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FH VHF100505HQ4N7ST
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- FH VHF100505HQ4N7ST
- Type
- FH
- Minimum package
- 10000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- FH
- Electronic Component
- VHF100505HQ4N7ST
- Electronic Component
- 1
- Package
- 0402
- Type
- Inductor; Inductor
- Electronic Component
- SMD Inductor
- Electronic Component
- 0.022g
- Inductor
- 4.7nH
- Electronic Component
- 1
- Factor
- 8@100MHz
- Electronic Component
- BM0234489859
- Current
- 300mA
- Frequency
- 4GHz
- Resistor(DCR)
- 200mΩ
- 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.
VHF100505HQ4N7ST 产品概述
一、产品简介
VHF100505HQ4N7ST 是风华（FH）系列的高频叠层贴片电感，尺寸为0402（公称尺寸对应行业0402封装）。标称电感值为4.7nH，针对VHF/UHF及高频信号链路设计，适用于需要小体积、高频响应的射频匹配、滤波和谐振电路。
二、主要参数
- 电感值：4.7 nH
- 额定直流电流：300 mA（最大持续电流）
- 直流电阻（DCR）：200 mΩ
- 品质因数（Q）：8 @ 100 MHz
- 自谐振频率（SRF）：约 4 GHz
- 类型：叠层高频电感（SMD）
- 封装：0402（贴片）
三、电气特性解析
该器件在100 MHz 时Q≈8，表示在该频段有适度的选择性与损耗控制；DCR 200 mΩ 在小功率、高频应用中产生一定的 I^2R 损耗与插入损耗，应在功率预算中考虑。SRF≈4 GHz 表明在此频率附近电感性逐步失效并转为电容性，设计时需避免在自谐振附近作为线性元件使用。
四、封装与机械特性
0402 尺寸有利于极小化占板面积，适合高密度贴装。作为叠层结构，该电感无明显磁饱和现象，但在直流偏置下电感值会有降额，应参考实际测试曲线进行设计验证。通常以卷带（tape & reel）方式供货，便于贴片机安装。
五、典型应用场景
- 射频阻抗匹配网络（ANT/LNA/PA 前端）
- 高频滤波器与谐振回路（VHF/UHF、低GHz 应用）
- 高频旁路与注入电路中的小值电感元件
- 通信、无线模块、卫星接收与发射前端
六、使用建议与布局要点
- 布局时尽量缩短连接引线，减小寄生电感与电阻。
- 避免将器件放置在大量地铜或大面积金属下面，以减少寄生电容带来的频率偏移。
- 对于关键射频路径，建议在PCB上做样板测试以验证在实际环境下的L、Q与SRF表现。
- 对于接近额定电流的使用场景，应考虑留有一定余量（建议工作电流不超过额定值的70%~80%）以降低温升与参数漂移风险。
七、可靠性与焊接说明
- 建议按业界常规回流焊工艺（遵循JEDEC/IPC 推荐的温度曲线）进行焊接，避免长时间高温暴露。
- 0402 体积较小，焊接时需注意锡膏印刷量与贴装对位，防止偏位或桥连。
- 建议进行常规环境应力与焊接可靠性验证（温循环、湿热、振动测试）以满足终端产品要求。
八、选型与采购建议
在选型时应综合考虑工作频段、插入损耗与允许直流电流。若应用在靠近GHz 频段或需要更高Q值，可考虑Q值更高或SRF更高的对应型号；若需要更大电流承载能力，应选取更大封装或更低DCR的型号。VHF100505HQ4N7ST 适合对体积有严格要求且工作频率在几十MHz到数GHz（避开SRF 附近）范围内的射频应用。采购时请向供应商确认包装形式与最小订购量。
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