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RTT024703FTH是台湾旺诠(RALEC)推出的0402封装厚膜贴片电阻,属于小型化精密电阻范畴。该型号以470kΩ为标称阻值,主打高性价比与稳定性能,广泛适配消费电子、工业控制等领域的高密度电路设计需求,是旺诠厚膜电阻产品线中的经典型号之一。
阻值与精度
标称阻值为470kΩ,精度等级达±1%,可满足多数精密信号调理、分压电路的误差要求,避免因阻值偏差导致的信号偏移或控制精度下降。对于对精度要求更高的场景,可结合实际电路需求做二次筛选,但常规应用无需额外处理。
功率与电压额定值
额定功率为62.5mW(即1/16W),最大工作电压50V。需注意电路中实际功率需满足P=I²R≤62.5mW,或V≤50V(取两者较小值)。例如,当工作电压为50V时,最大允许电流约为106μA,实际应用中建议留有余量(如降额至80%功率),以延长产品寿命。
温度特性与工作范围
温度系数(TCR)为±100ppm/℃,即在-55℃至+155℃的宽温范围内,每变化1℃,阻值变化约0.01%。该特性确保产品在极端温度环境下(如工业户外、车载高温区)仍能保持稳定性能,避免因温度波动导致的电路参数漂移。
环境适应性
工作温度范围覆盖-55℃~+155℃,符合工业级宽温要求;同时产品采用厚膜工艺,具备较好的抗冲击、抗振动性能,可应对量产中的SMT焊接应力及长期使用中的环境振动。
RTT024703FTH采用0402英制封装(对应公制1005,尺寸为长1.0mm×宽0.5mm×高0.35mm),是目前小型化电路中最常用的贴片封装之一。该封装的优势包括:
基于其小体积、宽温、稳定性能的特点,RTT024703FTH广泛应用于以下领域:
旺诠(RALEC)作为全球知名的被动元件制造商,其厚膜电阻产品线具备成熟的生产工艺与严格的质量管控:
该型号凭借小体积、宽温、稳定可靠的特性,成为众多小型化电路设计的优选电阻之一,可满足不同领域的基础精密电阻需求。
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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.
Stock routes, quotation confidence, lead-time notes, and shipment feasibility are checked before sales follow-up.
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The buyer shares the full part number, package requirement, quantity, destination, and available product photos so the quotation can record the exact version under review.
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The original manufacturer part number, datasheet revision, application, critical limits, and acceptable changes are collected before possible candidates are discussed.
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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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