WMSIC Electronic Components

Viking ARG02DTC4990

ModelARG02DTC4990
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 ARG02DTC4990
Type
VIKING
Minimum package
10000 圆盘

Technical parameters

Power
62.5mW
Electronic Component
Electronic Component
Electronic Component
VIKING
Electronic Component
ARG02DTC4990
Electronic Component
1
Package
0402
Electronic Component
SMD Resistor
Electronic Component
±0.5%
Electronic Component
0.009g
Electronic Component
499Ω
Electronic Component
1
Electronic Component
BM0265649554
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ARG02DTC4990薄膜贴片电阻产品概述

一、产品定位与核心身份

Viking(光颉)ARG02DTC4990是一款针对精密小信号电路设计的薄膜贴片电阻,属于ARG02DTC系列0402封装产品。该电阻聚焦「高密度PCB集成、宽温稳定、高精度信号调理」三大核心需求,广泛适配消费电子、工业控制、通信设备等领域的小型化模块,是替代传统插件电阻或低精度贴片电阻的优选方案。

二、关键性能参数及实际意义

ARG02DTC4990的参数围绕「精密、稳定、小功率」三大方向设计,具体解析如下:

  1. 阻值与精度:额定阻值499Ω,精度±0.5%——满足精密分压、限流场景的误差要求(如ADC基准电压分压、传感器信号放大反馈网络),无需额外校准即可实现稳定输出;
  2. 功率与耐压:额定功率62.5mW,工作电压50V——适配小信号电路(微控制器I/O限流、射频前端偏置),避免功率冗余导致的体积浪费;
  3. 温度系数:±25ppm/℃——薄膜电阻核心优势,每升高1℃阻值变化不超过499Ω×25×10⁻⁶≈0.0125Ω,宽温下阻值漂移可忽略,适合工业极端环境;
  4. 工作温度范围:-55℃+155℃——覆盖工业级(-40℃+85℃)、汽车级(-40℃~+125℃)部分场景,满足户外设备、车载小模块需求。

三、封装工艺与物理特性

  1. 封装规格:0402封装(公制1.0mm×0.5mm×0.35mm)——体积仅为1/8W插件电阻的1/20,适配智能手机、智能手表等高密度PCB设计,大幅提升集成度;
  2. 薄膜工艺:镍铬合金薄膜技术——相比碳膜(精度±5%、温度系数±200ppm/℃)、普通金属膜(精度±1%、温度系数±50ppm/℃),精度更高、温度稳定性更强,且噪声低(典型值<0.1μV/√Hz),适合微弱信号处理;
  3. 可靠性设计:陶瓷基板+环氧树脂封装——耐机械冲击(符合IPC-9701标准)、耐潮湿(湿度5%~95%),可通过260℃回流焊(10秒内),焊接兼容性强。

四、典型应用场景匹配

ARG02DTC4990的参数与以下场景高度适配:

  1. 消费电子:智能手机传感器接口(加速度计、陀螺仪信号调理)、音频模块滤波网络——体积小、精度高,满足便携设备集成需求;
  2. 工业控制:小型PLC模拟量输入模块、温度传感器信号放大电路——宽温范围、稳定温度系数,确保工业现场长期可靠;
  3. 通信设备:基站射频前端偏置电路、路由器电源监控模块——小功率、低噪声,适配高频小信号应用;
  4. 汽车电子(辅助):车载TPMS信号处理、USB充电限流电路——宽温、抗振动,满足车载环境基本要求。

五、使用与选型注意事项

为确保性能稳定与长寿命,需注意:

  1. 功率降额:实际功率不超过额定值的50%(31.25mW),避免长期满功率运行导致阻值漂移;
  2. 焊接规范:回流焊峰值温度245±5℃(10秒内),波峰焊温度≤260℃(5秒内),避免高温损坏薄膜层;
  3. 储存条件:未焊接电阻储存在常温(15℃~35℃)、干燥(湿度<60%)环境,避免受潮;
  4. 电路匹配:搭配同精度运放(如OPA2333)、ADC(如ADS1115),避免其他元器件误差掩盖精度优势。

ARG02DTC4990凭借「小体积、高精度、宽温稳定」的特性,成为精密小信号电路的高性价比选择,可有效提升终端产品的集成度与可靠性。

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