WMSIC Electronic Components

CCTC TCC0402X7R821K500AT

ModelTCC0402X7R821K500AT
Package0402
BrandCCTC
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
CCTC TCC0402X7R821K500AT
Type
CCTC
Minimum package
10000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
CCTC
Electronic Component
TCC0402X7R821K500AT
Electronic Component
1
Electronic Component
820pF
Package
0402
Electronic Component
SMD Capacitor(MLCC)
Electronic Component
±10%
Electronic Component
0.012g
Electronic Component
1
Electronic Component
BM0265069804
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.

TCC00402X7R821K500AT 贴片多层陶瓷电容(MLCC)产品概述

一、产品定位与核心属性

TCC0402X7R821K500AT是三环电子(CCTC) 推出的通用型贴片多层陶瓷电容(MLCC),针对小型化、中低压电子电路设计,兼顾容值稳定性与成本优势,适用于消费电子、可穿戴设备、小型工业控制等多场景批量应用。产品以0402(英制)超小封装为核心,匹配X7R介质的宽温度特性,是替代进口同规格器件的高性价比选择。

二、核心参数详解

产品关键参数遵循EIA(电子工业协会)标准,具体如下:

参数项 规格说明 容值与精度 820pF(3位数字编码:821,即82×10¹pF),精度±10%(K档,行业通用精度等级) 额定电压 50V DC(直流额定电压,实际工作建议降额至40V以内,延长寿命) 温度系数 X7R(温度范围-55℃~+125℃,容值变化≤±15%,平衡稳定性与容值密度) 封装尺寸 0402(英制),对应公制1005,具体尺寸:长1.0mm±0.1mm、宽0.5mm±0.1mm、厚0.5mm±0.1mm 环保标准 符合RoHS 2.0、REACH法规,无铅无卤(电极采用锡基合金,介质为环保陶瓷)

三、封装与工艺特点

  1. 超小封装优势:0402封装是当前主流小型化封装之一,可实现PCB高密度贴装(每平方厘米可贴装超1000个),适配智能手机、智能手表等紧凑空间设计;
  2. 多层陶瓷叠层工艺:采用三环自研的高纯度钛酸钡基陶瓷介质,通过精密叠层(每层厚度≤1μm)实现高容值密度,同时降低等效串联电阻(ESR≤10mΩ@100kHz)与等效串联电感(ESL≤1nH);
  3. 无铅电极设计:终端电极采用三层结构(镍层+锡层+抗氧化层),兼容回流焊、波峰焊工艺,焊接可靠性符合IPC-A-610标准(Class 2等级)。

四、典型应用场景

结合参数特性,产品主要应用于以下场景:

  • 消费电子:智能手机/平板的电源滤波(电池管理系统BMS输入输出、音频电路耦合)、蓝牙耳机的射频匹配;
  • 可穿戴设备:智能手表的传感器电路(心率、加速度传感器滤波)、手环的电源模块;
  • 小型家电:智能插座的控制电路、遥控器的信号耦合;
  • 低功率工业控制:小型PLC的I/O接口滤波、传感器模块的辅助电源;
  • 通信模块:蓝牙5.0、WiFi 6低功率模块的射频匹配电容。

五、可靠性与品质保障

三环电子针对该产品执行严格的可靠性测试,关键指标如下:

  1. 温度循环测试:-55℃~+125℃循环(1000次),容值变化≤±10%,无开裂/击穿;
  2. 湿度可靠性:85℃/85%RH环境下放置1000小时,容值变化≤±10%,绝缘电阻≥1GΩ;
  3. 耐电压测试:额定电压1.5倍(75V)下持续1分钟,无击穿/漏电流超标;
  4. 认证资质:通过IEC 60384-1(固定电容器通用标准)、CE、UL认证,可满足多数市场准入要求。

六、选型与使用注意事项

  1. 电压降额:实际工作电压建议不超过额定电压的80%(≤40V),避免长期过压导致容值漂移;
  2. 温度限制:工作环境温度避免超过125℃,否则容值变化可能超出±15%;
  3. 贴装工艺:回流焊峰值温度控制在230℃~240℃,时间≤10秒,防止热应力损坏陶瓷介质;
  4. 储存条件:常温(25℃±5℃)、干燥(湿度≤60%)环境下储存,储存期12个月,开封后建议1个月内使用完毕。

该产品凭借小型化、高稳定性与高性价比,已成为消费电子领域的主流选型之一,可直接替代村田GRM155R61C821KA50D、三星CL05B821K0R50NB等进口同规格器件,降低BOM成本。

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