WMSIC Electronic Components

PSA FM31N472J631EEG

ModelFM31N472J631EEG
Package1206
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 FM31N472J631EEG
Type
PSA
Minimum package
2000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
PSA
Electronic Component
FM31N472J631EEG
Electronic Component
1
Electronic Component
4.7nF
Package
1206
Electronic Component
SMD Capacitor(MLCC)
Electronic Component
±5%
Electronic Component
0.053g
Electronic Component
1
Electronic Component
BM0265312992
Electronic Component
C0G
Voltage
630V
Electronic Component
Electronic Component
Electronic Component
2000

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

FM31N472J631EEG 贴片多层陶瓷电容(MLCC)产品概述

FM31N472J631EEG是PSA信昌电陶推出的一款中高压贴片多层陶瓷电容(MLCC),针对工业级、高频及高压场景设计,具备容值稳定、损耗低、可靠性高的特点,广泛适配电源滤波、射频耦合等应用需求。

一、核心基础参数

该电容的核心电气参数明确且稳定,具体如下:

  • 容值:4.7nF(对应型号标识“472”,即47×10²pF=4700pF=4.7nF);
  • 精度:±5%(型号中“J”为精度标识,符合EIA J档标准);
  • 额定电压:630V DC(型号中“631”为电压标识,适用于中高压直流场景);
  • 温度系数:C0G(即NP0,国际电工委员会IEC标准分类),为零温度漂移型;
  • 工作温度范围:-55℃~+125℃(工业级宽温范围)。

二、封装与尺寸规格

采用1206英制贴片封装(对应公制3216,即长3.2mm×宽1.6mm),符合IPC-J-STD-001标准,具体尺寸参数(典型值):

  • 长度:3.2±0.2mm;
  • 宽度:1.6±0.2mm;
  • 厚度:1.0±0.1mm(端电极厚度不计入);
  • 端电极结构:镍底层+锡表层(镀锡工艺,适配回流焊/波峰焊)。

封装设计紧凑,适合高密度表面贴装,兼容自动化贴装设备(SMT),可有效节省PCB空间。

三、电气性能特性

  1. 低损耗与高稳定性:C0G温度系数下,容值随温度变化的漂移量极小(通常≤±0.3%,25℃~85℃范围内),损耗角正切(tanδ)≤0.15%(1kHz/1Vrms测试条件),适合高频信号传输;
  2. 中高压耐受能力:额定电压630V DC,降额使用可满足更高瞬时电压需求(建议降额20%以上,即实际工作电压≤504V),避免击穿;
  3. 高频特性优异:截止频率高(典型值>1GHz),适合射频、振荡电路等高频应用;
  4. 直流电阻小:内部电极与陶瓷介质的低电阻设计,减少功率损耗。

四、温度与环境适应性

C0G型MLCC的核心优势在于温度稳定性:

  • 环境温度变化对容值影响可忽略,即使在极端温度(-55℃~+125℃)下,容值漂移仍远低于X7R、Y5V等温度系数类型;
  • 湿度适应性:符合IEC 60068-2-66标准,在高湿度环境(90%RH,40℃)下连续工作1000小时,容值变化≤±1%;
  • 耐机械振动:通过振动测试(10~2000Hz,加速度1.5g),焊接后可承受常规机械应力。

五、典型应用场景

结合参数特性,该电容主要应用于以下场景:

  1. 工业电源滤波:开关电源、UPS电源的高压滤波(如输出端滤波、EMI滤波);
  2. 射频耦合与振荡:通信基站、雷达设备的射频前端耦合、谐振回路;
  3. 高压耦合电路:医疗设备(如X光机高压部件)、工业控制设备的信号耦合;
  4. 汽车电子辅助电路:车载高压辅助电源、传感器模块的滤波(需确认车规认证,部分型号符合AEC-Q200);
  5. 仪器仪表电路:示波器、信号发生器的高频振荡、滤波电路。

六、品牌与可靠性保障

PSA信昌电陶是国内领先的MLCC制造商,该产品具备以下可靠性保障:

  • 符合RoHS 2.0、REACH环保标准,无铅环保;
  • 经过高温老化(125℃,1000小时)、温度循环(-55℃~+125℃,1000次)等可靠性测试,失效率≤1Fit(工业级标准);
  • 端电极镀层均匀,焊接强度符合JESD22-B102标准,避免焊接脱落;
  • 产能稳定,可满足批量工业应用需求。

七、选型与使用注意事项

  1. 电压降额:实际工作电压需低于额定电压的80%(即≤504V),避免过压击穿;
  2. 温度范围确认:应用环境温度需在-55℃~+125℃以内,超出范围可能导致容值漂移;
  3. 静电防护:MLCC为静电敏感元件(ESD等级≤2kV),需使用防静电包装与操作工具;
  4. 焊接工艺:采用回流焊时,需遵循IPC温度曲线(峰值温度≤245℃,时间≤10秒),避免过温损坏;
  5. 机械应力:焊接后避免对电容施加过大压力,防止陶瓷介质开裂。

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