WMSIC Electronic Components

Walsin 0805B473K500CT

Model0805B473K500CT
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

20 specifications

Core information

Product name
(Walsin) 0805B473K500CT
Type
WALSIN
Unit
Electronic Component
Minimum package
4000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
(WALSIN)
Electronic Component
0805B473K500CT
Electronic Component
1
Electronic Component
47nF
Package
0805
Electronic Component
SMD Capacitor(MLCC)
Electronic Component
±10%
Electronic Component
0.034g
Electronic Component
1
Electronic Component
BM0265428854
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.

0805B473K500CT 多层陶瓷电容器产品概述

一、产品核心定位与型号解析

0805B473K500CT是华新科(Walsin) 推出的0805封装多层陶瓷电容器(MLCC),属于中温稳定型被动元件,聚焦“中容量、中耐压、温漂可控”的常规电路需求。型号各部分可快速对应核心参数:

  • 0805:英制封装尺寸(0.08英寸×0.05英寸,公制对应2012:2.0mm×1.2mm);
  • 473:容值编码(47×10³ pF = 47nF = 0.047μF);
  • K:容值精度(±10%);
  • 500:额定直流电压(50V);
  • CT:华新科常规商业级产品后缀(代表基础规格,无特殊车规/军工要求)。

二、关键性能参数详解

该型号的核心性能围绕“稳定适配常规电路”设计,具体指标如下:

  1. 容值与精度:标称47nF(0.047μF),±10%精度,满足多数电源滤波、信号耦合的偏差要求,无需额外校准;
  2. 额定电压:直流50V,可稳定工作在≤50V的直流电路中;交流应用需参考降额(峰值电压不超过35V,即额定值的70%);
  3. 温度特性(X7R):温度范围-55℃~+125℃,容值变化率≤±15%——相比NP0(高精度但容量小)成本更低,相比Y5V(大容量但温漂大)稳定性更强;
  4. 损耗与绝缘:1kHz下损耗角正切(tanδ)≤2.5%(低损耗适合滤波),25℃、50V直流下绝缘电阻≥10⁹Ω(抗漏电性能可靠)。

三、封装规格与物理特性

采用0805贴片封装(公制2012),是电子设备中最常用的小型化封装之一,具体参数:

  • 尺寸:长2.0±0.2mm、宽1.2±0.2mm、厚0.8±0.1mm;
  • 引脚间距:1.27±0.1mm(适配标准0805焊盘);
  • 工艺适配:支持回流焊(260℃峰值温度,持续10秒内)、波峰焊(需确认引脚润湿效果);
  • 结构特点:陶瓷基体+金属电极叠层结构,机械强度高,抗弯折性能符合IPC行业标准。

四、典型应用场景

因“容量适中、耐压足够、温漂稳定”,该型号广泛用于以下场景:

  1. 消费电子电源滤波:手机、笔记本的电源模块滤除低频噪声,LED驱动电源的输出滤波;
  2. 信号耦合/去耦:路由器、蓝牙模块的信号耦合电路,MCU(单片机)周边的去耦电容(稳定电源引脚电压);
  3. 工业控制辅助电路:PLC、传感器模块的模拟信号稳定,避免电磁干扰影响精度;
  4. 家电控制板:洗衣机、空调的电源滤波,减少电路波动导致的误触发。

注意:不适合高频(>100MHz)电路(优先选NP0)或大容量(>1μF)需求(优先选Y5V或电解电容)。

五、品牌可靠性与合规性

华新科作为全球被动元件主流厂商,该型号可靠性符合行业要求:

  1. 可靠性测试:通过高温存储(125℃×1000小时)、温度循环(-55℃~+125℃×1000次)、耐焊接热等测试,失效率低于行业平均;
  2. 环保合规:符合RoHS 2.0(无铅、无镉等有害物质)、REACH SVHC要求,适配全球市场;
  3. 供应稳定性:产能充足,可满足中小批量生产需求,避免缺货风险。

六、选型与使用注意事项

  1. 参数匹配:需确认容值(47nF)、耐压(50V)、精度(±10%)、温度系数(X7R)与电路需求一致,禁止超压使用(建议实际电压≤额定值的80%);
  2. 焊盘适配:PCB焊盘需匹配0805尺寸(焊盘长1.41.6mm、宽0.81.0mm),避免过大导致虚焊或过小导致开裂;
  3. 存储要求:未开封产品存储在0~40℃、湿度≤60%环境,开封后建议3个月内用完;
  4. 焊接工艺:回流焊温度曲线需符合IPC-J-STD-020标准,避免局部过热导致电容开裂。

该型号是常规电子电路中“中容量、中耐压、稳定型”MLCC的高性价比选型,适配多数消费电子、工业控制场景的基础需求。

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