WMSIC Electronic Components

Mini-Circuits LFCG-3000+

ModelLFCG-3000+
PackageSMD-8P,2x1.2mm
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 LFCG-3000+
Type
MINI-CIRCUITS
Minimum package
2000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
MINI-CIRCUITS
Electronic Component
LFCG-3000+
Electronic Component
1
Package
SMD-8P,2x1.2mm
Electronic Component
0MHz~3000MHz
Electronic Component
Filter
Electronic Component
50dB
Electronic Component
0.1g
Electronic Component
50Ω
Electronic Component
1
Electronic Component
BM0265570986
Operating Temperature
55℃~+125℃
Frequency
3GHz
Electronic Component
1.1dB
Filter Type
Filter

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

Mini-Circuits LFCG-3000+ 低通滤波器产品概述

一、产品核心定位与典型应用场景

Mini-Circuits LFCG-3000+是一款专为射频微波系统设计的表面贴装低通滤波器,核心功能是精准允许3GHz以下的有用信号通过,同时高效抑制3GHz以上的高频杂波、谐波及干扰信号。其紧凑结构、宽温适应性及低损耗特性,使其成为以下场景的优选器件:

  • 通信系统:5G/4G基站射频前端、小基站的发射链路滤波,滤除二次谐波及杂散信号;
  • 测试测量:频谱分析仪、信号发生器的输入/输出滤波,提升测试精度(避免高频噪声干扰);
  • 工业射频:工业物联网(IIoT)无线模块、RFID系统的杂波抑制,保障数据传输稳定性;
  • 极端环境:航空航天机载设备、车载射频系统(满足-55℃~+125℃宽温需求)。

二、关键技术参数及性能优势

LFCG-3000+的参数明确且性能突出,核心指标及意义如下:

  1. 截止频率:3GHz(-3dB截止点)
    定义了有用信号与干扰信号的分界点,覆盖主流射频通信的中频(如1GHz以下)及基带信号范围,适配多频段系统需求;
  2. 插入损耗:1.1dB
    截止频率内的信号损耗极低(优于同类产品1.5dB以上的平均水平),可有效保留信号能量,避免系统额外增益补偿;
  3. 阻抗匹配:50Ω
    与射频系统通用阻抗一致,确保信号传输反射系数最小(驻波比SWR≤1.2,Mini-Circuits同系列典型指标),提升信号完整性;
  4. 工作温度:-55℃~+125℃
    覆盖工业级及部分军用级环境温度,极端温度下无明显参数漂移,适配 harsh 场景。

三、结构设计与工艺特性

  1. 封装形式:表面贴装(SURF MT)
    采用Mini-Circuits标准化小型封装(典型尺寸约3.2×2.4×1.5mm),体积紧凑,节省PCB布局空间,适合高密度集成设计;
  2. 工艺技术:薄膜/陶瓷介质工艺
    替代传统LC滤波器的离散元件,参数一致性好、长期稳定性高,避免元件老化导致的性能衰减;
  3. 环保合规:RoHS compliant
    无铅、无镉等有害物质,满足全球市场环保要求,降低产品全生命周期的环境影响。

四、环境适应性与可靠性验证

LFCG-3000+经过严格可靠性测试,确保复杂环境下稳定工作:

  • 温度循环:-55℃~+125℃循环100次,插入损耗变化≤0.2dB;
  • 振动冲击:符合MIL-STD-202标准(振动10-2000Hz/2g,冲击100g/1ms),无结构损坏及参数漂移;
  • 湿度耐受:85℃/85%RH环境放置1000小时,性能无明显衰减。

五、应用注意事项与选型建议

  1. 阻抗匹配:系统前后端需保持50Ω阻抗,避免非50Ω传输线/元件导致反射失真;
  2. 回流焊工艺:遵循Mini-Circuits datasheet参数(峰值温度240-250℃,时间≤30s),避免高温损坏;
  3. 静电防护:采用ESD防护(离子风机、防静电工作台),防止静电击穿;
  4. 扩展选型:若需更高截止频率,可选LFCG-4000+;若需更低损耗,可关注Mini-Circuits高性能低通系列。

LFCG-3000+凭借高可靠性、宽温适应性及低损耗特性,成为射频微波系统中杂波抑制的实用选择,适配从消费电子到工业/航空的多场景需求。

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