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KTR03EZPF2701是日本罗姆(ROHM)推出的0603封装厚膜贴片电阻,属于罗姆电阻产品线中的常规精度系列。型号中各标识对应明确:
该产品定位为中小功率通用型电阻,兼顾体积、成本与性能,适配多数电子设备的基础电阻需求。
标称阻值为2.7kΩ,精度等级±1%——即实际阻值与标称值的偏差范围为±27Ω(2.7kΩ×1%)。此精度属于电子领域“常规精度”范畴,可满足信号调理、分压、限流等电路的基本稳定性需求,无需额外校准即可实现功能。
需注意两者的协同约束:根据公式(P=V^2/R),当电压达350V时,功耗仅约45.4mW(远低于100mW),因此电压限制(350V)是更严格的应用边界,需避免电路中出现超压信号(如瞬态尖峰)。
温度系数(TCR)为**±100ppm/℃**,表示环境温度每变化1℃,阻值相对变化百万分之一百。以工作温区(-55℃~+155℃)为例:
从常温(25℃)到最高温(155℃)温差130℃,阻值最大变化约±35.1Ω(2.7kΩ×100ppm/℃×130℃),可满足一般宽温场景需求(若需精密温漂控制,需选低TCR产品)。
采用超小型贴片封装,体积仅1.6mm×0.8mm×0.45mm左右,适配高密度PCB布局——尤其在便携电子(如智能手机、可穿戴设备)中,能有效节省空间、提升集成度;同时兼容自动化贴装设备,适合大规模批量生产。
结合参数特性,该电阻主要覆盖以下场景:
工作温度覆盖**-55℃~+155℃**,适配极寒户外设备(-55℃)到高温工业控制柜(155℃),无需额外温度补偿,稳定性能贯穿全温区。
采用厚膜电阻工艺,相比薄膜电阻成本更低,且抗机械应力、抗潮湿性能更优;罗姆通过严格工艺控制(如浆料配比、烧结温度),确保同一批次产品阻值偏差、温漂波动极小,适合对批量一致性要求高的客户。
KTR03EZPF2701由罗姆(ROHM)生产,作为全球知名半导体厂商,其被动元件具备三大优势:
该产品以“小体积+常规精度+宽温适应性”为核心卖点,是电子设备中小功率电阻的高性价比选择。
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Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
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