WMSIC Electronic Components

ECHU1H473JX9

ModelECHU1H473JX9
PackageSMD,3.3x4.8mm
BrandPANASONIC
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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
PANASONIC ECHU1H473JX9
Type
PANASONIC
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
PANASONIC
Electronic Component
ECHU1H473JX9
Electronic Component
1
Electronic Component
47nF
Package
SMD,3.3x4.8mm
Electronic Component
Capacitor
Electronic Component
±5%
Electronic Component
0.904g
Electronic Component
1
Electronic Component
(PPS)
Electronic Component
BM0257240725
Operating Temperature
55℃~+125℃
Voltage
50V
Electronic Component
Electronic Component
Electronic Component
3000

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

ECHU1H473JX9 产品概述

一、产品简介

ECHU1H473JX9 是松下(PANASONIC)的一款表面贴装薄膜电容器,标称容量 47nF,容差 ±5%,额定电压 50V,介电材料为聚苯硫醚(PPS)。封装为 SMD,外形尺寸约 3.3 × 4.8 mm,工作温度范围为 -55℃ 至 +125℃。该系列以薄膜结构为基础,适用于需要良好温度稳定性、低损耗和长期可靠性的电子电路场景。

二、主要性能特点

  1. 容值与精度:47nF,±5% 的精度适合对容值稳定性有较高要求的滤波、耦合和定时电路。
  2. 高温性能:PPS 介质耐热性优良,允许的工作温度范围宽(-55℃~+125℃),适合工业级和高温环境应用。
  3. 低损耗与高稳定性:PPS 薄膜具有较低的电介质损耗(低 tanδ),随温度和频率的变化较小,能在宽频带内保持稳定性能。
  4. 结构与可靠性:常采用金属化薄膜结构(具体以厂方数据为准),具备体积小、耐应力和在局部放电后局部自愈的潜力,从而提高长期可靠性。
  5. SMD 封装:贴片封装适合自动化贴装与回流焊工艺,利于体积受限的现代电路板布局。

三、适用场景(推荐应用)

  • 电源去耦与旁路:在 50V 以下的直流电源轨上用于中高频去耦,改善电源稳定性和瞬态响应。
  • 信号耦合与隔直:用于音频、模拟信号链路的耦合电容,因其低损耗特性可保持信号完整性。
  • 滤波与谐振网络:在 EMI/EMC 滤波或者 RC/LC 网络中用于稳定的电容值与温度系数控制。
  • 定时与采样电路:需要较好温漂与低吸收的定时回路或采样电路中表现优越。
  • 工业与车载电子(视认证与应用要求):宽温特性和可靠性使其适用于工业级应用,若用于车载需确认具体车规认证。

四、应用注意事项与设计建议

  • 额定电压余量:建议在实际设计中留有一定的电压余量(通常不超过额定电压的 80% 长期运行),以延长寿命并减少失效风险。
  • 温度与环境:尽管 PPS 具备良好耐温性,高温环境下仍应关注周边器件和 PCB 散热,避免长期处于极限温度区间。
  • 焊接与装配:采用常规 SMD 回流焊工艺即可,但应严格遵循松下提供的焊接与回流温度曲线以避免机械或热应力损伤。
  • PCB 布局:对于去耦与高频应用,尽可能将电容贴近电源引脚或噪声源,缩短引线长度以降低寄生电感与阻抗。
  • 机械挤压与弯曲:薄膜电容对封装应力敏感,避免在贴片过程中对器件施加强烈弯折或剪切力。

五、与其他介质的对比(选型参考)

  • PPS vs 陶瓷(如 X7R、C0G):PPS 在中低频段表现稳定、损耗低且温漂小,适合较大电容值场合;陶瓷在体积/容值比和高频性能上优势明显,但某些类别(X7R)随偏压有容量变化。
  • PPS vs 聚丙烯(PP):PP 介质在损耗和介电性能上也很优秀,常用于高精度和高脉冲场合;PPS 的耐温更好,适合更高环境温度且厚度更薄,适合 SMD 化需求。
  • PPS 薄膜优点集中在温度稳定性、低损耗与长期可靠性,适用于对电性能一致性要求较高的场合。

六、存储与可靠性建议

  • 存储于干燥、常温且无强腐蚀性气体的环境,避免阳光直射与潮湿环境。
  • 在长期存储或长期运行后,建议在正式投产前做抽样电性测试(容值、绝缘电阻、损耗角正切等)以确认器件状态。
  • 对于关键应用(如医疗、航空、车载),应结合松下提供的可靠性数据与测试报告进行系统级验证。

七、结语

ECHU1H473JX9 以 47nF/50V 的规格、PPS 介质和 SMD 小尺寸封装,兼顾了电性能稳定性与工程可装配性,适合要求温度稳定、低损耗和长期可靠性的中高端电子应用。在最终选型与焊接工艺确认时,建议参考松下官方数据手册与工程建议,以确保器件在目标应用中的性能与寿命满足需求。

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