WMSIC Electronic Components

Viking ARG02FTC4991

ModelARG02FTC4991
Package0402
BrandVIKING
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

19 specifications

Core information

Product name
Viking ARG02FTC4991
Type
VIKING
Minimum package
10000 圆盘

Technical parameters

Power
62.5mW
Electronic Component
Electronic Component
Electronic Component
VIKING
Electronic Component
ARG02FTC4991
Electronic Component
1
Package
0402
Electronic Component
SMD Resistor
Electronic Component
±1%
Electronic Component
0.009g
Electronic Component
4.99kΩ
Electronic Component
1
Electronic Component
BM0265636694
Operating Temperature
55℃~+155℃
Operating Voltage
50V
Electronic Component
±25ppm/℃
Resistor Type
Resistor

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

Viking光颉ARG02FTC4991薄膜贴片电阻产品概述

Viking(光颉)ARG02FTC4991是一款专为高密度、高精度电路设计的薄膜贴片电阻,采用0402(英制)/1005(公制)小封装,具备宽温稳定性、低温度系数等核心特性,可满足消费电子、工业控制、可穿戴设备等多领域的应用需求。

一、产品核心身份与定位

ARG02FTC4991属于光颉电阻系列中的薄膜贴片电阻,型号命名逻辑清晰:

  • "ARG02"对应0402封装规格;
  • "FTC"明确为薄膜电阻类型;
  • "4991"表示阻值参数:前三位"499"为有效数字,第四位"1"代表×10¹,即4.99kΩ;
  • 精度等级为±1%,功率额定值62.5mW。

该产品定位为小功率高精度宽温薄膜电阻,兼顾体积紧凑与性能稳定,是高密度PCB设计的优选器件。

二、关键性能参数深度解析

1. 阻值与精度

阻值为4.99kΩ,属于E96精密电阻系列(±1%精度常用系列),满足大多数电路对阻值误差的控制要求——无需额外校准即可实现稳定的信号调理、分压、限流等功能,适配对精度敏感的模拟电路场景。

2. 功率与电压额定值

  • 额定功率:62.5mW(0.0625W),是0402封装薄膜电阻的典型功率等级,可支撑低功耗电路的长期稳定运行;
  • 工作电压:标称50V(需注意:实际工作电压需结合功率限制计算,最大安全电压为√(P×R)=√(0.0625×4990)≈17.66V,50V为过压测试极限值,不建议长期工作在此电压下)。

3. 温度特性

  • 温度系数(TC):±25ppm/℃,远优于碳膜电阻(通常±200ppm/℃以上),温度变化时阻值漂移极小,可有效避免环境温度波动对电路性能的影响;
  • 工作温度范围:-55℃+155℃,覆盖工业级(-40+85℃)与部分汽车级(-55~+125℃)环境,可适应极端温度场景(如户外工业设备、车载低温启动场景)。

三、封装与物理特性

采用0402封装(英制尺寸:0.04英寸×0.02英寸,公制:1.0mm×0.5mm),具备以下核心优势:

  • 体积紧凑:大幅缩小PCB占用面积,适合智能手机、可穿戴设备等小型化产品的高密度布局;
  • 贴片式设计:支持自动化贴装(SMT),提高生产效率,降低人工成本,适配主流电子制造产线;
  • 焊盘兼容性:符合国际标准0402封装焊盘设计,无需额外修改PCB即可直接应用。

四、典型应用场景

ARG02FTC4991的参数特性使其适配多领域应用:

  1. 消费电子:智能手机、平板的电源反馈网络、信号滤波电路(小封装+高精度);
  2. 可穿戴设备:智能手环、手表的传感器信号调理(宽温+小体积,适应人体佩戴环境温度变化);
  3. 工业控制:小型PLC的I/O模块、温度传感器前端电路(-55~+155℃宽温,满足工业现场极端温度);
  4. 通信设备:小型基站、路由器的射频匹配网络(低TC+高精度,确保射频信号稳定);
  5. 汽车电子:车载辅助驾驶的传感器电路(部分汽车级温度需求,适配车载环境)。

五、产品优势总结

  1. 高精度稳定:±1%阻值精度+±25ppm/℃温度系数,确保电路性能一致性,减少后期调试成本;
  2. 宽温可靠性:-55~+155℃工作范围,适应严苛环境,延长产品使用寿命;
  3. 高密度集成:0402小封装,支持PCB高密度布局,缩小产品体积;
  4. 品牌可靠性:Viking光颉为专业电阻制造商,产品一致性好,长期可靠性经市场验证;
  5. 成本效益:在高精度宽温场景下,比同性能陶瓷电阻更具成本优势,提升产品性价比。

六、使用注意事项

  1. 功率降额:实际功耗需≤62.5mW,高温环境(>125℃)需按10%/10℃降额,避免过功率损坏;
  2. 电压限制:长期工作电压不得超过17.66V,避免过压导致电阻击穿;
  3. 贴装质量:0402封装需使用高精度贴装设备,确保焊盘对齐与焊接温度(230~250℃),避免虚焊;
  4. 存储条件:存储温度-40~+85℃,湿度≤60%,避免氧化影响焊接性能。

综上,Viking光颉ARG02FTC4991薄膜贴片电阻凭借高精度、宽温稳定、小封装等特性,成为多领域电路设计的实用选择,可有效提升产品性能与集成度。

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