WMSIC Electronic Components

Sunlord MPL1608S3R3MHT

ModelMPL1608S3R3MHT
Package0603
BrandSUNLORD
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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
Sunlord MPL1608S3R3MHT
Type
SUNLORD
Minimum package
4000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
SUNLORD
Electronic Component
MPL1608S3R3MHT
Electronic Component
1
Package
0603
Type
Inductor
Electronic Component
SMD Inductor
Electronic Component
±20%
Electronic Component
0.027g
Inductor
3.3uH
Electronic Component
1
Electronic Component
BM0257689386
Current
700mA
Frequency
40MHz
Resistor(DCR)
350mΩ
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.

MPL1608S3R3MHT 产品概述

一、产品概要

MPL1608S3R3MHT 是顺络(Sunlord)的一款贴片叠层电感,封装为 0603(国际尺寸 1608),额定电感值 3.3 µH,公差 ±20%。该器件属于小尺寸、高密度电路用的多层陶瓷叠层电感,直流电阻(DCR)约为 350 mΩ,额定直流电流 700 mA,自谐振频率(SRF)约 40 MHz。适用于体积受限且对电感值要求不高的滤波和能量传输链路。

二、电气特性要点

  • 电感值:3.3 µH,±20%(实际值可能在约 2.64–3.96 µH 之间)。
  • 额定电流:700 mA,超过此电流电感值会因磁饱和或温升而明显下降。
  • 直流电阻:350 mΩ,导通损耗与压降需在电源设计中考虑(在 700 mA 下功耗约 0.17 W,压降约 0.245 V)。
  • 自谐振频率:≈40 MHz,低于此频率以电感性为主,高于此频率器件呈容性行为,设计时应确保工作频段在 SRF 之下或对高频谐波有充分余量。
  • 类型:叠层电感,体积小,适合表面贴装工艺(SMT)。

三、典型应用场景

  • 低功率、低频的电源滤波(输入/输出滤波、去耦)与 EMI 抑制。
  • 便携设备中小电流的降压/升压型 DC-DC 拓扑滤波(适用于开关频率远低于 40 MHz 的场合)。
  • 信号链路中用于阻抗匹配、低频隔离或谐振网络(注意公差较大,适合容错设计)。
  • 智能穿戴、物联网节点、小型传感器电源模块等对体积敏感的应用。

四、PCB 布局与焊接注意

  • 尽量缩短与相连电源走线,减少附加串联寄生电感与电阻,保证滤波效果。
  • 垫片与焊盘应保证稳定的焊接接触,建议预留足够的焊盘长度以利于焊料流动并减小热阻。
  • 贴片方向应配合电流方向和热散布路径,避免热集中在单点。
  • 推荐采用标准 SMT 回流焊工艺,遵循厂商的回流曲线与湿度敏感级别(MSL)说明以保证可靠性。

五、热与电流管理

  • 由于 DCR 较高,持续高电流会导致显著发热,应在应用中进行热仿真或实际测量。
  • 建议在设计中对额定电流做适当降额(例如 70–80%),以保证长期稳定性与电感值保持。
  • 如果系统需要长时间接近或超过 700 mA,应选用更大封装或低 DCR 的电感型号以降低功耗及温升。

六、测量与验证建议

  • 测量电感值时注明测试频率(常用 100 kHz 或 1 MHz),并在不同直流偏置下验证电感随电流的变化曲线。
  • 检查 SRF 时使用网络分析仪扫描到高频,确认在工作带宽内表现为电感性。
  • 在最终 PCB 上进行温升与效率测试,评估 DCR 导致的压降与系统整体影响。

七、选型建议与替代

  • 若系统对电感精度、温升或纹波损耗敏感,建议选择公差更小(±10% 或 ±5%)、DCR 更低或更大封装(如 0805、1210)的型号。
  • 对于开关频率接近或高于 10 MHz 的设计,应确认 SRF 的裕量,必要时改用有更高 SRF 的电感或利用磁性滤波器结构。
  • 在功率要求升高时,优先考虑低 DCR、高额定电流的电感以降低损耗。

总结:MPL1608S3R3MHT 以其小尺寸和 3.3 µH 的电感值,适合体积受限、低至中等电流的滤波和去耦场景。设计时需重点关注直流电阻引起的功耗、工作电流的降额以及 SRF 对高频行为的影响,按这些要点调整布局与选型可获得稳定可靠的实际表现。

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