WMSIC Electronic Components

TDK CGA2B1X7S1C474KT000F

ModelCGA2B1X7S1C474KT000F
Package0402
BrandTDK
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
TDK CGA2B1X7S1C474KT000F
Type
TDK
Minimum package
10000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
TDK
Electronic Component
CGA2B1X7S1C474KT000F
Electronic Component
1
Electronic Component
470nF
Package
0402
Electronic Component
SMD Capacitor(MLCC)
Electronic Component
±10%
Electronic Component
0.012g
Electronic Component
1
Electronic Component
BM0257285458
Electronic Component
X7S
Voltage
16V
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.

CGA2B1X7S1C474KT000F 产品概述

一、基本参数与型号释义

CGA2B1X7S1C474KT000F 为 TDK 系列贴片多层陶瓷电容(MLCC),主要参数如下:

  • 容值:470 nF(0.47 μF)
  • 精度:±10%
  • 额定电压:16 V DC
  • 温度特性:X7S(适用温度范围 -55°C 至 +125°C,温度特性稳定)
  • 封装:0402(公制 1005 英制),适合高密度 SMT 布局

型号中包含的 X7S 表示采用介质材料在宽温区间内具有较好的容值稳定性和介电常数,适用于对温度范围要求较高但对精度要求不是极端苛刻的场合。

二、主要特性

  • 体积小、容值高:在 0402 极小封装中实现 470 nF 容量,有利于在空间受限的设计中实现去耦、旁路与滤波功能。
  • 低等效串联电阻(ESR)与低漏电:典型 MLCC 特性,适合快速瞬态响应场合。
  • 宽温度适应性:X7S 可在 -55°C 至 +125°C 工作,温度下容值变化受控,适应工业级或消费类环境。
  • 自动化装配友好:适配标准贴片机与回流工艺,支持大批量产线贴装。

三、电气与环境考虑

  • 直流偏置效应:Class II 型陶瓷在施加直流电压时会产生容值下降,设计时应进行 DC-bias 测试并留有裕量或选用更高额定电压以确保有效容量。
  • 温漂与老化:X7S 在长期与高温下会有一定的容值漂移与老化效应,设计时建议保留容值裕度并在关键应用进行寿命验证。
  • 工作电压与安全裕量:建议根据实际应用考虑电压降额策略(derating),以提高长期可靠性。

四、封装与装配注意事项

  • 0402 封装体积极小,贴装时需注意吸嘴尺寸匹配与回流曲线控制,避免因机械应力造成裂纹或内应力导致失效。
  • 建议采用标准无铅回流温度曲线(SnAgCu),遵循 TDK 的焊接与回流推荐工艺以保证焊点可靠性。
  • 储存与搬运应避免潮湿与过度机械应力,生产前按厂家建议进行干燥处理(若适用)。

五、典型应用

  • 电源去耦与旁路:处理数字电路瞬态电流,稳定电源轨。
  • 输入/输出滤波:用于模拟前端、ADC 采样滤波以及电源滤波网络。
  • 移动设备与便携终端:在空间受限的 PCB 区域提供高密度去耦。
  • 工业控制与汽车电子(非高温/高应力关键部位):依照应用环境与可靠性要求选型。

六、选型与替代建议

  • 若担心 DC-bias 或对容值稳定性有更高要求,可考虑提高额定电压或选择不同介质(如 X7R、NP0/C0G 等,依据稳定性与容量要求权衡)。
  • 可参考其他厂商同类产品(例如 Murata、Yageo、KEMET 等)以作交叉比对,但需核实尺寸、介质特性与电气特性一致性。

七、可靠性验证与测试建议

  • 在最终设计中对温度循环、湿热、振动与回流焊后电气性能进行验证。
  • 建议进行 DC-bias 下的容值测量、耐压测试及长期老化评估,以确保在目标工作条件下满足规格要求。

总结:CGA2B1X7S1C474KT000F(TDK,0402,470nF,16V,X7S,±10%)以其在超小封装中提供较高容值和宽工作温度范围的特性,适合高密度 SMT 去耦与滤波场合。设计时需关注直流偏置、老化与机械应力对可靠性的影响,并按实际使用环境做合适的裕量与验证。

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