WMSIC Electronic Components

FH VHF100505HQ27NJT

ModelVHF100505HQ27NJT
Package0402
BrandFH
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

19 specifications

Core information

Product name
FH VHF100505HQ27NJT
Type
FH
Minimum package
10000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
FH
Electronic Component
VHF100505HQ27NJT
Electronic Component
1
Package
0402
Type
Inductor; Inductor
Electronic Component
SMD Inductor
Electronic Component
±5%
Electronic Component
0.022g
Inductor
27nH
Electronic Component
1
Factor
8@100MHz
Electronic Component
BM0230633546
Current
900mA
Frequency
1.6GHz
Resistor(DCR)
90mΩ

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

VHF100505HQ27NJT 产品概述

一、产品核心参数

VHF100505HQ27NJT 为风华(FH)系列高频叠层贴片电感,标称感值 27 nH,公差 ±5%。典型电气参数(需以厂方规格书为准)包括:额定电流约 900 mA,直流电阻(DCR)约 90 mΩ,品质因数 Q ≈ 8(@100 MHz),自谐振频率(SRF)约 1.6 GHz。封装形式为 0402(约 1.0 mm × 0.5 mm),属于小型化高频电感元件,适用于 VHF 及更高频段电路中的阻抗匹配、谐振与滤波应用。

注:用户提供信息中存在参数矛盾(例如一处记录为 DCR 700 mΩ、额定电流 300 mA)。在设计前请以厂家最终数据表为准,或明确采购型号与规格一致性。

二、工作特性与频率行为

  • 低频下,该 27 nH 电感的感抗在 100 MHz 附近约为 X_L = 2πfL ≈ 17 Ω,因此在 VHF 频段能提供显著的感性阻抗,用于串联阻抗、谐振回路与阻断高频干扰。
  • Q 值 8(@100 MHz)表明在该频率点有中等损耗,实际等效串联电阻 (ESR) 在 100 MHz 附近可估算为 R_esr ≈ X_L / Q ≈ 2.1 Ω,远大于直流 DCR(90 mΩ),说明高频损耗主要来自磁性材料与寄生效应。
  • SRF ≈ 1.6 GHz 表示在此频率附近电感开始失去感性特性并转为容性,使用频带应低于此值以保证稳定的感性行为。

三、热与电流能力估算

以 DCR = 90 mΩ、额定电流 900 mA 为例,电阻发热功耗 P = I^2·R ≈ 0.9^2 × 0.09 ≈ 73 mW。若实际信息为 DCR = 700 mΩ、额定电流 300 mA,则 P ≈ 0.3^2 × 0.7 ≈ 63 mW。两种情形功耗数量级相近,但允许电流和温升限制会不同,务必基于确切规格确定最大通流能力与温升预算,避免超过磁芯饱和或引起过热失效。

四、主要应用场景

  • VHF/UHF 频段的阻抗匹配网络与调谐电路(例如接收器前端、低噪放大器的输入/输出网络)。
  • 高频滤波与共模/差模抑制(作为串联阻抗或谐振器件)。
  • 天线馈线匹配、谐振回路中的电感元件。
  • 高频去耦与信号线阻抗控制(需考虑 Q 与自谐频率限制)。

五、封装与 PCB 布局建议

  • 0402 尺寸体积小,建议 PCB 布局时使走线尽量短,焊盘对称,避免长的引线或刀口式走线引入寄生电感。
  • 不建议在电感下方放置大面积金属或开孔,若需要热散或接地,请按厂方推荐的版图(Pad size)与回流焊规范设计。
  • 对于射频应用,尽量减少器件与地之间的不必要耦合,确保周边地平面连续,且敏感信号线保持合适间距。
  • 采用标准无铅回流工艺时,应遵循制造商的焊接温度曲线与湿敏等级(若有),避免过高峰温导致性能退化。

六、选型与注意事项

  • 确认实际使用频段需低于 SRF;若工作频率接近 SRF,会出现相位与阻抗突变,影响滤波/匹配效果。
  • 对于功率或持续大电流应用,务必以厂方标称的额定电流与温升曲线为准;若供方信息不一致,应要求最新数据手册或样片测试。
  • 若电路对损耗敏感(如低噪放、谐振回路),应关注 Q 值及其随频率的变化;若更高 Q 需求,应考虑不同材质或更大尺寸的电感元件。
  • 询价/下单时请核对完整型号(VHF100505HQ27NJT)与标签,避免将参数接近但额定电流或 DCR 不同的零件混淆。

七、结论与建议

VHF100505HQ27NJT 是一款面向 VHF 高频应用的小型叠层贴片电感,适合空间受限且需在 100 MHz 附近提供若干欧姆感抗的场合。由于资料中出现 DCR 与额定电流的两套不同数据(90 mΩ/900 mA 与 700 mΩ/300 mA),建议在设计与采购前向供应商索取最新数据手册并确认样片测试结果,确保电流、温升与频率特性满足系统可靠性与性能要求。若需,我可以根据您给出的确切数据表进一步给出 PCB 封装图、等效电路模型及仿真参数建议。

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