WMSIC Electronic Components

Walsin 0805B103K251CT

Model0805B103K251CT
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 Date code within 2 years

Available for RFQ

Technical data

Product details

20 specifications

Core information

Product name
(Walsin) 0805B103K251CT
Type
WALSIN
Unit
Electronic Component
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
(WALSIN)
Electronic Component
0805B103K251CT
Electronic Component
1
Electronic Component
10nF
Package
0805
Electronic Component
SMD Capacitor(MLCC)
Electronic Component
±10%
Electronic Component
0.034g
Electronic Component
1
Electronic Component
BM0258712255
Electronic Component
X7R
Voltage
250V
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.

0805B103K251CT 多层陶瓷电容器产品概述

0805B103K251CT是华新科(Walsin)推出的多层陶瓷电容器(MLCC),采用0805(2012公制)表面贴装封装,适配中高压、中等容量的电子电路需求,凭借X7R陶瓷材料的稳定性能,广泛应用于电源、工业控制等领域。

一、产品基本属性

该型号为华新科常规商业级MLCC,核心定位是中高压滤波/耦合/储能,无极性设计简化电路布局,表面贴装工艺适配自动化生产,是高密度PCB设计的常用元件之一。

二、核心技术参数(关键指标)

参数项 规格说明 备注 标称容值 10nF(103) 三位有效数字:10×10³pF 容值精度 ±10%(K) EIA精度代码K对应±10% 额定电压 250V(251) 电压代码251=25×10¹V 温度系数 X7R 工作温度-55℃~+125℃,容变±15% 损耗角正切(tanδ) 典型值<1%(1kHz,25℃) 频率特性稳定 绝缘电阻(IR) 典型值>10⁹Ω(25℃,100V) 高压下绝缘性能优异

三、封装与物理特性

  1. 封装尺寸:0805英制(对应公制2012),典型尺寸为2.0mm×1.2mm×1.0mm(长×宽×高),体积紧凑;
  2. 焊盘设计:符合IPC-7351标准,表面镀锡(无铅),适配回流焊、波峰焊工艺;
  3. 机械强度:多层陶瓷结构经烧结成型,抗机械冲击能力优于单层电容,可承受常规PCB组装应力。

四、材料特性与性能优势

采用X7R钛酸钡基陶瓷材料,是MLCC中性能均衡的主流材质,核心优势包括:

  • 温度稳定性好:-55℃~+125℃范围内,容值变化不超过±15%,避免极端温度下性能漂移;
  • 中高压耐受:250V额定电压适配多数工业/电源电路的高压需求,无需额外降额过多;
  • 损耗低:1kHz下tanδ<1%,减少电路功耗,适合信号耦合场景;
  • 容量密度高:多层结构实现小体积大容量(10nF),满足高密度PCB布局要求。

五、典型应用场景

结合参数特性,该型号主要应用于以下领域:

  1. 电源系统:开关电源、线性电源的高压侧滤波(如AC-DC转换后的300V左右直流侧)、LED驱动电源的耦合电容;
  2. 工业控制:PLC、变频器、伺服驱动器的控制回路滤波,抗电磁干扰(EMI);
  3. 消费电子:高端电源适配器、智能家电的电源模块,替代电解电容实现小体积滤波;
  4. 通信设备:小型基站、路由器的中频信号耦合,适配中等频率(10kHz~100MHz)需求。

六、可靠性与环保认证

华新科对该型号进行了严格可靠性测试,满足:

  • 环境认证:符合RoHS 2.0(无铅、无镉)、REACH法规,环保无毒;
  • 安全认证:通过UL认证(认证号E327440),符合UL 1414标准;
  • 可靠性测试:
    • 高温寿命:125℃、250V下1000小时,容值变化<±5%,绝缘电阻无明显下降;
    • 湿度负荷:85℃/85%RH、250V下500小时,性能稳定;
    • 温度循环:-55℃~+125℃循环1000次,无开裂、容值漂移。

七、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),延长使用寿命;
  2. 温度限制:避免长期工作在125℃以上,否则容值会持续下降;
  3. 焊接工艺:回流焊峰值温度控制在245±5℃,时间不超过10秒,避免过焊导致陶瓷开裂;
  4. 机械应力:0805封装较小,PCB弯曲度需控制在0.5%以内,避免机械冲击;
  5. 偏置电压影响:X7R材质容值会随直流偏置电压略有下降(250V下约5-10%),选型时需预留容值余量。

该型号凭借稳定的性能、紧凑的封装和可靠的质量,是中高压电路设计中替代电解电容的理想选择,适配多数常规电子设备的生产需求。

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