WMSIC Electronic Components

EEFSX0D471XE

ModelEEFSX0D471XE
PackageSMD,7.3x4.3mm
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 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
PANASONIC EEFSX0D471XE
Type
PANASONIC
Minimum package
3500 个

Technical parameters

Electronic Component
Electronic Component
Electronic Component
PANASONIC
Electronic Component
EEFSX0D471XE
Electronic Component
1
Electronic Component
470uF
Package
SMD,7.3x4.3mm
Type
Electronic Component
Electronic Component
Capacitor
Electronic Component
±20%
Electronic Component
0.166g
Electronic Component
1
Electronic Component
BM0257240722
Electronic Component
2000hrs@105℃
Operating Temperature
55℃~+105℃
Current
7.5A@100kHz
Voltage
2V

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

EEFSX0D471XE 产品概述

一、产品简介

EEFSX0D471XE 是松下(PANASONIC)推出的一款固态聚合物电容,标称容量 470µF,公差 ±20%,额定电压 2V,封装为 SMD(7.3 × 4.3 mm),电容体高度 1.9 mm。该系列以低等效串联电阻(ESR)和高纹波电流能力为特点,适用于空间受限且要求高瞬态响应与低阻抗的电源去耦与滤波场合。

二、主要电气参数

  • 容值:470 µF(±20%)
  • 额定电压:2.0 V
  • 纹波电流:7.5 A @ 100 kHz
  • 等效串联电阻(ESR):6 mΩ @ 100 kHz
  • 工作温度:-55 °C ~ +105 °C
  • 额定寿命:2000 小时 @ 105 °C
  • 类型:固态聚合物电容(无液体泄漏风险)
  • 封装:SMD,尺寸 7.3 × 4.3 mm,电容体高度 1.9 mm

三、性能优势

  • 低 ESR(6 mΩ)带来极低的交流压降:在标称 100kHz 纹波电流 7.5A 下,Vripple ≈ 7.5A × 6mΩ ≈ 45 mV,能有效降低电源总线噪声与纹波。
  • 高纹波电流能力(7.5 A)使其可承受高频开关电源的输出纹波,有利于缩小滤波网络体积。
  • 固态聚合物材料提升了稳定性和寿命,在高温下比传统铝电解电容表现更稳定且无电解液泄漏问题。
  • 小尺寸封装(7.3×4.3 mm)适合空间受限的点对点供电和板上去耦应用。

四、典型应用场景

  • DC–DC 转换器输出电容与输入去耦(尤其是低压大电流点负载,如 CPU、FPGA、电源模块)
  • 电源模块和电源管理芯片(PMIC)的输出滤波与瞬态响应提升
  • 高功率密度通信和消费类电子设备的去耦与稳压应用
  • 工业与仪器设备中对高频纹波和宽温度范围有要求的场合(注:若用于汽车电子,请确认相关资格要求)

五、设计与使用建议

  • 布局:尽量将电容靠近被去耦的器件电源引脚放置,走线短且宽,必要时在引脚处使用多过孔过孔来降低寄生电感。
  • 热管理:按照 I^2·ESR 估算自热(例如 7.5^2 × 0.006 ≈ 0.34 W),并为电容周围留出散热铜面积以控制温升,从而延长寿命。
  • 电压裕量:尽量留有适度电压裕量,避免长期满额定电压工作;同时关注温升与纹波叠加对可靠性的影响。
  • 谐振与阻尼:低 ESR 有助于降低纹波,但也可能与系统电感形成谐振点,如需抑制振铃可并联小阻值或采用 RC 阻尼网络。
  • 回流焊与注意事项:按厂家推荐回流曲线进行焊接,避免在高温环境下超过额定寿命条件长期工作。

六、可靠性与寿命

EEFSX0D471XE 在 105 °C 下额定寿命为 2000 小时,这表明在常温工作时寿命应远高于此值,但具体寿命受工作电压、纹波电流与环境温度影响显著。固态聚合物电容一般呈现 ESR 增大或容量轻微衰减而非液体泄漏的失效特征,设计时应结合系统平均功耗与热环境进行寿命评估并预留设计裕度。

总结:EEFSX0D471XE 以其低 ESR、高纹波处理能力和小型 SMD 封装,适合用于对瞬态响应与低阻抗有严格要求的中高性能电源设计场景。采用合理的 PCB 布局与热设计,可在多种工业与消费电子应用中获得稳定可靠的表现。

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