WMSIC Electronic Components

Walsin 0805B225K500CT

Model0805B225K500CT
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

18 specifications

Core information

Product name
(Walsin) 0805B225K500CT
Type
WALSIN
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
(WALSIN)
Electronic Component
0805B225K500CT
Electronic Component
1
Electronic Component
2.2uF
Package
0805
Electronic Component
SMD Capacitor(MLCC)
Electronic Component
±10%
Electronic Component
0.034g
Electronic Component
1
Electronic Component
BM0265085261
Electronic Component
X7R
Voltage
50V
Electronic Component
Electronic Component
Electronic Component
3000

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

0805B225K500CT 片式陶瓷电容产品概述

一、产品基本身份信息

  • 品牌:华新科(Walsin),全球知名被动元器件制造商,MLCC(片式多层陶瓷电容)技术成熟可靠;
  • 产品型号:0805B225K500CT,型号编码规则清晰:0805为封装尺寸,B代表通用型,225为容值代码(22×10⁵pF),K为精度代码(±10%),500为额定电压(50VDC),CT为端电极类型代码;
  • 封装类型:片式多层陶瓷电容(MLCC),采用多层陶瓷叠层结构;
  • 封装尺寸:英制0805(对应公制2012),具体规格为长度2.0±0.2mm、宽度1.2±0.2mm、厚度0.8±0.1mm(典型值),适配高密度PCB布局。

二、核心电气参数详解

1. 容值与精度

标称容值为2.2μF(225pF换算值),精度±10%(代码K),满足90%以上通用电路对容值偏差的要求,无需额外匹配高精度电容,降低设计成本。

2. 额定电压

直流额定电压50VDC,为电容安全工作的最大电压阈值;实际应用需避免超过此值,否则可能导致电容击穿或性能不可逆衰减。

3. 温度系数

采用X7R温度系数,定义为:

  • 工作温度范围:-55℃~+125℃;
  • 容值变化率:±15%以内(典型值);
    是MLCC中稳定性较好的类型,优于Y5V等低稳定型,宽温下容值漂移小,保障电路性能一致性。

4. 典型辅助参数

  • 绝缘电阻(IR):≥10GΩ(25℃、10V直流下),防止漏电流影响电路;
  • 损耗角正切(tanδ):≤1%(1kHz、25℃下),能量损耗低,适合滤波、耦合等场景。

三、封装与物理特性

1. 结构设计

内部采用陶瓷介质与镍电极交替叠层,外部端电极为镍锡(Ni/Sn)镀层,兼顾焊接兼容性与抗氧化性,避免长期使用后镀层脱落。

2. 环保合规

符合RoHS 2.0指令(无铅、无镉、无汞等有害物质),同时满足无卤素要求,适配全球市场环保标准,无需额外环保认证适配。

3. 焊接兼容性

支持回流焊、波峰焊(需遵循推荐工艺参数):

  • 回流焊峰值温度:245±5℃,焊接时间≤10秒;
  • 波峰焊:需使用专用夹具,避免电容受机械应力损伤。

四、典型应用场景

1. 消费电子

智能手机、平板电脑、智能穿戴设备的电源滤波、信号耦合与旁路,紧凑封装适配小型化PCB设计,宽温范围满足手持设备温度波动。

2. 工业控制

PLC(可编程逻辑控制器)、传感器模块、电机驱动电路的电源去耦与信号滤波,X7R温度稳定性适配工业环境(-40℃~+85℃常规范围),保障系统可靠性。

3. 低压汽车辅助系统

12V车载电子设备(车载音响、仪表盘、辅助传感器)的滤波电路,容值精度与温度稳定性适配车载环境,避免电磁干扰影响信号传输。

4. 通信设备

路由器、交换机、无线基站的中频信号耦合与电源滤波,2.2μF容值覆盖中低频段需求,损耗低保障信号质量。

五、产品优势与可靠性

  1. 温度稳定性强:X7R系数抑制宽温下容值漂移,避免电路性能波动;
  2. 容值精度可靠:±10%精度满足大部分通用场景,无需额外调试;
  3. 封装紧凑高效:0805尺寸节省PCB空间,适配高密度集成设计;
  4. 工艺成熟耐用:华新科MLCC生产工艺历经多年验证,焊接良率高,长期使用故障率低。

六、应用注意事项

  1. 电压与温度限制:实际工作电压≤50VDC,温度需在-55℃~+125℃范围内;
  2. 降额使用建议:长期可靠应用建议电压降额至80%(≤40VDC),高温环境(>100℃)下进一步降低电压;
  3. 存储条件:未开封产品存储于-10℃~+40℃、相对湿度≤60%环境,开封后12个月内使用完毕,避免端电极氧化;
  4. 机械应力防护:焊接后避免电容受挤压、弯曲,防止内部陶瓷介质开裂。

该产品是通用型MLCC的典型代表,平衡了稳定性、精度与成本,广泛适配消费电子、工业、汽车等多领域低压电路需求。

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