WMSIC Electronic Components

Mini-Circuits LFCN-1800+

ModelLFCN-1800+
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 Date code within 2 years

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
Mini-Circuits LFCN-1800+
Type
MINI-CIRCUITS
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
MINI-CIRCUITS
Electronic Component
LFCN-1800+
Electronic Component
1
Package
SMD-4P,3.2x1.6mm
Electronic Component
RFFilter
Electronic Component
30dB;20dB;20dB
Electronic Component
0.15g
Electronic Component
50Ω
Electronic Component
1
Electronic Component
BM0265570976
Operating Temperature
55℃~+100℃
Frequency
2.125GHz
Electronic Component
1dB
Filter Type
Electronic Component
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.

LFCN-1800+ 产品概述

一、产品简介

LFCN-1800+ 是 Mini-Circuits 面向射频前端的表面贴装低通滤波器,设计用于 50Ω 系统的信号调节与谐波抑制。器件体积小、插入损耗低、工作温度范围宽,适合微型化无线通信、测试与测量以及各种射频模块中作为下行/基带滤波或防止高次谐波回入的关键元件。

二、主要参数

  • 滤波器类型:低通(LOW PASS)
  • 截止频率:2.125 GHz
  • 阻抗:50Ω
  • 插入损耗:典型 1 dB(通带内)
  • 工作温度:-55℃ ~ +100℃
  • 合规性:RoHS

三、结构与封装

  • 封装形式:SMD-4P(表面贴装)
  • 尺寸:3.2 × 1.6 mm
  • 安装建议:适用于标准回流焊工艺,建议在 PCB 上保留良好接地旁路与 50Ω 传输线过渡设计以保证最低反射和稳定性能。

四、性能特点

  • 通带低插入损耗,降低系统增益损耗与噪声贡献;
  • 对截止频率以上频段具有良好抑制能力,有效滤除高次谐波与上行干扰;
  • 小型化封装适合高密度贴片布局,便于模块化设计与批量生产;
  • 宽温度范围满足工业级与航天环境下的稳定工作需求。

五、典型应用场景

  • 手机基带及射频前端滤波;
  • 无线基础设施(小基站、室分设备);
  • 测试与测量仪器中的射频通道整形;
  • 放大器、混频器前后端的谐波及带外抑制;
  • 卫星通信、导航及其它高频系统。

六、选型与使用建议

  • 与 50Ω 传输线匹配使用,避免在设计中出现非对称走线或大面积浮空铜皮;
  • 对于严格的相位与群时延要求,建议在初期评估阶段结合实际频段做量测验证;
  • 批量贴装时参考厂商的回流曲线和焊盘推荐图,确保可靠焊接与长期可靠性;
  • 若系统对阻带抑制有更高要求,可并联/级联更高阶滤波方案或与带阻滤波器组合使用。

如需更详尽的 S 参数、插入损耗与回波损耗曲线、以及封装焊盘建议图,请联系 Mini-Circuits 获取完整数据表与评估样片。

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