磁屏蔽结构,适合在对空间与 EMI 抑制有严格要求的小型电子设备中用作电源滤波与去耦。其标称电感值为 0.47 μH(470 nH),公差 ±20%,自谐振频率约 25 MHz,可在 MHz 级频段保持有效电感特性。

二. 主要电气参数

  • 标称电感值:470 nH(0.47 μH)
  • 公差:±20%
  • 额定电流(Irated):500 mA(最大连续工作电流,维持温升与参数稳定)
  • 饱和电流(Isat):400 mA(磁通密度开始显著下降的位置,超出后电感值快速下降)
  • 直流电阻(DCR):典型 420 mΩ(0.42 Ω);实测或批次差异可能导致 DCR 在 0.42–0.55 Ω 区间上下波动
  • 自谐振频率(SRF):约 25 MHz
  • 类型:叠层铁氧体磁芯,屏蔽型(Power Shielded Multi-Layer)
  • 封装代码:0603(1608 metric)

三. 关键特性与优势

  • 小尺寸高密度:0603 封装适用于空间受限的移动设备、可穿戴与便携终端的电源路径与滤波网络。
  • 屏蔽设计:磁屏蔽结构降低对附近敏感电路的磁耦合与 EMI 辐射,有利于高密度 PCB 布局。
  • 宽频带工作:25 MHz 左右的自谐频率使其在高于低频电源滤波的应用中仍保持电感性响应,适合开关电源高频噪声抑制。
  • 合理的电流能力:额定 500 mA 的连续电流适合中低功率供电路径,饱和电流 400 mA 提示在高负载瞬态下应注意电感值下降的影响。
  • 叠层结构:相对于绕线电感更适合自动化贴装与高精度一致性生产。

四. 典型应用场景

  • 开关稳压器的输出滤波与能量储存(低功率 DC–DC 降压/升压)
  • 电源去耦与高频噪声滤波(输入电源滤波、L-C 滤波器单元)
  • 移动设备、蓝牙/无线模块、电池管理系统(BMS)等对空间与电磁兼容有严格要求的电路
  • EMI 抑制:在敏感模拟或射频前端附近用于降低共模/差模噪声耦合(结合合适的布局与旁路电容)

五. 设计与选型建议

  • 电流裕量:为避免电感饱和与过大温升,建议在选型时将连续工作电流控制在额定电流的 70–80% 以下;若电路中存在较大瞬态电流,应考虑更高 Isat/Irated 的型号或并联设计(但并联需注意 DCR 与均流问题)。
  • DCR 与效率:0.42 Ω 左右的 DCR 在低压大电流场景会产生明显功耗(P = I^2·R),在效率关键应用中要评估功耗与温升。
  • 自谐频率与滤波带宽:SRF ≈ 25 MHz 表明在高于此频率时电感特性衰减,若需抑制更高频段噪声,可与高频陶瓷电容配合形成有效滤波网络。
  • 布局注意:靠近噪声源(例如开关节点)放置电感可以缩短回流路径;屏蔽结构降低对周围器件的耦合,但仍建议避免敏感 RF 芯片的近距离并行走线。
  • 焊接工艺:遵循元器件制造商推荐的回流曲线与 IPC 焊接规范(例如 J-STD-020),避免超温和长时间高温造成电感性能退化。0603 尺寸元件在手工焊接时也需注意热冲击与焊点可靠性。

六. 环境与可靠性

  • 温度系数与工作温度范围:叠层铁氧体电感在高温时可能出现电感值小幅漂移;具体工作温度上限应参考厂家数据手册并考虑在高温工况下的电流降额策略。
  • 机械可靠性:0603 小型封装对震动与热循环较为敏感,推荐在 PCB 设计中采用合适的固定与减振措施,尤其在工业或汽车等苛刻环境下。
  • 长期稳定性:屏蔽型叠层结构在长期使用中一般保持良好一致性,但需关注焊接与回流过程中的应力。

七. 选购与替代方案

  • 若电路需要更低 DCR 或更高电流能力,可选择更大封装或同系列更大电流规格的 MLZ 器件,或考虑绕线型功率电感。
  • 在需要更高自谐频率或更小电感值偏差时,可向 TDK 或其他厂商索取精度更高、公差更窄的型号数据表与样品做实际测试验证。

总结:MLZ1608DR47DT000 是一款适合中低功率、空间受限且需要 EMI 抑制的叠层屏蔽电感。其 470 nH、500 mA 的规格在移动设备与便携电源滤波应用中具有良好性价比;选用时需综合考虑 DCR、饱和特性与实际工作电流,遵循合理的降额与 PCB 布局规则以确保系统稳定可靠。

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