WMSIC Electronic Components

VISHAY CRCW040247K5FKED

ModelCRCW040247K5FKED
Package0402
BrandVISHAY
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 24+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
VISHAY CRCW040247K5FKED
Type
VISHAY
Minimum package
10000 圆盘

Technical parameters

Power
62.5mW
Electronic Component
Electronic Component
Electronic Component
VISHAY
Electronic Component
CRCW040247K5FKED
Electronic Component
1
Package
0402
Electronic Component
SMD Resistor
Electronic Component
±1%
Electronic Component
0.012g
Electronic Component
47.5kΩ
Electronic Component
1
Electronic Component
BM0246759480
Operating Temperature
55℃~+155℃
Operating Voltage
50V
Electronic Component
±100ppm/℃
Resistor Type
Resistor

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

VISHAY CRCW040247K5FKED 厚膜贴片电阻产品概述

一、产品基本信息与品牌背景

VISHAY(威世)作为全球电子元器件领域的龙头企业,以高可靠性、精密制造和宽应用覆盖著称,其CRCW系列厚膜贴片电阻是工业级通用电阻的经典代表。CRCW040247K5FKED是该系列中一款小封装、低功耗的核心型号,型号命名遵循行业标准:

  • CRCW:代表厚膜贴片电阻系列;
  • 0402:英制封装尺寸(对应公制1005,即1.0mm×0.5mm);
  • 47K5:标称阻值47.5kΩ(“K”表示千欧,“5”为小数位);
  • FKED:后缀编码对应核心参数(精度±1%、温度系数±100ppm/℃等)。

该产品采用表面贴装技术(SMT),适配自动化生产流程,是高密度PCB设计的理想选择。

二、核心电气参数详解

CRCW040247K5FKED的参数经过平衡优化,满足多数通用场景的稳定需求:

1. 阻值与精度

标称阻值47.5kΩ,精度±1%——这是工业级电路的常用精度等级,无需额外校准即可用于信号调理、分压、限流等场景,保证电路性能一致性。

2. 功率额定值

62.5mW(约0.063W)——符合0402封装的典型功率等级,适用于低功耗信号电路(如传感器接口、小信号放大),避免大电流导致的过热问题。

3. 工作电压

最大连续工作电压50V——需严格控制电路电压不超过此值,防止电阻击穿或性能退化;脉冲电压需参考VISHAY官方脉冲功率曲线(若应用场景涉及脉冲信号)。

4. 温度系数(TCR)

±100ppm/℃——表示温度每变化1℃,阻值变化±47.5μΩ(47.5kΩ×100ppm)。在-55℃~+155℃的宽温范围内,阻值变化量可控,适合环境温度波动较大的应用(如工业现场、车载环境)。

5. 工作温度范围

-55℃至+155℃——覆盖工业级和部分汽车电子的温度要求,可在极端环境下稳定工作(如户外设备、高温车间)。

三、封装与物理特性

该产品采用0402厚膜贴片封装,具有以下特点:

  • 体积极小:尺寸约1.0mm×0.5mm×0.4mm(以官方数据为准),大幅节省PCB空间,适合便携设备(手机、智能手表)、小型模块等高密度设计;
  • 厚膜技术优势:通过丝网印刷电阻浆料并高温烧结而成,相比薄膜电阻成本更低,相比线绕电阻体积更小、抗脉冲能力更强;
  • 焊接兼容性:适配主流回流焊、波峰焊工艺,焊接后可靠性高,无虚焊风险(需遵循VISHAY官方焊接温度曲线)。

四、典型应用场景

CRCW040247K5FKED的参数特性使其适用于以下场景:

  1. 小信号放大电路:作为偏置电阻、反馈电阻,稳定放大电路的静态工作点;
  2. 通信设备:滤波网络、分压电路、阻抗匹配元件(如路由器、基站的信号处理模块);
  3. 工业控制模块:传感器信号调理、PLC输入输出接口的限流/分压;
  4. 便携电子设备:LED驱动电路、电池保护电路(利用小封装实现轻薄设计);
  5. 汽车电子:低功率信号电路(如仪表盘背光、传感器信号处理),宽温范围符合车载环境要求。

五、产品优势与市场定位

核心优势

  • 品质可靠:VISHAY的制造工艺确保产品一致性(批量应用故障率低),长期稳定性符合工业级标准;
  • 成本效益:厚膜技术与小封装结合,实现“性能-成本”平衡,适合中低端到中端电子设备的大规模应用;
  • 宽温适配:-55℃~+155℃的工作范围,拓展了工业、汽车等领域的应用场景;
  • 集成性强:0402封装适配主流SMT生产线,易集成于各类PCB设计。

市场定位

作为通用型厚膜贴片电阻,CRCW040247K5FKED是替代同类进口/国产电阻的高性价比选择,广泛应用于消费电子、工业控制、通信等领域。

六、选型与使用注意事项

  1. 功率降额:建议实际功率不超过额定值的80%(即50mW以内),延长产品寿命(热应力是电阻失效的主要原因);
  2. 电压限制:连续工作电压不得超过50V,脉冲电压需参考官方脉冲功率曲线;
  3. 温度稳定性:若应用场景对阻值精度要求极高(如精密测量仪器),需选择更高精度(±0.1%)或更低TCR(±50ppm/℃)的产品;
  4. 存储条件:常温干燥环境存储(湿度≤60%),未开封产品存储期不超过12个月;
  5. 焊接工艺:遵循VISHAY官方焊接温度曲线(回流焊峰值温度≤245℃,时间≤10s),避免过温损坏。

综上,CRCW040247K5FKED凭借VISHAY的品质保障、平衡的参数特性和小封装优势,成为工业级通用电阻的优选型号,适用于多数低功耗、高密度的电子设计场景。

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