WMSIC Electronic Components

KEMET T491D476K020AT

ModelT491D476K020AT
PackageCASE-D-7343
BrandKEMET
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+

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Technical data

Product details

19 specifications

Core information

Product name
KEMET T491D476K020AT
Type
KEMET
Minimum package
500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
KEMET
Electronic Component
T491D476K020AT
Electronic Component
1
Electronic Component
47uF
Package
CASE-D-7343
Electronic Component
Capacitor
Electronic Component
±10%
Electronic Component
0.418g
Electronic Component
1
Electronic Component
BM0265790634
Operating Temperature
55℃~+125℃
Voltage
20V
Electronic Component
Electronic Component
Electronic Component
500
Resistor(ESR)
700mΩ@100kHz

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

T491D476K020AT 钽电容器产品概述

一、产品核心定位与品牌基础

T491D476K020AT是KEMET(基美) 推出的模制表面贴装钽电容器,属于T491D标准系列,专为低至中压、高密度电路设计。KEMET作为全球被动元件领域的头部厂商,其钽电容以高可靠性、宽温适应性和稳定性能著称,广泛应用于汽车、工业、消费电子等领域。该型号通过型号编码清晰传递核心参数:“476K”对应47μF±10%容值,“020A”对应20V额定电压,“T”标识封装与性能等级,符合工业级电路设计需求。

二、关键电气参数详解

该型号的电气性能参数经过严格标定,满足多数应用场景的核心需求:

  1. 容值与精度:标称容值47μF(型号中“476”为容值代码,即47×10⁶ pF),精度±10%(“K”级),偏差范围稳定,可满足滤波、去耦等电路对容值一致性的要求;
  2. 额定电压:20V DC,适用于5V~12V电源系统的二次滤波,避免过压击穿风险,同时兼顾体积与耐压的平衡;
  3. 等效串联电阻(ESR):700mΩ@100kHz,该值在同规格钽电容中表现中等偏优,可有效降低高频损耗,提升滤波效率;
  4. 漏电流特性:在额定电压下,漏电流典型值≤0.01CV(C为容值,V为电压),远低于铝电解电容,适合电池供电设备(如便携式电子)对静态电流的控制需求。

三、封装与物理特性

该型号采用CASE-D-7343封装,适配表面贴装(SMT)工艺,物理特性如下:

  1. 尺寸规格:公制对应2917(长度2.9mm×宽度1.7mm),英制7343(73mil×43mil),高度约1.2mm,属于小型化封装,可有效节省PCB空间,适合高密度设计;
  2. 封装类型:模制(Molded)结构,相比轴向/径向插件,密封性能更好,抗机械应力能力强,且兼容自动贴装设备,提升生产效率;
  3. 重量:单颗重量约0.1g,轻量化设计不增加终端产品的体积与重量负担。

四、性能优势与典型应用场景

T491D476K020AT的性能优势集中在宽温适应性、高可靠性与小型化三个维度:

  1. 宽温稳定运行:工作温度范围-55℃~+125℃,覆盖汽车发动机舱、工业高温环境等极端场景,性能衰减极小;
  2. 高可靠性:模制封装抗湿度(95%RH环境下长期稳定)、抗振动(符合AEC-Q200汽车级振动标准,10G~20G)、抗冲击(1000G),适合长期运行的设备;
  3. 适用场景:
    • 汽车电子:车载信息娱乐系统、动力控制模块的电源滤波;
    • 工业控制:PLC、传感器模块的去耦电路;
    • 消费电子:智能手机、平板电脑的音频电路、电源管理单元;
    • 医疗设备:小型便携式医疗仪器(如血糖仪)的稳压滤波。

五、环境与合规性

该型号符合RoHS 2.0(无铅、无镉等有害物质)、REACH等环保标准,封装采用无铅焊端,兼容当前电子制造的环保要求;同时,部分批次通过AEC-Q200认证,可满足汽车级应用的可靠性要求。

综上,T491D476K020AT凭借稳定的电气性能、宽温适应性与小型化设计,成为工业、汽车及消费电子领域电源滤波、去耦电路的可靠选择。

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