WMSIC Electronic Components

Viking AR05FTDW0100

ModelAR05FTDW0100
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 AR05FTDW0100
Type
VIKING
Minimum package
5000 圆盘

Technical parameters

Power
125mW
Electronic Component
Electronic Component
Electronic Component
VIKING
Electronic Component
AR05FTDW0100
Electronic Component
1
Package
0805
Electronic Component
SMD Resistor
Electronic Component
±1%
Electronic Component
0.029g
Electronic Component
10Ω
Electronic Component
1
Electronic Component
BM0264961699
Operating Temperature
55℃~+155℃
Operating Voltage
150V
Electronic Component
±50ppm/℃
Resistor Type
Resistor

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

AR05FTDW0100 产品概述

一、概览

AR05FTDW0100 是 Viking(光颉)品牌的一款贴片薄膜电阻,封装为 0805(公制约 2.0 × 1.25 mm),阻值 10 Ω,公差 ±1%,额定功率 125 mW,额定工作电压 150 V,温度系数(TCR)±50 ppm/℃,工作温度范围 -55 ℃ 至 +155 ℃。该器件以薄膜工艺制造,适用于需要稳定性、低噪声和中等精度的表面贴装电路(SMT)中。

二、主要性能要点

  • 阻值:10 Ω,公差 ±1%(适合对精度有一定要求的应用)。
  • 功率:额定耗散 125 mW(在特定散热条件下);需按实际 PCB 热阻和环境温度考虑降额使用。
  • 额定工作电压:150 V(器件耐压/绝缘相关指标),但在功率限值下的连续压降由 P = V^2 / R 决定(详见下文)。
  • 温度系数(TCR):±50 ppm/℃,温漂小,适合精密电阻网络或参考电路。
  • 工作温度范围:-55 ℃ 到 +155 ℃,满足工业级温度需求。
  • 封装:0805(便于自动化贴装、波峰或回流焊工艺兼容)。
  • 制程:薄膜电阻,具有优良的长期稳定性、低噪声与更小的温漂相对厚膜产品。

三、电气与热设计注意事项

  • 电压与功率的关系:尽管器件标称“工作电压 150 V”,这是 器件允许的最大静态工作电压(与绝缘与击穿相关),但在考虑功率耗散时,须遵循 P = V^2 / R。以 10 Ω、125 mW 为例,器件在额定功耗下对应的最大持续压降约为: Vmax = sqrt(P × R) = sqrt(0.125 W × 10 Ω) ≈ 1.12 V。 因此在持续功耗受限的场景中,即便器件能承受高压,也不能在电阻上连续承受超过约 1.12 V 的压降而不超出功率限制。高压应用需采用高阻值或分压/分散功耗的方案。
  • 散热与降额:贴片电阻的实际耗散能力强烈依赖 PCB 设计(焊盘尺寸、铜箔厚度和周围热散路径)。建议在高环境温度或受限散热条件下参照厂方降额曲线进行设计,或留出充分的安全裕度。
  • 温漂影响举例:TCR ±50 ppm/℃ 意味着每摄氏度变化电阻相对变化约 0.005%。例如从 25 ℃ 升至 85 ℃(温差 60 ℃)时,阻值变化约 60 × 50 ppm = 3000 ppm = 0.3%,10 Ω 变化约 0.03 Ω。

四、典型应用场景

  • 精密分压器、参考电阻与偏置网络:薄膜电阻的低噪声与较小温漂使其适合要求稳态精度的信号链。
  • 仪器仪表与测量前端:例如阻抗匹配、滤波网络中的精确阻值元件。
  • 通信/音频电路:要求低噪声和良好长期稳定性的场合。
  • 一般电子设备的低功率负载、限流或阻尼元件。
    注:不建议将此型号用于需要耗散远大于 125 mW 的功率负载或需要承受高功率瞬态的大电流检测场合。

五、封装与装配建议

  • 封装 0805 适用于高速贴装与常规回流焊工艺。标准 0805 的外形尺寸约为 2.0 × 1.25 mm(请以厂家数据为准)。
  • 焊接:建议遵循 Viking 的回流焊曲线与翻新/二次焊接限制,避免超过厂方推荐的最高焊接温度和时间。若无厂方曲线,则按通用 SMD 元件回流规范操作,并在产线上控制加热梯度以减少热机械应力。
  • 存储与搬运:避免强烈机械应力、潮湿环境与过度振动;若长期存放建议防潮包装并回温后再焊接。

六、可靠性与测试

薄膜电阻通常需通过以下项目的验证:阻值与公差测试、TCR 测量、功率负荷寿命(load life)、热冲击、湿热(HAST/湿热循环)与焊接可焊性测试。实际应用中建议向供应商索取完整的数据手册与可靠性报告,以便满足特殊行业(如汽车、医疗或航空)对寿命与环境的要求。

七、订购信息与备注

型号:AR05FTDW0100
品牌:Viking(光颉)
封装:0805,阻值 10 Ω,公差 ±1%,功率 125 mW,TCR ±50 ppm/℃,工作温度 -55 ℃ 至 +155 ℃。
在设计中使用前,建议核对厂方最新数据手册,获取完整的电气特性、降额曲线、焊接说明和包装信息,以确保在目标应用中的可靠性与性能。

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