WMSIC Electronic Components

TDK MLG1005SR33JT000

ModelMLG1005SR33JT000
Package0402
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 25+

Available for RFQ

Technical data

Product details

20 specifications

Core information

Product name
TDK MLG1005SR33JT000
Type
TDK
Unit
Electronic Component
Minimum package
10000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
TDK
Electronic Component
MLG1005SR33JT000
Electronic Component
1
Package
0402
Electronic Component
SMD Inductor
Electronic Component
±5%
Electronic Component
0.012g
Inductor
330nH
Electronic Component
1
Factor
6@50MHz
Electronic Component
BM0264864248
Current
50mA
Frequency
350MHz
Resistor(DCR)
5.21Ω

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

MLG1005SR33JT000 产品概述

一、产品简介

MLG1005SR33JT000 为 TDK 公司出品的一款贴片电感,封装尺寸为 0402(约 1.0 × 0.5 mm)。额定电感值为 330 nH,公差 ±5%,适用于对尺寸和体积有严格限制的小型电子设备。该器件设计用于高频环境下的滤波、阻抗匹配与旁路等应用,兼顾体积最小化与可接受的频率特性。

二、主要电气参数

  • 电感值:330 nH ±5%
  • 额定直流电流:50 mA(最大连续工作电流)
  • 直流电阻(DCR):5.21 Ω
  • 品质因数(Q):6 @ 50 MHz
  • 自谐振频率(SRF):350 MHz
  • 封装:0402(贴片)

三、性能与特性

  • 中低 Q 值(Q=6@50MHz)表明该电感在 50 MHz 附近具有适中的能量耗散特性,适合需要一定衰减或阻尼的电路(如宽带阻抗匹配、射频阻尼元件、EMI 抑制等),而非用于高 Q 共振回路。
  • 较高的 DCR(5.21 Ω)提示在直流和低频下有明显的串联电阻损耗,应考虑功耗和温升。
  • 自谐振频率 350 MHz 以上时电感趋向于电容性行为,实际作为电感使用时应工作在 SRF 以下频段以保持感性特性。

四、典型应用场景

  • 射频与高速信号链中的匹配/阻抗调谐(在合适频段使用)
  • EMI/EMC 高频噪声抑制与滤波器(尤其需要阻尼特性时)
  • 小型传感器、射频模块、移动设备中占板面积受限的滤波元件
  • 偏置电路中的小电流扼流应用

五、封装与焊接工艺建议

  • 0402 极小封装,推荐采用回流焊工艺,遵循相容的焊膏与回流曲线,避免过高温度与长时间回流以降低元件热应力。
  • 焊盘设计应匹配厂家推荐尺寸,保证足够的焊盘延伸但避免过多铜皮覆盖元件底面,以免影响电感值(金属地/铜皮靠近可能改变电感特性)。
  • 贴装时使用精密取放工具,避免在搬运和回流过程中产生机械应力导致裂纹或接触不良。

六、电路设计与注意事项

  • 使用时保证流过电感的直流电流远低于额定 50 mA,以免过热引起参数漂移或损坏;长时工作应考虑温度上升对 DCR 与电感值的影响。
  • 在设计滤波或匹配网络时,注意该器件的等效串联电阻(ESR/DCR)会影响带宽与插损。若需要高 Q、低损耗的电感,应选择低 DCR、Q 更高的型号。
  • 电感在接近或超过 SRF 时不再表现为纯感性,电路仿真与测量时需考虑元件的寄生电容与频率变化。

七、测试与可靠性

  • 常用 LCR 表在不同频率下测量电感值与 Q 值,必要时做频率扫描以查明 SRF 位置。
  • 对批量器件做 DCR、外观与高温高湿老化测试以评估长期稳定性。
  • 0402 尺寸对机械冲击和振动较敏感,布局时避免位于受力或易受冲击区域。

八、采购与替代建议

  • 采购时确认完整料号(MLG1005SR33JT000)与规格单,关注最小包装、耐焊温等级及合规证书。
  • 若电路对损耗敏感或需更高电流能力,可考虑同尺寸或稍大封装(0603/0805)且 DCR 更低、Q 更高的替代型号;若需要更高频段使用,请选择 SRF 更高的射频级电感。

综上,MLG1005SR33JT000 属于小型化、适用于中频段应用的贴片电感,体积小、适合占板有限的场合,但因 DCR 和 Q 的特性,更适用于需要一定阻尼或低电流场景。在设计与焊接过程中应注意温度管理、PCB 布局及工作频率范围,以发挥器件最佳性能。

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