WMSIC Electronic Components

Viking AR03BTCX4702

ModelAR03BTCX4702
Package0603
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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
Viking AR03BTCX4702
Type
VIKING
Minimum package
5000 圆盘

Technical parameters

Power
100mW
Electronic Component
Electronic Component
Electronic Component
VIKING
Electronic Component
AR03BTCX4702
Electronic Component
1
Package
0603
Electronic Component
SMD Resistor
Electronic Component
±0.1%
Electronic Component
0.023g
Electronic Component
47kΩ
Electronic Component
1
Electronic Component
BM0265966181
Operating Temperature
55℃~+155℃
Operating Voltage
75V
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.

AR03BTCX4702 薄膜贴片电阻产品概述

一、产品核心身份与定位

AR03BTCX4702是Viking(光颉) 旗下的0603封装精密薄膜贴片电阻,属于高稳定、低漂移的精密电阻系列。该型号针对对阻值精度、温度稳定性要求苛刻的电子设计场景,填补了普通碳膜/厚膜电阻与高端合金电阻之间的性能空白,兼顾“小体积”与“高可靠性”,适配现代电子设备的小型化、高密度设计需求。

二、关键电气性能参数

1. 阻值与精度

核心阻值为47kΩ(型号后缀“4702”对应“47×10²Ω”),精度达**±0.1%**——这一参数比普通碳膜电阻(±5%)高50倍以上,比工业级厚膜电阻(±1%)高10倍,可直接满足精密电路中“阻值一致性”要求(如校准电路、基准电压源)。

2. 功率与电压承载

额定功率100mW,最大工作电压75V,计算最大工作电流约1.59mA(I=V/R=75V÷47000Ω)。该功率/电压规格适配“小信号放大、微弱信号检测”等低功耗场景,避免了大功率电阻的体积冗余,同时满足高压小电流电路的安全需求。

3. 温度系数(TCR)

温度系数为**±25ppm/℃**,表示每变化1℃,阻值漂移仅±25×10⁻⁶(即每10℃变化0.025%)。在-55℃~155℃宽温范围内,阻值稳定性优异——例如,155℃时相对于25℃的漂移量仅约0.325%,远低于普通电阻的温度漂移(如碳膜电阻可达±1000ppm/℃),可减少温度变化对电路性能的影响。

三、物理封装与工艺特性

1. 0603封装规格

采用0603英制封装,对应公制尺寸为1.6mm×0.8mm,厚度约0.45mm。体积小巧的优势使其可用于高密度PCB设计(如便携智能设备、小型通信模块),每平方厘米PCB可容纳数百个该型号电阻,有效降低设备体积。

2. 薄膜工艺核心优势

区别于厚膜电阻的“印刷浆料工艺”,AR03BTCX4702采用真空溅射薄膜工艺:

  • 电阻层均匀性高,噪声低(典型值<0.1μV/√Hz),适合对噪声敏感的应用(如医疗监护设备、音频前置放大);
  • 长期稳定性好(老化系数通常<50ppm/1000小时),可减少设备长期使用中的阻值漂移,降低维护成本。

四、环境适应性与可靠性

1. 宽温工作范围

支持**-55℃+155℃** 工作温度,覆盖工业级、汽车级(部分场景)的温度需求——例如,可在户外通信基站(低温-40℃、高温60℃)、工业PLC(-20℃85℃)等环境下稳定工作,无需额外散热或温度补偿。

2. 可靠性与环保认证

该型号通过了Viking的常规可靠性测试(温度循环、湿度老化、耐焊接热),符合RoHS、REACH 环保标准,采用无铅封装(Sn-Cu合金),适配现代SMT制造工艺(回流焊、波峰焊),可避免焊接过程中的性能衰减。

五、典型应用场景

AR03BTCX4702的性能特性使其广泛应用于以下领域:

  1. 精密测量仪器:数字万用表、示波器的校准电路(需高稳定阻值保证测量精度);
  2. 医疗电子设备:监护仪的生理信号放大电路(低噪声减少信号干扰);
  3. 通信模块:射频前端匹配网络、基带电路偏置电阻(0603封装适配小型化模块);
  4. 工业控制电路:PLC模拟量输入输出电路(宽温范围满足工业现场);
  5. 高端音频设备:耳机放大器前置级(低噪声提升音质纯净度)。

六、品牌与品质背书

Viking(光颉)是全球知名的被动元件制造商,专注精密电阻、电感研发20余年,其薄膜电阻系列以“高一致性、高可靠性”著称,广泛应用于航空航天、医疗、通信等高端领域。AR03BTCX4702继承了品牌的工艺优势,批量生产中阻值一致性可达±0.05%(优于标称精度),可满足客户对“一致性”的苛刻要求。

综上,AR03BTCX4702是一款“小体积、高精度、宽温稳定”的精密薄膜电阻,适配多场景高端电子设计,是替代普通电阻提升电路性能的优选方案。

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