WMSIC Electronic Components

PSA FM32X684K251EGG

ModelFM32X684K251EGG
Package1210
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 25+

Availability on request

Technical data

Product details

18 specifications

Core information

Product name
PSA FM32X684K251EGG
Type
PSA
Minimum package
1000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
PSA
Electronic Component
FM32X684K251EGG
Electronic Component
1
Electronic Component
680nF
Package
1210
Electronic Component
SMD Capacitor(MLCC)
Electronic Component
±10%
Electronic Component
0.166g
Electronic Component
1
Electronic Component
BM0264820263
Electronic Component
X7R
Voltage
250V
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.

FM32X684K251EGG 多层陶瓷贴片电容(MLCC)产品概述

一、核心参数与标识解析

FM32X684K251EGG是信昌电陶(PSA)推出的高压MLCC,核心参数符合工业标准,标识清晰可辨:

参数项 具体规格 标识含义说明 容值 680nF(684pF) 三位数码:68(有效数)+ 10⁴(倍率)= 680000pF=680nF 精度 ±10% 标识“K”(EIA精度代码) 额定电压 250V DC(或250V AC有效值) 标识“251”:25×10¹V=250V 温度系数 X7R(EIA标准) 工作温度-55℃~+125℃,容值变化≤±15% 封装 1210(英制)/3225(公制) 3.2mm×2.5mm(长×宽) 环保标准 RoHS 2.0、REACH 无铅、无镉等有害物质

注:额定电压需注意交流电压降额——若应用于AC电路,250V AC有效值(峰值≈353V)需确认电路峰值电压不超过产品额定值的80%(约200V AC峰值),避免击穿。

二、封装与工艺适配性

1210封装是MLCC主流表面贴装规格,适配自动化SMT生产:

  • 尺寸细节:长3.2±0.2mm,宽2.5±0.2mm,常见厚度1.6±0.2mm(部分批次支持1.2mm薄型);
  • 端电极设计:采用“镍阻挡层+锡镀层”双层结构——内层镍防止焊接时锡向陶瓷基体扩散,外层锡兼容回流焊(260℃峰值)、波峰焊工艺,焊接强度≥5N;
  • 布局兼容性:小尺寸适合高密度PCB设计,可与其他1210封装元件(如电阻、电感)共板布局,减少空间占用。

三、X7R陶瓷材料特性

X7R是MLCC“温度稳定型”材料的代表,平衡了容值密度与温度稳定性:

  • 温度范围:-55℃(低温极限)~+125℃(高温极限),覆盖工业、汽车电子的宽温需求;
  • 容值变化:在工作温度内,容值相对于25℃基准的变化≤±15%,优于Y5V(±20%~-80%),适合对温度敏感的滤波电路;
  • 介电常数:εr≈2000~4000,可实现680nF大容量于1210小封装,无需牺牲尺寸换容值。

四、典型应用场景

结合250V高压、X7R特性,该产品主要用于高压滤波/耦合场景:

  1. 工业电源:AC/DC开关电源、UPS的220V市电输入滤波,抑制EMI干扰;
  2. LED驱动:高压LED(如30V串联10颗)驱动电路的输出滤波,稳定电压波动;
  3. 家电控制:洗衣机、空调的压缩机驱动回路滤波,耐受-20℃~85℃的工作环境;
  4. 通信设备:基站电源模块、光模块的高压辅助电路,兼容-40℃~85℃的户外温度;
  5. 仪器仪表:工业传感器、测试仪器的高压信号耦合,避免容值漂移影响精度。

五、可靠性与品质验证

PSA作为国内MLCC主流厂商,该产品通过多项行业标准测试:

  • 环境测试:高低温循环(-55℃~125℃,1000次)、湿热测试(85℃/85%RH,1000h);
  • 电性能测试:耐电压(2×250V=500V,2s无击穿)、绝缘电阻(≥10⁹Ω);
  • 机械测试:振动(20~2000Hz,10g加速度)、跌落(1.5m高度,无失效);
  • 标准认证:符合IEC 60384-1、GB/T 2693-2001,满足工业级应用要求。

六、选型与替换参考

  1. 电压匹配:工作电压需≤200V AC峰值(或250V DC),脉冲电压需降额至额定值的70%;
  2. 精度替换:若需±5%精度,可选择同系列“J码”产品(如FM32X684J251EGG);
  3. 同参数替换:村田GRM32ER684K251KA01D、三星CL32B684K0G250、TDK C3216X7R1H684K;
  4. 温度升级:若应用温度≥125℃,需更换为X8R(+150℃)或C0G(NP0)材料。

总结

FM32X684K251EGG是一款高性价比高压MLCC,以X7R材料实现宽温稳定,1210封装适配SMT生产,适合工业、消费电子的高压滤波场景。PSA的品质保障使其成为替代进口同参数产品的可靠选择,尤其适合成本敏感的中高端应用。

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