WMSIC Electronic Components

Walsin 0805B222K251CT

Model0805B222K251CT
Package0805
Brand(Walsin)
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

20 specifications

Core information

Product name
(Walsin) 0805B222K251CT
Type
WALSIN
Unit
Electronic Component
Minimum package
4000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
(WALSIN)
Electronic Component
0805B222K251CT
Electronic Component
1
Electronic Component
2.2nF
Package
0805
Electronic Component
SMD Capacitor(MLCC)
Electronic Component
±10%
Electronic Component
0.034g
Electronic Component
1
Electronic Component
BM0265429564
Electronic Component
X7R
Voltage
250V
Electronic Component
Electronic Component
Electronic Component
4000

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

华新科0805B222K251CT多层陶瓷电容器(MLCC)产品概述

一、产品核心参数与型号解读

华新科0805B222K251CT是一款通用型多层陶瓷电容器(MLCC),型号各部分直接对应核心性能参数,拆解如下:

  • 封装标识:0805(英制)/2012(公制),尺寸约2.0mm×1.2mm,属于小型表面贴装封装,适配高密度PCB设计;
  • 容值编码:222 → 22×10²pF = 2200pF = 2.2nF;
  • 精度等级:K → ±10%(工业级常规精度,满足多数电路需求);
  • 额定电压:250V(型号中“25”关联,高于常规0805封装MLCC的100V/160V,覆盖中高压场景);
  • 温度系数:X7R → 工作温度范围-55℃~+125℃,容值波动≤±15%,属于高稳定性温度特性。

基础参数汇总:

参数项 具体值 容值 2.2nF(2200pF) 精度 ±10% 额定电压 250V 温度系数 X7R 封装 0805(2012公制) 品牌 华新科(Walsin)

二、关键性能特性

  1. 宽温稳定适配:X7R温度系数使其在-55℃至+125℃范围内,容值波动控制在±15%以内,无需额外补偿即可满足工业环境的宽温要求(如户外设备、车载辅助电路);
  2. 中高压场景兼容:250V额定电压突破常规0805封装的电压限制,可覆盖开关电源、LED驱动等中高压电路的滤波/去耦需求;
  3. 小体积高集成:0805封装体积紧凑,比电解电容缩小数倍,适合小型化产品(如机顶盒、路由器);
  4. 低损耗与可靠性:MLCC固有的低ESR(等效串联电阻)、低ESL(等效串联电感)特性,配合华新科的陶瓷材料工艺,可降低电路损耗,且抗振动、抗冲击性能优于电解电容,长期使用稳定性好。

三、典型应用场景

这款电容器属于通用型MLCC,主要用于以下场景:

  • 工业控制:PLC、变频器、伺服驱动器的电源滤波、信号去耦,适应工业现场的振动与宽温;
  • 消费电子电源:电视机、显示器的开关电源输出滤波,稳定直流电压;
  • LED驱动:LED路灯、面板灯的驱动电源稳压,抑制电压波动;
  • 通信设备:路由器、交换机的电源模块滤波,减少电磁干扰(EMI);
  • 小型家电:电饭煲、加湿器的控制电路去耦,提升电路稳定性。

四、封装与可靠性说明

  1. 封装细节:0805(2012公制)为表面贴装型,引脚采用镍锡镀层,兼容回流焊、波峰焊等自动化贴装工艺,焊接后可靠性高;
  2. 可靠性验证:华新科对该产品完成了常规可靠性测试,包括温度循环(-55℃+125℃,1000次)、振动测试(102000Hz,2g加速度)、湿度测试(85℃/85%RH,1000h),满足工业级产品的基本要求;
  3. 无极性设计:MLCC无极性,安装时无需区分正反,简化生产流程,降低出错率。

五、选型与使用注意事项

  1. 电压降额:建议工作电压不超过额定电压的80%(即≤200V),延长产品寿命,避免过压损坏;
  2. 温度范围匹配:若实际温度超出-55℃+125℃,需更换X5R(-40℃+85℃)或NPO(更高精度)等温度系数的产品;
  3. 焊接工艺:回流焊峰值温度控制在245℃±5℃,时间≤10s,避免过温导致陶瓷开裂;
  4. 精度需求调整:若需±5%高精度,需选择型号带“J”的替代产品,本款K级精度适合常规场景。

总结

华新科0805B222K251CT是一款性价比突出的通用MLCC,凭借宽温稳定、中高压适配、小体积等特性,广泛适用于工业、消费电子等领域的电源滤波与信号去耦场景,是电路设计中常用的基础元器件之一。

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