WMSIC Electronic Components

muRata GRM158R61A226ME15D

ModelGRM158R61A226ME15D
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 26+

Available for RFQ

Technical data

Product details

18 specifications

Core information

Product name
mu Rata GRM158R61A226ME15D
Type
MURATA
Minimum package
8000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
MURATA
Electronic Component
GRM158R61A226ME15D
Electronic Component
1
Electronic Component
22uF
Package
0402
Electronic Component
SMD Capacitor(MLCC)
Electronic Component
±20%
Electronic Component
0.029g
Electronic Component
1
Electronic Component
BM0229472539
Electronic Component
X5R
Voltage
10V
Electronic Component
Electronic Component
Electronic Component
8000

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

GRM158R61A226ME15D 产品概述

一、产品简介

GRM158R61A226ME15D 为村田(Murata)出品的一款高容值多层陶瓷贴片电容(MLCC),规格为 22 µF,额定电压 10 V,初始容差 ±20%,介质材料为 X5R,封装尺寸为 0402(公制 1.0 × 0.5 mm)。此器件在微小封装内实现较高电容值,适合对体积和高度有限制但需要较大旁路/储能的移动设备与消费电子产品的电源与去耦场合。

二、主要规格与外形

  • 容值:22 µF(标称)
  • 初始精度:±20%(M)
  • 额定电压:10 V DC
  • 介质:X5R(温度范围 -55 ℃ 至 +85 ℃,温度系数允许范围按 X5R 规范)
  • 封装:0402(约 1.0 mm × 0.5 mm,厚度通常在 0.4–0.55 mm 区间)
  • 封装形式:适用于自动贴片机的卷带(常见包装方式,便于大规模 SMT 贴装)
  • 制造商:Murata(村田),品质与良率在业界广受认可

三、电气特性与工作行为

X5R 是一种高介电常数的陶瓷材料,能够在较小体积下提供较大电容。但需注意几项典型特性:

  • 温度特性:X5R 在 -55 ℃ 到 +85 ℃ 范围内容值变化通常在 ±15% 规范范围内,但初始容差为 ±20%,因此在极端温度下总容值波动需按两者叠加评估。
  • 直流偏压特性(DC bias):高介电常数陶瓷在施加直流偏压时容值会显著下降,尤其在高容值和小体积组合下更明显。设计时应考虑在工作电压下的有效容值,而非仅用标称值。
  • ESR/ESL:作为 MLCC,等效串联电阻(ESR)和等效串联电感(ESL)较低,适合高速去耦和高频旁路,但具体数值随封装与频率变化,应参考厂商数据或实测。
  • 寿命与老化:陶瓷介质随时间会发生老化(容值随时间缓慢变化),在长期可靠性评估中需考虑老化与温度循环影响。

四、典型应用场景

  • 电源去耦与稳压器输入/输出端滤波(尤其在空间受限的移动终端、蓝牙/无线模组、便携式设备中)
  • DC-DC 转换器的输出滤波与瞬态储能
  • PCB 上紧凑型电源网络(PDN)中作为本地旁路电容,配合低容值高频电容组成多级滤波
  • 工业与消费类小尺寸模块化电路中需要权衡体积和储能容量的场合

五、设计与装配注意事项

  • DC bias 校核:在选型时建议参考厂商提供的 DC bias 曲线,或在目标工作电压下进行测量,确认实际有效容值满足电路需求。
  • 焊接与回流:遵循 Murata 的回流焊工艺指南;0402 为微型封装,需注意回流温度曲线、焊盘设计与焊膏量以保证焊点可靠性。
  • 机械应力防护:陶瓷电容易受弯曲或机械冲击引发裂纹,PCB 设计时避免在器件正下方或附近施加过大的机械应力(例如高速插拔、弯折区域),在必要时可增加阻焊保护或改用更大封装。
  • 温度环境与老化:对长期稳定性有严格要求的系统,应将 X5R 的温度特性与老化行为纳入容差预算;若需更高稳定性,可考虑 NP0/C0G 或其他低偏移介质(但其在同等封装下难以达到此容值)。

六、优势与局限

优势:

  • 单位体积容值高,适合空间受限设计;
  • 低 ESR/低 ESL,有利于抑制高频噪声;
  • SMT 兼容,适合自动化生产。

局限:

  • 容值受温度和偏压影响较大,工作时有效值可能显著低于标称;
  • 相较于电解电容或固态铝电容,MLCC 在能量储存密度与长期稳定性上有不同的权衡;
  • 微小封装对焊接与机械应力更敏感,需在 PCB 工艺与可靠性测试上加强管控。

七、选型建议

若目标电路要求在极小体积内实现较大去耦/储能且允许容值随温度与偏压发生一定变化,GRM158R61A226ME15D 是一个合适的选择。推荐在原型阶段对目标工作电压与温度条件下进行实际测量(含 DC bias、频率响应与温漂),并在 PCB 设计阶段遵循厂商推荐焊盘与布局规则,确保装配与长期可靠性。

总结:GRM158R61A226ME15D 将村田的制造品质与高容值 0402 封装结合,在移动设备与高密度电子设计中提供了有力的旁路与滤波方案,但在使用时需充分考虑 X5R 的温度与偏压特性以保证系统性能。

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