WMSIC Electronic Components

Mini-Circuits LFCN-8400+

ModelLFCN-8400+
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

19 specifications

Core information

Product name
Mini-Circuits LFCN-8400+
Type
MINI-CIRCUITS
Minimum package
3000 个

Technical parameters

Electronic Component
Electronic Component
Electronic Component
MINI-CIRCUITS
Electronic Component
LFCN-8400+
Electronic Component
1
Package
SMD-4P,3.2x1.6mm
Electronic Component
RFFilter
Electronic Component
0.125g
Electronic Component
50Ω
Electronic Component
1
Electronic Component
BM0264480419
Operating Temperature
55℃~+100℃
Frequency
9.1GHz
Electronic Component
1.6dB
Filter Type
Electronic Component
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.

LFCN-8400+ 产品概述

一、产品概述

LFCN-8400+ 为 Mini-Circuits 推出的一款表面贴装低通滤波器,面向高频信号调节与谐波抑制应用。该器件工作阻抗为 50Ω,截止频率 9.1GHz,通带内插入损耗低至 1.6dB,体积小巧(SMD-4P,3.2 x 1.6 mm),并符合 RoHS 要求,可在 -55℃ 到 +100℃ 的温度范围内可靠工作,适合通信、测试与射频前端等紧凑型系统。

二、主要参数

  • 滤波类型:低通(Low Pass)
  • 截止频率:9.1 GHz
  • 阻抗:50 Ω
  • 插入损耗:典型 1.6 dB(通带内)
  • 工作温度:-55℃ 至 +100℃
  • 封装:SMD-4P,尺寸 3.2 x 1.6 mm
  • RoHS:合规
  • 安装方式:表面贴装(Surf MT)

三、性能特点

  • 宽带通带与高速截止:9.1 GHz 的截止点适用于微波频段多数应用,能有效抑制高于截止频率的谐波与干扰。
  • 低插入损耗:通带内典型插入损耗 1.6 dB,保证系统噪声系数不显著增加,利于接收链路的灵敏度维持。
  • 小型化封装:3.2 x 1.6 mm 的 SMD-4P 尺寸,有利于高密度 PCB 布局与体积受限的模块化设计。
  • 宽温度范围:-55℃~+100℃ 的工作温度适配工业级与部分航天/军工环境要求(具体应用需参照工作条件验证)。

四、典型应用场景

  • 射频前端:基带/中频/射频链路中的谐波抑制与上行/下行带外干扰过滤。
  • 无线通信基站与用户终端:在射频放大器、混频器前后用于带外噪声与镜像抑制。
  • 测试与测量设备:示波器、频谱分析仪、信号源的输出或输入端滤波。
  • 雷达、卫星通信与高频成像:对高次谐波或带外干扰进行可靠隔离。

五、封装与安装建议

  • PCB 布局:尽量缩短滤波器到相邻器件的连接线,保持 50Ω 传输线的阻抗连续性;输入/输出处采用微带或带状线并匹配阻抗。
  • 接地处理:SMD-4P 封装要求良好接地以维持性能,滤波器附近应布置充足的接地焊盘与过孔,降低封装与 PCB 之间的封装寄生。
  • 回流焊:建议遵循 Mini-Circuits 的回流焊温度曲线与工艺规程,避免超出器件的最高温度限制以保障长期可靠性。
  • 热管理:在高功率或高温环境中,应评估周边布局的散热条件,必要时增加散热结构或降低驻留功率。

六、环境与可靠性

LFCN-8400+ 设计满足宽温工作需求,适用于工业级温度范围。器件材料与制造工艺符合 RoHS 要求。对于长期可靠性验证,建议在目标应用中进行热循环、振动与加速老化等测试,以确保特定使用环境下的稳定性。

七、选型提示与注意事项

  • 确认截止频率与系统带宽匹配:9.1 GHz 截止适合高频应用,但若系统要求更低或更陡的滚降,应评估其他型号或级联滤波方案。
  • 考虑插入损耗对链路预算的影响:1.6 dB 为典型值,实际损耗受 PCB 工艺与频率变化影响,需在系统链路预算中预留裕量。
  • 评估功率处理能力:如有高功率通过需求,请参考厂方数据手册或联系技术支持获取最大输入功率与饱和指标。
  • 兼容性与替代:Mini-Circuits 系列产品具有丰富的封装与带宽选择,可根据空间、温度与电性能需求选择最合适型号。

如需数据手册、S-参数文件或在特定频段的测量曲线(插入损耗、回波损耗等),建议向 Mini-Circuits 官方或授权代理索取完整技术资料,以便在设计与仿真阶段进行准确验证。

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