WMSIC Electronic Components

CCTC TCC0402X7R183K500AT

ModelTCC0402X7R183K500AT
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 TCC0402X7R183K500AT
Type
CCTC
Minimum package
10000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
CCTC
Electronic Component
TCC0402X7R183K500AT
Electronic Component
1
Electronic Component
18nF
Package
0402
Electronic Component
SMD Capacitor(MLCC)
Electronic Component
±10%
Electronic Component
0.012g
Electronic Component
10
Electronic Component
BM0265069805
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.

TCC0402X7R183K500AT 产品概述

一、主要参数

  • 型号:TCC0402X7R183K500AT(CCTC/三环)
  • 容值:18 nF(18000 pF,标称)
  • 精度:±10%(K)
  • 额定电压:50 V DC
  • 温度特性:X7R(工作温度范围 -55°C ~ +125°C,温度引起的电容变化限于 ±15%)
  • 封装:0402(公制 1.0 × 0.5 mm,多层陶瓷片式电容,MLCC)
  • 材料/介质:多层陶瓷(X7R)

二、产品特性

  • 小体积:0402 封装适合高密度贴片组装,节省 PCB 面积,适用于便携与消费类电子。
  • 稳定性:X7R 介质在宽温度范围内保持相对稳定电容,适合电源去耦、旁路与一般滤波应用。
  • 高频性能:低等效串联电感(ESL)和较低等效串联电阻(ESR),有利于高频去耦与 EMI 抑制。
  • 耐压性能:50 V 额定电压满足多数模拟与数字电路的中高压旁路需求,但需注意 DC 偏压下电容下降(DC bias 效应)。
  • 可靠性:适配自动化贴装与回流焊工艺,符合常规焊接与设计生产要求。

三、典型应用场景

  • 数字电源旁路与去耦(微控制器、ASIC、FPGA 电源引脚)
  • 高频滤波与 EMI 抑制网络
  • 模拟电路旁通、耦合(非精密时钟或参考回路不建议使用 X7R)
  • 手机、可穿戴、IoT 设备、消费电子、通信设备等对体积与性能兼顾的场合

四、设计与使用建议

  • 贴近负载:为获得最佳去耦效果,将电容尽可能靠近被旁路器件的电源引脚布置,缩短走线长度。
  • 并联使用:将不同容值与不同封装的电容并联,可扩展频率响应(例如与 0603/0201 小电容并联)。
  • 考虑 DC bias:X7R 型 MLCC 在加直流电压时会出现显著电容衰减,应根据实际工作电压选择足够裕量或测试实际容值。一般建议对关键滤波点进行实际测量验证。
  • 温度与精度:若电路对容值精度与温漂有严格要求,优先考虑 C0G/NP0 等温度系数更优秀的介质。

五、封装、贴装与储存

  • 封装形式通常为卷带盘装(Tape & Reel),便于 SMT 取放与高速贴片。
  • 焊接工艺:兼容标准回流焊曲线,建议遵循厂家推荐的回流温度曲线与预热/峰值时间限制。
  • 防潮与储存:陶瓷电容对潮气敏感,存放时建议保持原包装密封,防潮盒保存,贴片前按厂家说明进行回流前烘烤(如属高湿等级时)。

六、质量与选型注意

  • 确认实际电容在工作电压与工作温度下的有效值,必要时向供货商索取 DC bias 特性曲线与温度依赖曲线。
  • 检查供货批号、材料与 RoHS 合规证书,CCTC(三环)品牌在国内拥有稳定的产能与质量控制,但对关键应用仍建议进行样品验证。
  • 订购时核对完整料号(TCC0402X7R183K500AT)与包装规格,避免因包装形式或后缀含义不同导致交付差异。

此款 0402 X7R 18nF ±10% 50V MLCC 以其体积小、频率响应好与工艺兼容性强的特点,适用于需要密集布板和常规去耦滤波的电子设备。选型时请结合具体电压、频谱与可靠性要求进行验证。若需更详细的电气特性曲线、焊接规范或样品测试数据,可联系供货商或参考产品数据手册。

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