WMSIC Electronic Components

HRE CGA0402X7R471K500GT

ModelCGA0402X7R471K500GT
Package0402
BrandHRE
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 26+

Available for RFQ

Technical data

Product details

18 specifications

Core information

Product name
HRE CGA0402X7R471K500GT
Type
0402
Minimum package
10000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
HRE
Electronic Component
CGA0402X7R471K500GT
Electronic Component
1
Electronic Component
470pF
Package
0402
Electronic Component
SMD Capacitor(MLCC)
Electronic Component
±10%
Electronic Component
0.013g
Electronic Component
10
Electronic Component
BM0264743638
Electronic Component
X7R
Voltage
50V
Electronic Component
Electronic Component
Electronic Component
10000

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

CGA0402X7R471K500GT 贴片多层陶瓷电容(MLCC)产品概述

一、产品核心身份与定位

CGA0402X7R471K500GT是HRE芯声推出的通用型贴片多层陶瓷电容(MLCC),聚焦中低压电路的滤波、耦合与去耦场景。其命名规则清晰传递核心参数:

  • CGA:HRE MLCC封装系列标识;
  • 0402:英制封装尺寸(对应公制1005:1.0mm×0.5mm×0.5mm典型厚度);
  • X7R:温度系数(-55℃~+125℃,容值变化≤±15%);
  • 471:容值标识(47×10¹=470pF);
  • K:精度±10%;
  • 500:额定直流电压50V;
  • GT:通用等级与包装标识。

产品定位为高密度电路的成本优化型电容,适配消费电子、工业控制等多领域,平衡小型化与性能稳定性。

二、关键技术参数深度解析

1. 容值与精度

标称470pF(471),精度±10%(K档)——满足80%以上通用电路的容值需求(如电源滤波、信号耦合),无需为高精度场景支付额外成本,同时避免容值偏差对电路功能的影响。

2. 额定电压

50V直流额定电压——适用于5V/12V电源电路、10V以下信号处理模块,覆盖消费电子(手机、平板)与工业控制(PLC)的主流电压范围;交流场合需注意峰值电压降额(Vp=√2×Vrms≤50V)。

3. 温度系数X7R

对比Y5V(容值变化±20%以上)、C0G(高精度但成本高),X7R的核心优势是宽温稳定性:

  • 温度范围:-55℃~+125℃(工业级标准);
  • 容值变化:≤±15%(行业规范);
  • 适用场景:适配户外设备、车载辅助电路(非安全关键级)等宽温环境。

4. 封装尺寸0402

公制1005封装(1.0mm×0.5mm)是目前消费电子的主流小型化封装,支持PCB板高密度布局(如智能手机主板可集成数千颗),同时适配自动化贴装设备,提升生产效率。

三、封装与工艺特性

1. 多层陶瓷结构

采用叠层印刷工艺:将陶瓷介质(钛酸钡基)与镍内电极交替叠层,烧结后形成一体化结构——无引线设计降低ESR(等效串联电阻)与ESL(等效串联电感),适合高频信号传输(1GHz以下)。

2. HRE工艺管控

  • 低损耗陶瓷材料:减少高频信号的能量损耗,避免信号失真;
  • 内电极均匀性:控制内电极厚度与间距偏差≤5%,确保批次间容值一致性;
  • 抗振动设计:陶瓷与电极结合强度高,适配便携设备(手环、耳机)的振动场景(振动频率20Hz~2000Hz,加速度≤15g)。

四、典型应用场景

1. 消费电子

  • 手机/平板:射频前端滤波、电源模块去耦、摄像头传感器耦合;
  • 智能穿戴:手环/手表的心率传感器信号滤波、电池管理电路;
  • 音频设备:蓝牙耳机的音频解码电路滤波、音箱的分频电容。

2. 工业控制

  • PLC(可编程逻辑控制器):数字信号输入滤波、电源输入去耦;
  • 变频器:辅助电路的电压耦合、电流检测滤波;
  • 工业传感器:温度/压力传感器的信号调理电路。

3. 通信设备

  • 路由器/交换机:高速以太网信号滤波、电源模块稳压;
  • 基站射频单元:低噪声放大器(LNA)的匹配电容、滤波器耦合。

五、性能优势与可靠性

1. 宽温稳定性

X7R特性确保-55℃~+125℃范围内容值波动小,避免极端温度下电路功能失效(如冬季户外设备、夏季车载显示屏)。

2. 低损耗高频性能

典型ESR值≤5mΩ(1kHz),ESL≤0.5nH——适合1GHz以下高频电路,减少信号反射与损耗,提升射频性能。

3. 高可靠性

  • 无液态电解质:不存在漏液、干涸问题,寿命≥10万小时(25℃/50V);
  • 抗机械应力:陶瓷结构抗弯折、抗冲击,避免PCB板形变导致的电容开裂。

4. 成本效益

对比C0G高精度电容(成本高30%以上),X7R在保证基础稳定性的前提下,降低终端产品的被动元件成本,适合中低端至中端市场。

六、选型与使用注意事项

1. 电压匹配

  • 直流工作电压≤50V;
  • 交流场合:Vp=√2×Vrms≤50V,高湿度(>85%RH)或高温(>125℃)场景需降额20%(如实际工作电压≤40V)。

2. 焊接工艺

  • 回流焊温度曲线:峰值温度230℃~250℃,时间≤60s(避免热冲击导致陶瓷开裂);
  • 手工焊接:温度≤350℃,焊接时间≤3s(仅用于维修场景)。

3. 静电防护

MLCC为静电敏感元件(ESD等级2kV~4kV),生产/存储需:

  • 佩戴防静电手环;
  • 使用防静电包装(铝箔袋+防潮剂);
  • 贴装设备接地良好。

4. 环境适应性

  • 避免长期暴露在高湿度(>90%RH)环境中(需密封包装存储);
  • 避免机械应力(如过度弯折PCB板)导致电容内部开裂。

综上,CGA0402X7R471K500GT是一款高性价比通用MLCC,凭借小型化、宽温稳定、低损耗等特性,成为消费电子与工业控制领域的主流选型之一。

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