WMSIC Electronic Components

CCTC TCC0805X7R683K101DT

ModelTCC0805X7R683K101DT
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 25+

Available for RFQ

Technical data

Product details

18 specifications

Core information

Product name
CCTC TCC0805X7R683K101DT
Type
CCTC
Minimum package
4000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
CCTC
Electronic Component
TCC0805X7R683K101DT
Electronic Component
1
Electronic Component
68nF
Package
0805
Electronic Component
SMD Capacitor(MLCC)
Electronic Component
±10%
Electronic Component
0.068g
Electronic Component
1
Electronic Component
BM0265124342
Electronic Component
X7R
Voltage
100V
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.

TCC0805X7R683K101DT 产品概述

TCC0805X7R683K101DT 是 CCTC(三环)推出的一款贴片多层陶瓷电容器(MLCC),规格为 0805 封装、容值 68nF(0.068µF)、容差 ±10%(K)、额定电压 100V、介质等级 X7R。该系列面向电源去耦、滤波和旁路等一般电子应用,兼顾体积、耐压与成本,在中高电压电源和模拟电路中具有良好的性价比。

一、主要参数与结构特性

  • 容值:68nF(0.068µF)
  • 精度:±10%(K)
  • 额定电压:100V DC
  • 介质:X7R(-55°C 至 +125°C,温度变化范围内电容变化可控)
  • 封装:0805(约 2.0 mm × 1.25 mm,标准尺寸)
  • 封装形式:贴片(SMD/SMT)
  • 品牌:CCTC(三环)

X7R 为二类陶瓷介质,具有较大的介电常数,能够在较小体积下实现较高容值,但相对于 C0G/NP0,X7R 在温度和电压下的电容变化较明显,因此适用于去耦和滤波等对精度要求不极端的场合。

二、电气性能与使用注意

  • 温度特性:X7R 在 -55°C 到 +125°C 范围内电容变化受限(典型范围 ±15%),但仍有温度相关漂移。
  • 直流偏置效应:在施加高直流电压时,X7R 类型电容的实际容量会显著下降。设计时应参考厂商的 DC-bias 曲线,根据工作电压留有裕量以保证有效容量。
  • 频率特性:MLCC 具有较低的等效串联电阻(ESR)和等效串联电感(ESL),在高频去耦和噪声滤除上表现良好。
  • 介电绝缘与耐压:按厂方测试规格具备合格的耐压和绝缘阻抗,但在设计时仍需考虑回路峰值电压和暂态冲击。

三、典型应用场景

  • 电源旁路与去耦:在 DC-DC 转换器、线性稳压器输入/输出和数字电路电源轨上用作中频至高频旁路电容。
  • 滤波与耦合:用于模拟前端、滤波网络以及去除射频干扰。
  • 能量存储与缓冲:在体积和电压受限的场合作为短时能量缓冲元件。
  • 其他消费电子、工业控制和汽车电子(需确认具体可靠性和温度等级)。

四、选型与设计建议

  • 考虑 DC-bias:在 100V 额定下,实际工作电压若接近额定值,容值衰减可能导致不足。建议在关键电路中考虑电压降额或选用更大容值/更高耐压规格。
  • 温度与精度:若电路对温漂或长期稳定性要求高,应考虑 C0G/NP0 或使用容差更小的器件;X7R 更适合对容量绝对精度要求不高但需要较大电容的场合。
  • 板级布局:靠近电源引脚放置,缩短回流路径,减小寄生电感;并配合低阻抗的电源接地布局以达到最佳去耦效果。
  • 机械应力:0805 封装对焊盘设计与焊膏量敏感,避免过大的板弯曲导致裂纹。

五、焊接与储存处理

  • 回流焊:遵循厂家推荐的回流焊温度曲线,常见无铅回流峰值在 ~245–260°C(以厂方资料为准)。避免重复多次高温循环。
  • 防潮与储存:MLCC 为潮敏器件,通常采取干燥包装(dry pack)。如包装破损或超过厂家规定的曝露时间,需按规范回烘。
  • 贴装注意:避免在贴装或制板过程中产生机械冲击或过大挤压,应有合适的贴装程序和工具。

六、可靠性与品质保证

CCTC(三环)作为元器件供应商,在 MLCC 的可靠性测试上通常包括温度循环、热冲击、耐压测试、绝缘阻抗和蒸汽回流等项目。实际设计时应查阅厂方数据手册获取详细的电气曲线(如 DC-bias 曲线、频率响应、耐压与绝缘数据)以及封装尺寸图和推荐焊盘尺寸,确保在目标应用环境下满足寿命和可靠性要求。

总结:TCC0805X7R683K101DT 在体积小、耐压高(100V)且容值适中的条件下,适合用于常规电源去耦和中高压滤波场景。设计中需重点关注 X7R 的直流偏置和温漂特性,并遵循厂方焊接与储存要求以保证长期稳定性与可靠性。若需精确的电气曲线或样品测试数据,建议索取厂方数据手册或样品进行验证。

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