WMSIC Electronic Components

Viking AR05BTCW5003

ModelAR05BTCW5003
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 AR05BTCW5003
Type
VIKING
Minimum package
5000 圆盘

Technical parameters

Power
125mW
Electronic Component
Electronic Component
Electronic Component
VIKING
Electronic Component
AR05BTCW5003
Electronic Component
1
Package
0805
Electronic Component
SMD Resistor
Electronic Component
±0.1%
Electronic Component
0.029g
Electronic Component
500kΩ
Electronic Component
1
Electronic Component
BM0263676884
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.

Viking AR05BTCW5003 薄膜电阻产品概述

一、产品定位与核心特性

Viking(光颉)AR05BTCW5003是一款工业级精密表面贴装薄膜电阻,针对对阻值精度、温区稳定性要求严苛的场景设计,兼顾小体积集成与可靠性。其核心优势可总结为:

  • 高精度(±0.1%)与低温度系数(±25ppm/℃),确保电路性能一致性;
  • 宽工作温区(-55℃~+155℃),适配极端环境应用;
  • 0805小封装,支持高密度PCB布局;
  • 125mW额定功率,满足中低功率精密电路需求。

二、关键参数详解

1. 阻值与精度

标称阻值500kΩ,精度±0.1%(即实际阻值偏差≤500Ω),远优于普通碳膜电阻(±1%~±5%)。该精度可直接用于精密分压、参考电压生成等场景,无需额外校准。

2. 功率与电压限制

  • 额定功率125mW:实际应用需降额(建议≤87.5mW,即70%降额),延长寿命;
  • 最大工作电压150V:需注意“功率-电压互锁”(150V下最大电流300μA,对应功率45mW,远低于额定值),禁止同时达到功率与电压上限。

3. 温度系数(TCR)

±25ppm/℃,指每变化1℃,阻值漂移为500kΩ×25×10⁻⁶=12.5Ω。在环境温度变化40℃时,漂移仅500Ω(与精度阈值一致);即使在-55℃~+155℃极端温区,漂移约2.6kΩ,仍能保持电路基本稳定。

4. 工作温区

-55℃~+155℃,符合工业级温区标准,支持户外设备、汽车子系统(如发动机舱周边)等低温启动、高温持续工作场景。

三、封装与可靠性设计

1. 0805封装优势

英制尺寸0.08″×0.05″(公制2.0mm×1.2mm),体积小巧,适配便携式设备、小型化模块的高密度布局,同时降低电路重量与成本。

2. 薄膜工艺特性

采用镍铬合金薄膜沉积工艺,相比厚膜电阻:

  • 低噪声(典型值<0.1μV/√Hz),适合生物电信号、射频偏置等对信号纯度要求高的场景;
  • 长期稳定性(漂移<0.05%/1000小时),减少批量应用的一致性偏差。

3. 可靠性验证

通过温度循环(-55℃~+155℃,500次)、湿度老化(85℃/85%RH,1000小时)、耐电压(1.5×150V,1分钟)等测试,符合IEC 61000工业标准,确保恶劣环境下性能不衰减。

四、典型应用场景

  1. 精密测量仪器:数字万用表、示波器的分压电路、参考电阻,保证测量精度;
  2. 工业控制模块:PLC模拟量输入调理、传感器信号放大,适配车间/户外温度变化;
  3. 医疗电子设备:监护仪心率/血压信号处理,低噪声避免诊断失真;
  4. 通信设备:基站射频偏置、中频滤波匹配,小封装适配高密度设计;
  5. 汽车电子子系统:车载音频电路、传感器节点,宽温区支持汽车极端环境。

五、选型与应用注意事项

  1. 功率降额:长期工作功率≤87.5mW,短期脉冲功率不超过额定值1.5倍;
  2. 焊接规范:回流焊峰值≤260℃(时间≤10秒),手工焊≤350℃(时间≤3秒);
  3. 存储条件:未开封产品存储于-40℃~+85℃、湿度≤60%环境,开封后12个月内使用;
  4. 寄生参数:0805封装寄生电感≈1nH、电容≈0.1pF,适合1GHz以下中低频应用,高频场景需额外匹配。

AR05BTCW5003通过平衡精度、稳定性与体积,成为精密电子系统的高性价比选择,尤其适合对温区、可靠性要求严苛的工业与医疗场景。

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