WMSIC Electronic Components

PSA FV42X472K202EFG

ModelFV42X472K202EFG
Package1808
BrandPSA
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
PSA FV42X472K202EFG
Type
PSA
Minimum package
1000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
PSA
Electronic Component
FV42X472K202EFG
Electronic Component
1
Electronic Component
4.7nF
Package
1808
Electronic Component
SMD Capacitor(MLCC)
Electronic Component
±10%
Electronic Component
0.001g
Electronic Component
1
Electronic Component
BM0265434621
Electronic Component
X7R
Voltage
2kV
Electronic Component
Electronic Component
Electronic Component
1000

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

FV42X472K202EFG 多层陶瓷电容产品概述

一、产品基本属性与型号解析

FV42X472K202EFG是PSA信昌电陶推出的高压多层陶瓷电容(MLCC),属于该品牌高压专用产品线。型号命名遵循行业通用规则,各段含义清晰:

  • FV42:系列标识,对应高压MLCC的设计架构(优化叠层结构以耐受高电压);
  • X472:容值代码,47×10² pF = 4.7nF;
  • K:精度等级,±10%(满足工业级通用需求);
  • 202:额定电压,20×10² V = 2kV(直流额定电压,交流场景需降额);
  • EFG:封装及工艺后缀,对应1808英制表面贴装封装(公制尺寸4.5mm×2.0mm),适配高密度PCB布局。

二、核心电气参数详解

该产品的参数设计聚焦高压场景的稳定性与小型化平衡:

  1. 容值与精度:4.7nF(中等容值),±10%精度——无需额外校准即可满足滤波、耦合电路的偏差要求;
  2. 额定电压:2kV直流——可耐受最高2kV的稳态直流电压,交流峰值需降额30%以上(即≤1.4kV),避免局部电场集中击穿;
  3. 温度系数:X7R(EIA标准)——这是产品的核心特性,具体为:
    • 工作温度范围:-55℃ ~ +125℃;
    • 容值变化率:相对于25℃基准,变化不超过±15%。

三、X7R温度特性的实际价值

X7R是MLCC中温稳性与容值的最优平衡选项,区别于其他类型:

  • 对比Y5V(容值大但温漂达±20%+):X7R的容值稳定性更适配对温度敏感的高压电路(如医疗设备信号耦合);
  • 对比NPO(容值极稳但容值小):X7R可提供4.7nF的中等容值,兼顾高压耐受与功能需求;
  • 宽温覆盖:-55℃~+125℃可适配工业户外设备、电动车辆等极端温度场景,无需额外散热或保温设计。

四、典型应用场景

FV42X472K202EFG的参数特性使其成为以下场景的优选:

  1. 工业高压电源:开关电源的高压滤波、EMI滤波(MLCC高频阻抗低,抑制10MHz以上噪声效果显著);
  2. 医疗设备高压模块:X光机、理疗仪的高压耦合电容(稳定容值避免信号失真,2kV电压匹配设备高压输出);
  3. 新能源领域:光伏逆变器高压母线滤波、储能系统DC-DC转换器高压侧(2kV电压适配部分1500V系统母线);
  4. 汽车电子高压部件:电动车辆DC-DC转换器、车载充电机(OBC)的高压滤波(X7R宽温适应车载-40℃~+85℃环境);
  5. 通信基站辅助电源:基站高压备份电源的滤波电容(1808封装节省PCB空间,适配基站紧凑布局)。

五、可靠性与工艺特点

PSA的工艺保障了产品在高压场景下的长期可靠性:

  • 叠层优化:采用高精度陶瓷叠层技术,电极层均匀分布(误差≤0.5μm),减少局部电场集中,击穿电压裕量达1.5倍额定电压;
  • 电极材料:银钯合金电极(Pd含量10%~15%),耐氧化、耐温性优于纯银电极,使用寿命延长30%以上;
  • 封装可靠性:环氧树脂包封符合IEC 60068-2-67湿热测试标准(85℃/85%RH环境下1000小时无失效),机械强度满足SMT回流焊要求(符合J-STD-020);
  • 失效率:工业级失效率≤100 FIT(每10亿小时失效100次),满足7×24小时连续工作需求。

六、选型与使用注意事项

  1. 电压降额:实际工作电压峰值需低于额定电压的70%(即≤1.4kV),避免过压导致的介质击穿;
  2. 温度适配:若工作温度超过+125℃(如高温工业炉),需更换X8R(+150℃)或更高温系数产品;
  3. 封装焊接:1808封装焊盘需符合IPC-7351标准(焊盘长3.03.5mm,宽1.52.0mm),回流焊温度峰值≤245℃;
  4. 容值升级:若需更大容值(如10nF),可选择同系列FV42X103K202EFG,但需确认封装兼容性。

该产品通过了RoHS、REACH等环保认证,适合全球市场的合规需求,是工业、医疗、新能源等领域高压电路的高性价比选择。

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