WMSIC Electronic Components

PSA FM43X334K501EGG

ModelFM43X334K501EGG
Package1812
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 Date code within 2 years

Available for RFQ

Technical data

Product details

18 specifications

Core information

Product name
PSA FM43X334K501EGG
Type
PSA
Minimum package
500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
PSA
Electronic Component
FM43X334K501EGG
Electronic Component
1
Electronic Component
330nF
Package
1812
Electronic Component
SMD Capacitor(MLCC)
Electronic Component
±10%
Electronic Component
0.326g
Electronic Component
1
Electronic Component
BM0264820215
Electronic Component
X7R
Voltage
500V
Electronic Component
Electronic Component
Electronic Component
500

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

FM43X334K501EGG 贴片多层陶瓷电容(MLCC)产品概述

FM43X334K501EGG是PSA信昌电陶推出的一款高耐压贴片多层陶瓷电容(MLCC),针对工业级、电源类等对耐压、容值稳定性有要求的场景设计,核心参数覆盖330nF容值、500V额定电压、X7R温度特性及1812封装,是中低频电路滤波、耦合的常用选型。

一、产品基本属性与品牌背景

该型号由国内陶瓷电容领域头部厂商信昌电陶(PSA)生产,信昌电陶专注MLCC研发超20年,产品覆盖从通用型到高耐压、高容值的全系列,符合IEC 60384-14等国际标准,在工业控制、电源模块等领域应用广泛。

FM43X334K501EGG属于工业级MLCC,型号命名规则中:

  • “FM43X”为信昌产品系列标识;
  • “334”为容值编码(33×10⁴pF=330nF);
  • “K”代表精度±10%;
  • “501”为额定电压(50×10¹V=500V DC);
  • “EGG”为封装与端接工艺标识。

二、核心电气性能参数解析

2.1 容值与精度

容值为330nF,精度±10%,满足大多数工业电路对容值偏差的要求(如滤波电路的容值波动不影响整体性能)。若需更高精度(如±5%),需参考信昌其他对应型号。

2.2 额定电压与降额

额定电压为500V DC(MLCC额定电压通常标识为直流电压,交流电压需按1.4倍降额,即500V DC对应AC电压约350V)。建议实际工作电压不超过额定电压的80%(即400V DC),避免长期过压导致电容老化、漏电流增大。

2.3 温度系数(X7R)

X7R是MLCC常用温度特性,对应:

  • 工作温度范围:-55℃~125℃;
  • 容值变化率:±15%(相对于25℃时的容值);
  • 优势:宽温稳定性优于Y5V等低温度系数电容,适合工业环境(如户外控制柜、高温车间)。

2.4 其他关键参数

  • 损耗角正切(DF):1kHz下≤5%(典型值),低损耗适合滤波电路;
  • 漏电流(IR):额定电压下≤1μA(25℃时),满足工业级低漏电流要求。

三、封装与物理特性

3.1 封装类型

采用1812封装(英制尺寸,对应公制4.5mm×3.2mm),是贴片MLCC的常用中尺寸封装,适配自动贴装生产线(SMT),焊接效率高。

3.2 尺寸与端接

  • 长:4.5±0.2mm;宽:3.2±0.2mm;厚度:1.2±0.1mm(典型值);
  • 端接工艺:镍电极(Ni)+无铅纯锡(Sn),符合RoHS环保标准,焊接兼容性好(回流焊温度范围220~260℃,符合IPC-A-610标准)。

3.3 包装方式

通常为卷装(Reel),每盘数量3000~5000个,方便SMT设备供料,减少人工干预。

四、典型应用场景

FM43X334K501EGG因高耐压、宽温稳定的特性,主要应用于:

  1. 工业电源模块:开关电源的输出滤波、EMI滤波(抑制高频干扰);
  2. 工业控制电路:PLC、变频器中的信号耦合、去耦电容;
  3. 通信设备:基站电源、光模块的滤波电路;
  4. 汽车电子非安全件:车载充电器、车身控制模块的滤波(需确认是否符合车规,信昌有车规级衍生型号);
  5. 医疗设备辅助电路:如监护仪电源滤波(需结合医疗认证)。

五、选型与使用注意事项

  1. 容值匹配:若需更高容值(如1μF)或更低容值,需换对应型号,避免并联/串联导致性能下降;
  2. 电压验证:实际工作电压需低于400V DC(80%降额),过压易导致电容击穿;
  3. 焊接工艺:回流焊需控制温度曲线,避免热应力过大导致电容开裂(建议采用慢升温、短峰值时间);
  4. 存储条件:常温干燥环境(温度25±5℃,湿度≤60%),若长期暴露在潮湿环境,需120℃烘烤24小时后使用;
  5. 环境温度:避免工作温度超过125℃,否则容值下降超过15%,影响电路性能。

综上,FM43X334K501EGG是一款性能稳定、适配性强的工业级高耐压MLCC,可满足多数中低频电路的滤波、耦合需求,是工业电源、控制电路的常用选型。

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