WMSIC Electronic Components

PSA FM31X473K631EEG

ModelFM31X473K631EEG
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 FM31X473K631EEG
Type
PSA
Minimum package
2000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
PSA
Electronic Component
FM31X473K631EEG
Electronic Component
1
Electronic Component
47nF
Package
1206
Electronic Component
SMD Capacitor(MLCC)
Electronic Component
±10%
Electronic Component
0.053g
Electronic Component
1
Electronic Component
BM0264820225
Electronic Component
X7R
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.

FM31X473K631EEG 贴片多层陶瓷电容(MLCC)产品概述

一、产品基本定位与品牌依托

FM31X473K631EEG是PSA信昌电陶推出的工业级高压贴片MLCC,专为需要高耐压、宽温稳定性的电路设计。信昌电陶作为国内专业MLCC制造商,拥有10余年陶瓷配方研发与自动化生产经验,产品覆盖消费电子、工业控制、新能源等领域;该型号依托品牌成熟的镍电极工艺与陶瓷介质技术,兼具性能可靠性与成本优势,适配中高端高压电路需求。

二、核心电气性能参数详解

该产品的核心参数精准匹配高压应用场景,关键指标如下:

1. 容值与精度

标称容值为47nF(对应代码“473”,即47×10³ pF),精度等级为**±10%(K档)**,可满足多数电路对容值稳定性的基本要求,无需额外高精度校准,适配滤波、耦合等常规高压功能。

2. 额定电压

630V直流额定电压是核心亮点,覆盖工业高压电路的典型工作范围(如220V交流整流后的310V直流母线、100-300V LED驱动输出),无需并联多颗低耐压电容,简化电路设计并降低空间占用。

3. 温度系数

采用X7R温度特性,符合IEC 60384-1标准:

  • 工作温度范围:-55℃至+125℃;
  • 容值变化率:±15%以内(25℃为基准);
  • 损耗角正切(tanδ):≤0.015(1kHz/25℃),远低于Y5V等介质,减少高频损耗。

4. 绝缘性能

绝缘电阻≥10^9Ω(25℃/100V),确保高压下无漏电流风险,适配医疗、工业等对绝缘要求严格的场景。

三、封装尺寸与物理特性

产品采用1206英制贴片封装(公制3216,即3.2mm×1.6mm),是高密度PCB设计的标准封装,具体特性:

1. 尺寸规格

典型尺寸:3.2±0.2mm(长)×1.6±0.2mm(宽)×0.8±0.1mm(厚),厚度适中,既保证耐压能力,又适配多数PCB的布线密度(可在1.6mm厚PCB上实现高密度布局)。

2. 电极与焊端

  • 内电极:镍(Ni)基材料,抗氧化性强,提升长期可靠性;
  • 外焊端:锡(Sn)镀覆,兼容回流焊、波峰焊等标准工艺,焊端附着力≥10N,降低焊接不良率。

3. 环保特性

符合RoHS 2.0与REACH指令,无铅无镉,满足国际市场环保要求。

四、典型应用场景分析

FM31X473K631EEG的高压特性与宽温稳定性,使其在多个领域具备广泛适配性:

1. 开关电源(AC-DC/DC-DC)

用于高压侧滤波(如220V交流输入整流后的直流滤波),630V耐压覆盖310V母线电压,X7R宽温适配电源设备的温度波动(如机房、户外电源柜)。

2. LED驱动电源

高压LED驱动的输出端滤波(如100-300V高压输出),稳定电压波动,延长LED寿命;同时适配户外LED显示屏的宽温环境(-20℃至+60℃)。

3. 工业控制设备

PLC、变频器的高压控制电路,抗振动与宽温特性适配工业现场的复杂环境(如车间振动、温度变化)。

4. 新能源领域

光伏逆变器、充电桩的高压侧滤波,应对户外环境的温度变化(-40℃至+85℃)与电压波动,提升设备可靠性。

5. 医疗设备

部分医疗仪器的辅助高压电路(如监护仪的高压供电),稳定的绝缘性能与宽温特性满足医疗级应用的基本要求。

五、可靠性与环境适应性

该产品通过多项行业测试,确保恶劣环境下的稳定工作:

1. 电压可靠性

额定电压下的寿命测试(1000小时)符合IEC 60384-1标准,容值衰减≤5%;实际应用建议采用70%降额设计(最高工作电压≤441V),进一步延长寿命至10万小时以上。

2. 温度循环测试

经过-55℃至+125℃的1000次循环测试,容值变化率≤5%,绝缘电阻≥10^8Ω,适配极端温度场景。

3. 机械可靠性

  • 振动测试:10-2000Hz,加速度1.5g,无开路/短路;
  • 冲击测试:峰值加速度1000g,持续0.5ms,焊端无脱落。

4. 湿度适应性

85℃/85%RH湿热测试(1000小时),容值变化率≤10%,绝缘电阻≥10^9Ω,满足高湿度环境(如沿海地区设备)。

六、选型优势与注意事项

1. 选型优势

  • 高压与宽温平衡:630V耐压搭配X7R宽温,无需在耐压与温度稳定性间妥协;
  • 性价比突出:PSA成熟工艺降低成本,适合批量应用(如电源厂商、LED驱动厂商);
  • 供货稳定:信昌电陶年产能超50亿只,减少供应链风险。

2. 选型注意事项

  • 电压匹配:需确认电路最高工作电压≤额定电压的70%(降额设计);
  • 精度需求:若电路对容值精度要求高于±10%,需选择J档(±5%)或更高精度型号;
  • 封装适配:1206封装需确认PCB焊盘尺寸(建议焊盘长1.8-2.0mm,宽1.2-1.4mm),避免焊接不良。

总结

FM31X473K631EEG作为PSA信昌电陶的高压MLCC,凭借630V耐压、X7R宽温稳定性与1206标准封装,成为工业高压电路、电源设备等领域的可靠选型,兼具性能可靠性与成本优势,适配中高端应用需求。

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