WMSIC Electronic Components

muRata LQP03TN3N5B02D

ModelLQP03TN3N5B02D
Package0201
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 26+

Available for RFQ

Technical data

Product details

20 specifications

Core information

Product name
mu Rata LQP03TN3N5B02D
Type
MURATA
Unit
Electronic Component
Minimum package
15000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
MURATA
Electronic Component
LQP03TN3N5B02D
Electronic Component
1
Package
0201
Type
Inductor
Electronic Component
SMD Inductor
Electronic Component
0.008g
Inductor
3.5nH
Electronic Component
1
Factor
14@500MHz
Electronic Component
BM0257270904
Current
450mA
Frequency
7GHz
Resistor(DCR)
250mΩ

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

LQP03TN3N5B02D 产品概述

一、产品简介

LQP03TN3N5B02D 是 muRata(村田)系列贴片厚膜电感,封装尺寸为 0201,标称电感值为 3.5 nH。该器件针对高频微带与射频应用进行了优化,具有较高的自谐振频率和适用于 GHz 级频段的品质因数,适合空间受限且对高频性能有要求的电子设计。

二、主要参数

  • 电感值:3.5 nH
  • 额定直流电流:450 mA(不引起显著电感下降的连续电流)
  • 直流电阻 (DCR):约 250 mΩ
  • 品质因数(Q):14 @ 500 MHz
  • 自谐振频率(SRF):约 7 GHz
  • 类型:厚膜电感(薄膜/厚膜工艺)
  • 封装:0201(超小型贴片封装)
  • 品牌:muRata(村田)

三、特性与优势

  • 高频性能良好:SRF 约 7 GHz,Q 值在 500 MHz 时约为 14,适合射频匹配、滤波和阻抗调节等高频电路。
  • 超小封装:0201 封装适用于高密度 PCB 布局与微型化产品,可节省空间并支持细微布局的设计需求。
  • 适中额定电流:450 mA 的额定电流可满足多数小功率射频开关、滤波或去耦应用的直流通过需求。
  • 稳定的厚膜工艺:厚膜电感具有良好的制造一致性和焊接可靠性,适合标准 SMT 贴装工艺与回流焊流程。

四、典型应用场景

  • 射频匹配网络与阻抗调节(无线通信模块、RF 前端)
  • 高频滤波器与陷波网络(带通/带阻、入射和输出滤波)
  • PCB 上的 EMI 抑制与共模/差模滤波(配合电容形成小尺寸滤波单元)
  • 高频信号链中的阻抗补偿或去耦(射频放大器输入输出处)
  • 高密度移动设备、蓝牙/Wi‑Fi/低功耗无线终端等对体积敏感的产品

五、封装与机械特性

  • 0201 超小封装便于在高密度 PCB 上节省空间,但对焊接、取放及检修提出更高要求。
  • 建议在生产中采用兼容 0201 的贴片与回流焊工艺,注意贴装定位精度与锡膏量控制。
  • 由于体积极小,焊盘设计、焊膏印刷的均一性以及回流曲线都会对可靠性产生较大影响,请在生产验证时重点评估。

六、设计与使用建议

  • 布局:将该电感尽可能靠近要调谐或去耦的器件放置,缩短连接走线以降低寄生电感/电阻影响;在射频应用中优先确保信号路径的最短与最直接。
  • 地平面:若电感用于滤波或与地参考有关的网络,合理规划地平面切割与回流路径,避免地回路引入不必要的寄生。
  • 匹配网络:在做射频匹配时,应结合电路仿真(S 参数)与实际测量校准电感对目标频段的影响;实际工作频率接近或超过 Q 值峰值时,注意频率依赖特性。
  • 温度与电流:虽然额定电流为 450 mA,长时间大电流工作会引起器件温升并可能影响电感与阻值,设计时留有裕量并评估热稳定性。

七、测试与验证要点

  • 在目标电路板上进行驻波比(S11)、插入损耗(S21)等射频特性测试,验证在工作频带内的表现与仿真一致性。
  • 进行直流偏流(DC bias)测试,评估工作电流对电感值的影响,尤其在高频小电感值下偏流效应更明显。
  • 做温度循环与回流焊可靠性验证,确保 0201 封装在实际生产与使用环境下的机械与电气稳定性。
  • 对 DCR、Q 值与 SRF 做批次一致性测试,以保证量产稳定性。

八、选型与采购注意

  • 在系统设计中如需在更高电流或更低直流电阻的条件下工作,应考虑选用封装更大或专为电源应用设计的低 DCR 电感。
  • 若目标频段接近或超过 7 GHz,应确认 SRF 与器件寄生参数对电路的具体影响,必要时在更高频端选择专用射频电感或传输线元件。
  • 0201 封装对生产能力有较高要求,请与生产单位确认贴片机、回流焊及 AOI 的能力与工艺参数。

总结:LQP03TN3N5B02D 是一款面向高频应用、体积极小的厚膜贴片电感,电感值 3.5 nH、SRF≈7 GHz 与 450 mA 的额定电流使其在射频匹配与紧凑滤波网络中具有较高实用性。在实际使用中,重视 PCB 布局、焊接工艺与射频测试校准,可以发挥其最佳性能。

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