WMSIC Electronic Components

Mini-Circuits HFCN-740+

ModelHFCN-740+
PackageSMD-4P,3.2x1.6mm
BrandMini-Circuits
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

16 specifications

Core information

Product name
Mini-Circuits HFCN-740+
Type
MINI-CIRCUITS
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
MINI-CIRCUITS
Electronic Component
HFCN-740+
Electronic Component
1
Package
SMD-4P,3.2x1.6mm
Electronic Component
Filter
Electronic Component
0.027g
Electronic Component
50Ω
Electronic Component
1
Frequency
1.79GHz
Electronic Component
BM0264880915
Electronic Component
Electronic Component
Electronic Component
3000

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

HFCN-740+ 产品概述

一、产品简介

HFCN-740+ 是 Mini-Circuits 推出的一款表面贴装陶瓷滤波器,设计阻抗为 50Ω,中心频率为 1.79 GHz。器件采用 SMD-4P 封装,外形尺寸 3.2 × 1.6 mm,适合紧凑型射频前端与中频链路的带通/预选滤波要求。该器件基于陶瓷谐振技术,兼顾体积、稳定性与成本,便于大批量生产与自动贴装。

二、主要性能特点

  • 中心频率:1.79 GHz,适配常见无线通信频段附近工作点;
  • 系统阻抗:50Ω,与常见射频链路标准匹配;
  • 封装小型化:SMD-4P,3.2×1.6 mm,便于高密度 PCB 布局;
  • 稳定性好:陶瓷介质对温度与机械振动有较好抵抗,长期漂移小;
  • SMT 可回流焊接,适合自动贴装与高速生产线。

(注:具体插损、带宽、截止衰减等电参数请以厂商 datasheet 为准,设计前建议参考完整 S 参数。)

三、典型应用场景

  • 无线接收机前端的预选或带通信道滤波;
  • 中频(IF)滤波器,适用于射频到基带的中间环节;
  • 手持终端、无线模块、物联网设备的通道隔离与干扰抑制;
  • 射频测试与测量设备中的标准化滤波模块。

四、安装与 PCB 布局建议

  • 保持输入/输出走线短且等宽,确保与 50Ω 传输线阻抗匹配;
  • 在滤波器两端接地层或采用回流地平面,给器件提供低阻抗参考;
  • 尽量在滤波器周围避免大面积金属平面或高频敏感器件,以减少寄生耦合;
  • 若器件两侧需要旁路电容或匹配元件,应靠近滤波器引脚放置并使用短引脚走线;
  • 推荐在关键处使用贯穿孔(vias)将顶层地平面与内/底层地连接,形成良好地围栏以抑制表面波与辐射。

五、测试与验证注意事项

  • 在样机阶段测量完整 S 参数(S11、S21)以确认实际带宽、插损与反射系数;
  • 在目标环境中做温度循环与老化测试,验证频率漂移与稳定性;
  • 对系统级性能(如接收灵敏度、发射邻道泄露)进行验证,确保滤波器满足系统指标;
  • 注意焊接工艺验证:进行标准回流谱的湿热与机械应力试验,确认焊点可靠性。

六、可靠性与封装信息

HFCN-740+ 采用陶瓷材料与金属化引脚,适合工业级环境下的长期使用。封装尺寸 3.2 × 1.6 mm 适配常见贴片生产线。器件符合无铅/RoHS 要求(具体合规信息请参照厂方资料)。为避免机械应力导致陶瓷裂纹,贴片后搬运和测试需注意避免强冲击或弯曲 PCB。

七、选型与采购建议

在量产前建议获取 Mini-Circuits 官方 datasheet 与 S 参数文件(Touchstone),并申请样品进行系统级评估。若系统对插损、带外抑制或功率处理有严格要求,请与厂方确认额定功率、最大输入电平与温度范围。结合目标应用选择合适的滤波器型号或考虑与厂商协商定制参数。

如需进一步的电路匹配建议、PCB 参考布局或基于 HFCN-740+ 的滤波方案仿真支持,我可以协助提供针对性的设计指导。

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