WMSIC Electronic Components

muRata GRM155C81A105KA12D

ModelGRM155C81A105KA12D
Package0402
BrandmuRata
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
mu Rata GRM155C81A105KA12D
Type
MURATA
Minimum package
10000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
MURATA
Electronic Component
GRM155C81A105KA12D
Electronic Component
1
Electronic Component
1uF
Package
0402
Electronic Component
SMD Capacitor(MLCC)
Electronic Component
±10%
Electronic Component
0.012g
Electronic Component
1
Electronic Component
BM0230596126
Electronic Component
X6S
Voltage
10V
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.

GRM155C81A105KA12D 产品概述

GRM155C81A105KA12D 是村田(muRata)GRM155 系列的一款片式多层陶瓷电容(MLCC),标称容量 1.0 μF,公差 ±10%,额定电压 10 V,温度特性等级 X6S,0402(公制 1.0 × 0.5 mm)封装。该元件适用于对空间要求高、需要中等容量去耦或旁路的便携及工业电子设计中。

一、主要参数与物理特征

  • 容值:1.0 μF
  • 公差:±10%(K)
  • 额定电压:10 V DC
  • 温度特性:X6S(适用温度范围通常覆盖低温至高温工作条件)
  • 封装:0402(1.0 × 0.5 mm),适合高密度布板
  • 系列:GRM155(多层陶瓷电容)
  • 品牌:muRata(村田)

二、电气性能与使用要点

  • 陶瓷介质为 II 类特性,具有较高的体积比容量和良好的频率响应,适合电源旁路与去耦。
  • 受 DC 偏置和温度影响,实际工作电压下的有效电容会低于标称值;在设计时应考虑直流偏置和工作温度对容量的影响并留有裕量。
  • ESR 与 ESL 相对较低,适合高频旁路,但 0402 封装对纹波电流的承受能力有限,长时间大纹波场合建议选用更大封装或专用钽电容/固态电容。
  • 陶瓷电容存在老化现象(容量随时间缓慢下降),对长期稳定性要求极高的场合应慎选。

三、封装、焊接与可靠性建议

  • 0402 小尺寸适合高密度贴片,但也更易受机械应力影响;在 PCB 设计时应注意减少焊盘对基板裂纹应力。
  • 焊接采用无铅回流工艺,建议按厂商推荐的回流曲线进行(参考村田数据手册),避免重复高温回流及过度机械应力。
  • 贮存与搬运时防潮、防振动,必要时按制造商建议进行预烘烤以防焊接时爆裂。
  • 贴装时保持良好焊盘设计和丝网印刷量,确保焊点均匀,减小引脚应力集中。

四、典型应用场景

  • PCB 电源去耦与局部旁路(MCU、ADC/DAC、电源管理 IC)
  • 移动设备与消费电子(空间受限的滤波与去耦)
  • 通信设备、工业控制和精密仪器(需兼顾温度范围和频率性能的场景)
  • 不建议用于对容量温度稳定性要求极高或承受大纹波电流的电源滤波主回路

五、选型与替代建议

  • 若需更高容量稳定性或更小温度漂移,可考虑 NP0/C0G 系列(但体积与容量受限)或容量更大封装的 X7R/X5R/其他材料。
  • 若工作电压或纹波更高,建议上移额定电压(如 16 V、25 V)或选用更大封装以提高可靠性。
  • 选型时应综合考虑 DC 偏置、温度变化和寿命影响,必要时参考厂商的容量随电压/温度曲线与可靠性试验数据。

总结:GRM155C81A105KA12D 以 0402 超小封装提供 1 μF 中等容量,适合高密度电路的去耦与旁路应用。设计时需关注 DC 偏置、温度依赖与机械应力,按村田推荐的工艺和封装注意事项进行布板与焊接,以获得稳定可靠的电气性能。若需具体温度/电压下的容量曲线、回流曲线或包装信息,请参考村田官方数据手册。

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