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RK73H1JTTD4022F是日本KOA公司推出的0603封装通用厚膜电阻,针对小型化、高密度电路设计优化,兼具高精度、宽温适应性与稳定性能,适用于消费电子、工业控制等多领域。以下从核心特性、参数、应用等维度详细说明:
该电阻定位于小功率厚膜电阻,核心优势围绕“小封装+高精度+宽温可靠”展开:
标准阻值为40.2kΩ,精度±1%(E96系列),实际阻值范围39.798kΩ~40.602kΩ,可满足模拟电路、信号调节等对偏差敏感的应用。
额定功率100mW(1/10W),是0603封装厚膜电阻的典型规格。结合阻值计算,最大持续电流约1.57mA(I=√(P/R)=√(0.1W/40200Ω)),适配小电流电路。
采用0603英寸(1608公制) 表面贴装封装,尺寸1.6mm×0.8mm×0.4mm,是小型化电路的主流选择,可显著降低PCB占用面积,适配智能手机、可穿戴设备等紧凑设计。
厚膜电阻通过丝网印刷、烧结制备,相比薄膜电阻成本更低,相比碳膜电阻稳定性更好;厚膜层附着力强,长期使用阻值漂移小。
覆盖**-55℃~+155℃**,可适应:
KOA对该系列进行高温存储、温度循环等测试,确保极端环境下阻值变化率≤1%(典型值),满足工业级寿命要求。
结合参数特性,核心应用包括:
实际功率建议不超过额定值的70%(≤70mW),避免长期过载导致失效;脉冲电路需额外计算峰值功率。
直流电压≤75V,交流电路需注意峰值(如220V交流峰值311V,禁止使用)。
适配回流焊(峰值≤260℃,持续≤10秒)、手工焊(≤350℃,持续≤3秒),避免高温损坏。
存储于25℃±10℃、湿度≤60%的干燥环境,搬运时防机械冲击与静电。
总结:RK73H1JTTD4022F是高性价比的0603厚膜电阻,以小体积、高精度、宽温可靠为核心优势,可广泛替代同类进口电阻,满足多领域小型化电路需求。
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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 request connects the previously used model, current demand, package evidence, target timing, and replenishment sourcing route.
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