WMSIC Electronic Components

Walsin 0402B224K100CT

Model0402B224K100CT
Package0402
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) 0402B224K100CT
Type
WALSIN
Unit
Electronic Component
Minimum package
10000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
(WALSIN)
Electronic Component
0402B224K100CT
Electronic Component
1
Electronic Component
220nF
Package
0402
Electronic Component
SMD Capacitor(MLCC)
Electronic Component
±10%
Electronic Component
0.012g
Electronic Component
1
Electronic Component
BM0265085245
Electronic Component
X7R
Voltage
10V
Electronic Component
Electronic Component
Electronic Component
10000

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

华新科0402B224K100CT 多层陶瓷电容产品概述

一、产品命名与核心参数解析

华新科0402B224K100CT是一款小型化多层陶瓷电容(MLCC),型号遵循行业通用规则,各部分含义清晰:

  • 0402:封装代码(英制),对应公制尺寸1005(长×宽=1.0mm×0.5mm);
  • B:华新科常规小型MLCC系列标识;
  • 224:容值代码,代表22×10⁴ pF = 220nF(0.22μF);
  • K:容值精度,对应±10%;
  • 100:额定直流电压(DC),即10V;
  • CT:封装细节与工艺版本标识(适配无铅焊接)。

核心参数完全匹配需求:容值220nF、精度±10%、电压10V、温度系数X7R,是低电压场景的经典选型。

二、封装尺寸与物理特性

该电容采用0402封装(公制1005),是便携式设备的主流小型封装,华新科官方标准尺寸如下:

尺寸参数 数值 公差 长度(L) 1.0mm ±0.1mm 宽度(W) 0.5mm ±0.1mm 厚度(T) 0.5mm ±0.1mm 电极宽度(E) 0.35mm ±0.1mm 电极间距(S) 0.3mm ±0.1mm

物理上采用镍电极多层叠层工艺,端电极为Ni/无铅锡三层结构,符合RoHS环保要求(无铅无卤),适配现代电子设备的环保标准。

三、性能特性与可靠性

3.1 温度稳定性(X7R系数)

X7R是MLCC的通用温度系数,定义为:

  • 工作温度范围:-55℃ ~ +125℃;
  • 容值变化率:±15%(相对于25℃基准值)。

该特性使其能在宽温环境下保持稳定,适用于手机、车载低温启动等场景。

3.2 电气性能

  • 额定电压:10V DC,实际建议降额至8V以下(延长寿命);
  • ESR(等效串联电阻):1kHz下约10mΩ(典型值),低ESR适合高频滤波;
  • ESL(等效串联电感):约0.5nH(极低),适配射频与高速数字电路;
  • 绝缘电阻:25℃下≥10⁹Ω(10V测试),长期工作性能稳定。

3.3 可靠性验证

通过多项行业标准测试:

  • 温度循环:-55℃~125℃循环1000次,容值变化≤±10%;
  • 湿度试验:85℃/85%RH 1000小时,绝缘电阻≥10⁸Ω;
  • 焊接可靠性:无铅回流焊峰值245℃,焊接后无开裂、虚焊。

四、典型应用场景

因尺寸小、性能均衡,广泛用于:

  1. 消费电子:智能手机、平板的电源滤波(去除50Hz~10kHz噪声)、音频/射频信号耦合;
  2. 便携式设备:蓝牙耳机、智能手表的电池管理系统(BMS)滤波、传感器信号处理;
  3. 通信模块:WiFi、蓝牙模块的去耦电容(减少电源噪声干扰);
  4. 工业控制:小型PLC、物联网网关的低电压电路滤波(适配12V以下电源);
  5. 汽车电子:车载USB接口、仪表盘背光电路的辅助滤波(满足-40℃~85℃工作温度)。

五、选型与应用注意事项

  1. 电压降额:实际工作电压≤8V(额定电压80%),避免长期电压应力;
  2. 温度限制:125℃以上容值变化超差,高温场景建议选X8R(-55℃~150℃);
  3. 焊接工艺:回流焊峰值240~250℃,时间≤10秒,避免热应力开裂;
  4. 静电防护:陶瓷电容易受静电损坏,操作需接地,用防静电工具;
  5. 精度升级:若需±5%精度,可选同系列0402B224J100CT(J级精度)。

该产品是华新科成熟的小型化MLCC,平衡了尺寸、性能与成本,是低电压、宽温环境电子设计的可靠选型。

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