WMSIC Electronic Components

muRata GRM1557U1A472JA01D

ModelGRM1557U1A472JA01D
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

20 specifications

Core information

Product name
mu Rata GRM1557U1A472JA01D
Type
MURATA
Unit
Electronic Component
Minimum package
10000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
MURATA
Electronic Component
GRM1557U1A472JA01D
Electronic Component
1
Electronic Component
4.7nF
Package
0402
Electronic Component
SMD Capacitor(MLCC)
Electronic Component
±5%
Electronic Component
0.015g
Electronic Component
1
Electronic Component
BM0259371980
Electronic Component
U2J
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.

GRM1557U1A472JA01D 产品概述

一、产品简介

GRM1557U1A472JA01D 为 muRata(村田)生产的一款0402(工业标准 0402 / 公制 1005)贴片多层陶瓷电容(MLCC)。该型号标称容量为 4.7nF,精度 ±5%,额定直流电压 10V,温度系数由厂商编码 U2J 表示。凭借超小封装与稳定的电气特性,适用于空间受限的便携式与高密度电路板设计。

二、主要参数与特性

  • 容值:4.7nF(472)
  • 公差:±5%(J)
  • 额定电压:10V DC
  • 温度特性:U2J(厂商温度特性代号,表征容量随温度变化的行为,请以村田数据表中对应代号的详细温度曲线为准)
  • 封装尺寸:0402(1005 metric)— 适合高密度贴片组装
  • 元件类型:多层陶瓷电容(MLCC),表面贴装
  • 品牌:muRata(村田)

这些参数决定了该器件在低压、对体积敏感的电子系统中有良好的滤波、去耦、旁路与交流耦合能力。

三、典型应用场景

  • 移动终端与可穿戴设备:有限的 PCB 面积与低工作电压场合的去耦与旁路。
  • 高频滤波与阻抗匹配:在射频前端或高速数字接口附近用于抑制高频噪声(需结合等效串联电感/电阻考虑)。
  • 模数/数模接口:与阻容网络配合用于采样前的抗混叠或耦合电容。
  • IoT 与便携式传感器节点:尺寸小、性能稳定,适合大规模表贴产线。

四、布局与焊接建议

  • 最短的走线:去耦应用时尽量将电容放置在电源引脚与接地之间,走线短且宽以降低寄生电感。
  • 接地处理:如果用于去耦,建议靠近电源/芯片的接地端放置,并在需要时设置多过孔(via)直通地层。
  • 焊接与回流:遵循村田推荐的回流焊曲线与湿热、热冲击限制,避免过度机械应力。0402 封装对焊盘设计、焊膏用量与回流参数较敏感,需在制程中验证良率。
  • 温度应力与机械防护:在高速贴装或后处理(清洗、修补)时注意避免弯折和过度热循环,降低裂纹与失效风险。

五、可靠性与选型注意事项

  • 电压与温度行为:小尺寸 MLCC 在直流偏置与温度下容量可能发生变化,选型时请参考厂商数据表中直流偏置特性与温漂曲线,确保工作条件下满足电路需求。
  • 介质代号 U2J:该代号代表特定的温度-容量特性;不同代号在温漂、介电常数及高频性能上有差异,关键场合应查阅村田完整规范。
  • 老化与短期稳定性:陶瓷材料可能随时间有轻微老化效应,长期稳定性需求高的设计应考虑适当余量或使用温度系数更稳定的材料。
  • 可靠性测试:在汽车、医疗等高可靠性领域,须满足相应的认证与测试(热循环、湿热、机械震动等)。

六、等效型号与采购建议

  • 采购时确认完整型号与温度特性(U2J)匹配,注意村田内部代号与外观包装(A01D)信息,以免混淆近似型号。
  • 若需不同电压或温漂特性,可选用同尺寸的其它 GRM15 系列型号;在更高电压或更稳定温漂场景,可考虑更大尺寸或不同介质(例如 C0G/NP0)产品。
  • 建议从官方渠道或授权分销商采购,并在样品阶段依据自有电路板做实测验证,以确保在目标应用下的电气与机械可靠性。

如需,我可以帮助查询该型号的村田数据表关键曲线(温漂、直流偏置、等效串联电阻/电感)并对比常见替代件。

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