WMSIC Electronic Components

CCTC TCC0805X7R121K500BT

ModelTCC0805X7R121K500BT
Package0805
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 Date code within 2 years

Available for RFQ

Technical data

Product details

18 specifications

Core information

Product name
CCTC TCC0805X7R121K500BT
Type
CCTC
Minimum package
4000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
CCTC
Electronic Component
TCC0805X7R121K500BT
Electronic Component
1
Electronic Component
120pF
Package
0805
Electronic Component
SMD Capacitor(MLCC)
Electronic Component
±10%
Electronic Component
0.068g
Electronic Component
1
Electronic Component
BM0264458149
Electronic Component
X7R
Voltage
50V
Electronic Component
Electronic Component
Electronic Component
4000

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

TCC0805X7R121K500BT 贴片多层陶瓷电容(MLCC)产品概述

TCC0805X7R121K500BT是三环电子(CCTC) 推出的一款通用型贴片多层陶瓷电容(MLCC),采用0805封装,针对消费电子、工业控制、通信等领域的基础滤波、耦合需求设计,兼具体积小、温度稳定性好、可靠性高的特点,是中小功率电路的常用选型。

一、产品基本定位与型号解析

该型号属于三环MLCC产品线中的“中容值通用款”,核心是平衡性能与成本,适合对容值精度要求不高(±10%)但需宽温工作的场景。型号命名规则清晰:

  • TCC:三环电子品牌标识;
  • 0805:封装尺寸(英制0.08×0.05英寸,公制≈2.0×1.25mm);
  • X7R:介质材料(温度稳定型陶瓷);
  • 121:容值编码(12×10¹=120pF);
  • K:精度等级(±10%);
  • 500:额定直流电压(50V);
  • BT:无铅锡端接类型(符合环保标准)。

二、核心电气性能参数

参数项 规格值 关键说明 标称容值 120pF 121编码直接对应 容值精度 ±10%(K级) 满足一般滤波、耦合的精度需求 额定直流电压(Vdc) 50V 交流电压需降额(峰值≤35V,避免击穿) 温度系数介质 X7R -55℃~+125℃,容值变化≤±15% 介质损耗(tanδ) ≤2.5%(1kHz,25℃) 低频电路下损耗可忽略,不影响性能

三、封装与物理特性

采用0805贴片封装,适配标准SMT生产线,无引线设计节省PCB空间:

  • 尺寸:长2.0±0.2mm,宽1.25±0.2mm,厚度≤1.0mm(典型值0.8mm);
  • 端接:无铅锡(Sn),符合RoHS 2.0、REACH环保标准,焊接兼容性好;
  • 重量:≈0.01g/颗,适合高密度PCB布局(如手机、平板等小型设备)。

四、X7R介质的温度稳定性优势

X7R是MLCC中应用最广泛的温度稳定型介质,区别于其他常见介质:

  • 比NPO(COG)容值变化大,但成本低、容值范围宽;
  • 比Y5V(容值变化±20%~+80%)稳定性高,适合温度波动场景。

该型号在**-55℃至+125℃** 范围内,容值变化不超过±15%,可稳定工作于:

  • 工业控制的高温环境(如电机控制柜、PLC模块);
  • 消费电子的宽温使用(如户外便携设备、车载辅助电路);
  • 通信设备的常温/微高温场景(如路由器、交换机)。

五、典型应用场景

  1. 消费电子:手机、平板的电源滤波(电池供电电路)、音频信号耦合;
  2. 工业控制:PLC输入输出模块去耦、传感器信号滤波;
  3. 通信设备:路由器DC-DC转换滤波、交换机射频辅助滤波;
  4. 小家电:电饭煲控制电路耦合、电磁炉电源滤波;
  5. 汽车电子:车载中控低功率电路滤波、倒车影像信号去耦(适配12V/24V系统)。

六、可靠性与品牌保障

三环电子(CCTC)是国内MLCC主流厂商,该型号通过多项可靠性测试:

  • 高温老化测试(125℃×1000h,容值变化≤±5%);
  • 湿度循环测试(85℃/85%RH×500h,性能无衰减);
  • 无铅焊接测试(回流焊峰值245℃,无开裂、虚焊)。

产品寿命符合行业标准:在额定电压(50V)、额定温度(125℃)下,平均寿命≥10^4小时。

七、选型与使用注意事项

  1. 电压匹配:电路工作电压需≤50Vdc,交流峰值电压需≤35V(降额70%),避免击穿;
  2. 精度需求:若需±5%以内精度,需换用COG介质型号(如TCC0805COG121J500BT);
  3. 温度范围:若工作温度超出-55℃~+125℃,需选X8R等高温介质型号;
  4. 焊接工艺:回流焊温度峰值≤245℃,避免过温导致介质开裂;
  5. 降额使用:长期工作建议电压≤35Vdc(降额30%),延长寿命。

该型号凭借高性价比、宽温稳定的特点,成为中小功率电子电路的常用选择,适配多种量产场景,可有效降低电路设计成本。

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