WMSIC Electronic Components

Viking AR05BTCW4992

ModelAR05BTCW4992
Package0805
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 AR05BTCW4992
Type
VIKING
Minimum package
5000 圆盘

Technical parameters

Power
125mW
Electronic Component
Electronic Component
Electronic Component
VIKING
Electronic Component
AR05BTCW4992
Electronic Component
1
Package
0805
Electronic Component
SMD Resistor
Electronic Component
±0.1%
Electronic Component
0.029g
Electronic Component
49.9kΩ
Electronic Component
1
Electronic Component
BM0265378697
Operating Temperature
55℃~+155℃
Operating Voltage
150V
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.

AR05BTCW4992 贴片薄膜电阻产品概述

一、产品定位与基本属性

AR05BTCW4992是光颉(Viking)推出的0805封装贴片薄膜电阻,属于高精度、宽温型系列产品,专为对阻值精度、温度稳定性要求严苛的工业级、汽车电子及精密仪器领域设计。其采用真空溅射金属膜工艺,兼具高精度与低温度系数特性,适配自动化表面贴装(SMT)生产线,可满足高密度PCB布局需求,是替代普通厚膜电阻的优选方案。

二、核心性能参数详细说明

(1)阻值与精度

  • 标称阻值:49.9kΩ(对应E96系列编码“4992”,符合高精度电阻的阻值规范);
  • 精度等级:±0.1%(属于工业级高精度级别,远高于普通碳膜电阻±5%的精度,可确保电路信号调理、分压等功能的一致性,避免因阻值偏差导致的测量或控制误差)。

(2)功率与电压

  • 额定功率:125mW(0805封装下的常规功率等级,适配低功耗电路设计,如传感器信号放大、微控制器外围电路);
  • 最大工作电压:150V(连续工作电压上限,需结合功率降额使用,避免电压击穿或功率过载)。

(3)温度特性与工作范围

  • 温度系数(TCR):±25ppm/℃(表示环境温度每变化1℃,阻值变化量为原阻值的25×10⁻⁶,稳定性优于普通厚膜电阻的±100ppm/℃以上,可适应温度波动较大的场景);
  • 工作温度范围:-55℃至+155℃(覆盖工业级、汽车级温度需求,可在极端低温(如北方户外设备)或高温(如发动机舱附近电路)环境下稳定工作,无需额外散热设计)。

三、封装与尺寸规格

AR05BTCW4992采用0805贴片封装,公制尺寸为2.0mm(长)×1.2mm(宽)×0.5mm(厚),符合国际IPC标准;封装采用无铅锡膏工艺,兼容RoHS、REACH等环保指令,适合绿色电子产品设计;同时,其小型化封装可有效节省PCB空间,提升电路集成度,适配高密度电路板布局。

四、典型应用场景

结合产品的高精度、宽温特性,AR05BTCW4992主要应用于以下领域:

  1. 工业控制设备:PLC(可编程逻辑控制器)输入输出模块、传感器信号调理电路(如压力、温度传感器的放大与校准);
  2. 汽车电子系统:车载ADAS(高级驾驶辅助系统)传感器(如毫米波雷达、摄像头)的信号处理电路、发动机控制单元(ECU)外围电路;
  3. 精密测试仪器:示波器、万用表、信号发生器等设备的校准电路、分压网络;
  4. 通信设备:基站射频前端滤波电路、光纤收发器的偏置电路;
  5. 医疗电子:监护仪、输液泵等设备的信号检测电路(需高精度、稳定性能以确保医疗数据准确)。

五、品牌与可靠性保障

光颉(Viking)作为专业电子元器件制造商,在电阻领域拥有成熟的生产工艺:

  • 薄膜电阻采用真空溅射金属膜技术,阻值一致性好,耐老化性能优于普通厚膜电阻;
  • 产品经过严格的可靠性测试:高温老化(155℃×1000小时)、温度循环(-55℃~155℃×500次)、湿度测试(85℃/85%RH×1000小时)等,确保长期工作稳定性;
  • 符合ISO 9001质量管理体系,产品一致性达标率≥99.9%,可满足批量生产的一致性要求。

六、使用注意事项

为确保产品性能与寿命,使用时需注意:

  1. 功率降额:实际工作功率建议不超过额定功率的80%(即≤100mW),避免过热导致阻值漂移;
  2. 电压限制:连续工作电压需结合功率降额计算(如100mW下,最大电压≈√(P×R)=√(100mW×49.9kΩ)≈70.6V),不可直接使用150V上限;
  3. 焊接工艺:回流焊峰值温度控制在260℃以内(持续时间≤10秒),波峰焊温度≤245℃,避免损伤薄膜层;
  4. 储存条件:未开封产品存放在温度-10℃40℃、湿度30%70%RH的环境,开封后建议12个月内使用完毕。

AR05BTCW4992凭借高精度、宽温稳定、小型化等特性,可有效提升电路性能,是工业、汽车、仪器仪表等领域的可靠选择。

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