WMSIC Electronic Components

CL21B475KAB6PNE

ModelCL21B475KAB6PNE
Package0805
BrandSAMSUNG
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
SAMSUNG CL21B475KAB6PNE
Type
SAMSUNG
Minimum package
2000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
SAMSUNG
Electronic Component
CL21B475KAB6PNE
Electronic Component
1
Electronic Component
4.7uF
Package
0805
Electronic Component
SMD Capacitor(MLCC)
Electronic Component
±10%
Electronic Component
0.045g
Electronic Component
1
Electronic Component
BM0266109398
Electronic Component
X7R
Voltage
25V
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.

CL21B475KAB6PNE 产品概述

CL21B475KAB6PNE是三星电子推出的车规级多层陶瓷电容(MLCC),专为汽车电子领域的宽温、高可靠性场景设计,兼顾小型化与电气性能稳定性,是车载电子系统中滤波、耦合等功能的核心被动元件之一。

一、产品核心身份与定位

该型号属于三星车规MLCC产品线,型号编码对应明确的技术特征:

  • "CL21"为三星通用型车规MLCC系列标识;
  • "B"代表封装类型(0805英制封装);
  • "475"为容值代码(47×10⁵ pF=4.7μF);
  • "K"为精度代码(EIA标准±10%);
  • "AB6"对应X7R温度系数与25V额定电压;
  • "PNE"为车规级认证与封装细节标识。

其核心定位是汽车电子低电压场景的通用被动元件,覆盖车载信息娱乐、传感器、车身控制等多类模块,替代普通民用电容以满足汽车环境的可靠性要求。

二、关键电气性能参数

1. 容值与精度

标称容值为4.7μF,精度±10%(代码K),既避免容值偏差过大影响信号完整性,又具备批量生产一致性。容值采用EIA标准标识(475),便于工程师快速识别,适配滤波、耦合等基础功能需求。

2. 额定电压

额定工作电压为25V DC,适配车载12V/24V电源系统的辅助电路(如传感器供电、小信号处理),电压裕量充足(实际工作电压远低于额定值),可有效降低击穿风险,提升长期可靠性。

3. 温度系数

采用X7R温度特性,是车规MLCC中最常用的宽温方案:

  • 工作温度范围:-55℃ ~ +125℃(覆盖汽车环境的极端温度变化,如冬季低温、夏季发动机舱高温);
  • 容值变化率:±15%以内(全温区保持容值稳定,避免信号失真或滤波效果下降)。

三、封装与物理特性

1. 封装尺寸

采用0805英制封装(对应公制2012,即2.0mm×1.2mm),尺寸紧凑,适配车载电子系统的高密度PCB设计(如摄像头模块、胎压监测传感器等小型化组件),有效节省电路板空间。

2. 封装可靠性

封装采用陶瓷-金属复合结构,电极采用镍基材料(抗老化、低电阻),焊接兼容性良好,支持回流焊、波峰焊等主流SMT工艺,无铅环保(符合RoHS标准),满足汽车电子的量产工艺要求。

四、车规级可靠性设计

CL21B475KAB6PNE通过AEC-Q200汽车电子可靠性认证,针对汽车环境的特殊要求做了以下优化:

  • 耐振动性能:陶瓷层与电极结合强度高,可承受汽车行驶中的高频振动(如发动机舱振动),避免开路或短路;
  • 温度循环稳定性:经过-40℃~+125℃数千次温度循环测试,容值与绝缘电阻无明显衰减;
  • 耐湿度性能:封装密封性好,可抵抗高湿环境(如沿海地区),避免潮气侵入导致绝缘性能下降;
  • 长期可靠性:额定条件下预计使用寿命超过10年,符合汽车电子的长生命周期要求。

五、典型应用场景

该型号广泛应用于车载电子系统的多个核心模块:

  1. 车载信息娱乐系统:中控屏音频模块的电源滤波(抑制噪声)、信号耦合(传输音频);
  2. 汽车传感器模块:胎压监测(TPMS)、摄像头、温度传感器的电源去耦(稳定供电);
  3. 车身控制单元(BCM):车门控制、灯光控制、车窗升降电路的小信号耦合与滤波;
  4. 辅助驾驶系统:毫米波雷达、超声波传感器的电源滤波(确保信号精度,避免干扰)。

六、品牌与品质保障

三星电子作为全球领先的被动元件供应商,其车规MLCC具备以下优势:

  • 批量一致性:自动化生产工艺确保容值、精度、可靠性的一致性达行业领先水平;
  • 供货稳定性:大规模产能可满足汽车Tier1供应商的量产需求,降低供应链风险;
  • 技术支持:提供专业的应用设计支持(如电路匹配建议、可靠性测试方案),助力客户快速导入产品。

综上,CL21B475KAB6PNE是一款专为汽车电子场景优化的高可靠性MLCC,兼顾小型化、宽温稳定性与电气性能,是车载电子系统中替代普通民用电容的理想选择。

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