WMSIC Electronic Components

FH 0201B391K500NT

Model0201B391K500NT
Package0201
BrandFH
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+

Available for RFQ

Technical data

Product details

18 specifications

Core information

Product name
FH 0201B391K500NT
Type
FH
Minimum package
15000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
FH
Electronic Component
0201B391K500NT
Electronic Component
1
Electronic Component
390pF
Package
0201
Electronic Component
SMD Capacitor(MLCC)
Electronic Component
±10%
Electronic Component
0.008g
Electronic Component
10
Electronic Component
BM0264897125
Electronic Component
X7R
Voltage
50V
Electronic Component
Electronic Component
Electronic Component
15000

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

0201B391K500NT 产品概述

一、产品简介

0201B391K500NT 是风华(FH)系列的贴片多层陶瓷电容(MLCC),关键参数如下:

  • 容值:390 pF
  • 精度:±10%(K)
  • 额定电压:50 V DC
  • 温度特性:X7R(典型工作温度范围 -55°C 至 +125°C,容值随温度变化在规格范围内)
  • 封装:0201(超小型表贴封装,适用于高密度安装)
  • 包装方式:常见为卷盘(Tape & Reel),便于贴片机自动化装配

该型号面向要求超小体积与中等电容值的应用场景,兼顾尺寸限制与良好的电气稳定性,适合现代移动、消费与高密度电子产品的电路设计。

二、主要性能与特点

  • 超小体积:0201 封装显著节省PCB空间,有利于高密度布板与轻薄化设计。
  • 温度稳定性:采用 X7R 陶瓷材料,能够在 -55°C 至 +125°C 温度区间内保持较稳定的电容特性(通常在 ±15% 以内)。
  • 良好的体积效率:相对于NP0/C0G等温度系数更低的材料,X7R在相同体积下能够提供更大的电容量,适用于需要中等容值的去耦与滤波。
  • 工艺兼容性:适用于自动贴装与回流焊工艺(按制造商回流曲线执行,常见无铅回流峰值温度≤260°C)。
  • 适用电压:50 V 额定电压满足常见模拟信号、滤波与旁路应用的电压需求。

三、典型应用场景

  • 去耦与旁路:靠近IC电源引脚作为局部去耦,减少电源噪声与瞬态干扰。
  • 高频滤波/耦合:用于信号链路的耦合电容或高频滤波网络,尤其在空间受限的射频前端与滤波器中常见。
  • 振荡器/定时电路:与电阻、电感等元件配合使用于振荡或定时电路。
  • 移动与可穿戴设备、物联网终端、消费电子(智能手机、平板、蓝牙耳机等)以及高密度模块化电源模块。

四、选型与设计注意事项

  • 直流偏置效应:X7R 等高介电常数材料在施加直流偏压时会出现容量下降,尤其在较高电压下更明显。在要求高精度电容值的场合,应对DC bias进行评估或适当选型留有裕量。
  • 温度与老化:X7R具备宽温区稳定性,但仍存在随温度与时间的容量漂移(陶瓷老化,容量随时间按对数关系缓慢减少)。设计时应考虑这些变化并留有裕度。
  • 布局建议:为发挥最佳去耦效果,贴片应尽量靠近被去耦的IC电源引脚,走线最短且阻抗最小。避免将0201器件置于板边或机械应力集中区,减少裂纹风险。
  • 焊接工艺:按厂商提供的回流曲线进行,无铅回流峰值一般不超过260°C。若长期储存或长时间暴露于潮湿环境,装配前可参考干燥/烘烤建议。
  • 焊盘与元件间距:0201体积极小,建议参照风华或行业推荐的封装布局(推荐焊盘尺寸与焊膏模板开孔),以保证焊点可靠性与贴装良率。

五、可靠性与装配要点

  • 机械应力敏感性:0201体积小但相对脆弱,PCB弯曲、螺丝夹紧或波峰焊不当可能引起电容裂纹,导致失效或参数漂移。设计时避免在器件周围产生过大应力。
  • 测试与质量控制:常见可靠性验证包括温度循环、湿热(HAST/HTSL)、机械振动与冲击、焊接热循环及外观/焊接性检查。生产批次建议保留制造批号和检验记录以便追踪。
  • 贴装工艺:采用自动贴片机与合适的吸嘴,校正吸附力与贴装压力以减少对器件的机械冲击。对0201器件,良好的视检或AOI检测有助于提高产率。

六、采购与使用建议

  • 产能与备货:0201 元件在小尺寸、高密度设计中需求稳定,建议根据生产计划留取一定备件量以应对装配损耗与返工。
  • 资料索取:向供应商索取完整的元件规格书、回流曲线、可靠性测试报告与封装尺寸图,确保PCB设计与工艺参数与器件匹配。
  • 替代与兼容:在对电容容值、温度特性和直流偏置敏感的电路中,评估是否需要改用更大封装或不同介质(如NP0/C0G)以满足性能要求。

总结:0201B391K500NT 以其超小封装和中等容值,适合在空间受限但对去耦与滤波有需求的现代电子产品中使用。设计时应重视直流偏置、温度与老化影响,以及装配过程中的机械应力管理,以保证长期可靠性和电路性能。若需更详细的封装尺寸、回流曲线或可靠性数据,请向风华获取该型号的完整规格书。

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