WMSIC Electronic Components

Walsin 0603B681K500CT

Model0603B681K500CT
Package0603
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) 0603B681K500CT
Type
WALSIN
Minimum package
4000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
(WALSIN)
Electronic Component
0603B681K500CT
Electronic Component
1
Electronic Component
680pF
Package
0603
Electronic Component
SMD Capacitor(MLCC)
Electronic Component
±10%
Electronic Component
0.035g
Electronic Component
1
Electronic Component
BM0265809387
Electronic Component
X7R
Voltage
50V
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0603B681K500CT陶瓷电容器产品概述

华新科(Walsin)作为全球被动元件领域的头部制造商,其0603B681K500CT型号多层陶瓷电容器(MLCC)是针对通用电子场景设计的小型化表面贴装元件,凭借稳定的电气性能、紧凑封装及可靠介质特性,成为消费电子、工业控制等领域的常用选型。以下从核心标识、参数特性、应用等维度展开详细概述。

一、产品核心身份与型号解读

该型号命名规则清晰传递关键信息,便于工程师快速识别:

  • 0603:英制封装代码,对应公制尺寸1608(长度1.6mm×宽度0.8mm),属于小型化表面贴装封装;
  • B:代表华新科通用MLCC系列标识;
  • 681:容值编码,68×10¹ = 680pF(皮法);
  • K:精度等级,对应**±10%**(电容值允许偏差范围);
  • 500:额定电压,代表50V直流/交流工作电压上限;
  • CT:封装/批次辅助标识,明确产品封装类型及生产批次信息。

产品类别为多层陶瓷电容器,介质类型为X7R,是华新科通用MLCC产品线的核心型号之一。

二、关键电气与物理参数

2.1 电气性能参数

参数名称 数值/规格 说明 标称容值 680pF(681) 标准电容值 精度等级 ±10%(K) 容值偏差范围 额定电压 50V DC/AC 连续工作电压上限 温度系数 X7R(-55℃~+125℃) 容值变化≤±15%(温度范围内) 频率特性 适用1MHz以下通用频率 低至中频段性能稳定

2.2 物理与封装参数

  • 封装尺寸:1608公制(0603英制),典型尺寸:长1.6±0.1mm×宽0.8±0.1mm×厚0.8±0.1mm(部分批次厚度略有差异);
  • 电极类型:端电极采用镍/锡镀层(Ni/Sn),兼容回流焊、波峰焊等表面贴装工艺;
  • 环保标准:符合RoHS 2.0、REACH等国际环保法规,无铅无卤设计。

三、X7R介质材料的核心特性

X7R是MLCC常用介质材料,其特性直接决定产品的温度稳定性与适用场景:

  1. 温度范围广:工作温度覆盖-55℃至+125℃,满足工业、汽车辅助系统的温度需求;
  2. 容值稳定性较好:额定温度范围内容值变化≤±15%,优于Y5V等低成本介质;
  3. 电压/频率特性适中:容值随直流偏置电压变化较小(远小于Y5V),适合中低电压、中频段滤波/耦合;
  4. 成本与性能平衡:相较于NP0(高精度、低温度系数),X7R在稳定性与成本间实现优化,适合通用场景而非高频高精度需求。

四、典型应用场景

0603B681K500CT因尺寸紧凑、性能稳定,广泛应用于以下领域:

  • 消费电子:智能手机、平板、智能穿戴的信号滤波、耦合电路(如音频模块、射频前端辅助电路);
  • 工业控制:PLC、传感器模块的电源去耦、信号隔离电路;
  • 汽车电子:车载信息娱乐系统、车身控制模块(BCM)的小信号处理电路(部分批次符合AEC-Q200汽车级标准);
  • 通信设备:路由器、交换机、无线AP的电源滤波、数字信号耦合电路;
  • 小型电源:低功率DC-DC转换器、电池管理系统(BMS)的辅助滤波电路。

五、品牌与可靠性优势

华新科作为成熟厂商,该型号具备以下可靠性优势:

  1. 工艺成熟:高精度多层印刷、叠层技术确保容值一致性与批次稳定性;
  2. 测试严苛:通过125℃/2000小时高温寿命、85℃/85%RH/1000小时湿度测试,失效率低;
  3. 供应链稳定:全球生产基地布局,产能充足,满足批量需求;
  4. 技术支持完善:提供详细datasheet与应用指导,助力电路优化。

六、选型与使用注意事项

为确保性能稳定,使用时需注意:

  1. 电压降额:实际工作电压不超过额定电压的80%(即40V),避免介质老化;
  2. 温度匹配:不超出-55℃~+125℃范围,防止容值偏差超限;
  3. 静电防护:陶瓷电容易受静电损伤,生产需接地、离子风扇等防护;
  4. 焊接工艺:回流焊峰值温度240℃~250℃,时间≤10秒,避免高温损坏介质;
  5. 精度调整:若需±5%精度,可选择同系列0603B681J500CT(J代表±5%)。

综上,华新科0603B681K500CT是一款性能均衡、性价比高的通用MLCC,适合大多数电子设备的信号处理与电源滤波场景,是工程师选型的可靠选择。

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