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AR03BTCX49R9是Viking(光颉)品牌推出的一款0603封装薄膜贴片电阻,属于高精度小功率电阻系列。该产品以稳定的阻值性能、宽温适应性为核心特点,主要面向对阻值精度、温度稳定性有较高要求的电子电路设计场景,兼顾小体积贴装的便捷性,是工业控制、医疗仪器、通信设备等领域的优选元件。
产品标称阻值为49.9Ω,精度等级达**±0.1%**,属于高精度电阻范畴——相比常规±1%、±5%电阻,其阻值偏差更小,能满足精密电路中对信号传输、分压/分流的准确控制需求,避免因阻值偏差导致的电路性能波动(如传感器测量误差、电源输出不稳定)。
额定功率为100mW,工作电压上限为75V,可稳定适配小功率电子电路(如信号调理、低功耗控制回路)的功率需求;实际应用中建议遵循功率降额原则(通常不超过额定功率的80%),进一步提升长期可靠性,避免过功率老化导致阻值漂移。
温度系数(TCR)为**±25ppm/℃,意味着温度每变化1℃,阻值变化量仅为标称值的25×10^-6,温度稳定性优异;工作温度范围覆盖-55℃~+155℃**,可适应工业级环境(如低温户外设备、高温车载电子)的极端温度变化,无需额外散热或温度补偿设计,降低电路复杂度。
采用0603封装(英制尺寸:0.06英寸×0.03英寸,公制尺寸:1.6mm×0.8mm),属于小型贴片封装,具有以下优势:
AR03BTCX49R9的性能特点使其适配多种精密电子领域:
Viking(光颉)作为专业电子元器件制造商,在电阻领域拥有成熟的薄膜电阻工艺:
该产品凭借高精度、宽温稳定、小体积等优势,可有效解决精密电路中对电阻性能的严苛要求,是电子设计中可靠的元件选择。
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Product sourcing intelligence
WMSIC turns product data, package visuals, BOM context, and sourcing signals into practical RFQ notes for buyers.
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
BOM lines are compared by package, parameters, quantity, and workable alternatives for cleaner sourcing decisions.
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The request connects the previously used model, current demand, package evidence, target timing, and replenishment sourcing route.
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