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FRL1206FR500TS是国内品牌FOJAN(富捷)推出的一款1206封装厚膜贴片电阻,针对中低功率场景下的电流检测、分压及信号调理需求设计,具备低阻值、高精度、小体积、宽温适应性等核心优势,可满足工业控制、汽车电子、消费电子等多领域的应用要求。
该电阻属于厚膜贴片电阻范畴,核心定位为中小功率场景下的低成本高精度电流采样元件,关键特性可总结为:
标称阻值500mΩ,精度±1%,即实际阻值范围为495mΩ~505mΩ。该精度水平可满足电流检测中对采样精度的基本要求,同时避免了高精度薄膜电阻的成本压力,适合批量应用。
温度系数为±300ppm/℃,即温度每变化1℃,阻值变化约0.03%。例如,从-55℃升至+155℃(温差210℃),阻值最大变化约0.63%,在厚膜电阻中属于常规稳定水平,可满足工业级环境下的长期使用需求。
-55℃+155℃,覆盖了汽车电子(-40℃+125℃)、工业控制(-20℃~+85℃)等主流场景的温度要求,部分户外设备(如基站)也可适配。
1206封装是贴片电阻的主流小封装之一,尺寸为3.2mm(长)×1.6mm(宽)×0.5mm(厚),具有以下优势:
采用丝网印刷+高温烧结厚膜工艺,电阻膜层均匀附着于陶瓷基底,具备:
结合参数特性,FRL1206FR500TS主要应用于以下场景:
在开关电源、DC-DC转换器中,作为电流采样电阻:低阻值(500mΩ)可在大电流(如1A)下产生0.5V的采样电压,便于MCU/ADC检测,同时小功率(250mW)满足小功率电源的功耗要求。
用于笔记本、电动车(小功率模块)的BMS中,检测电池充放电电流:低阻值减少自身功耗(如1A电流下功耗仅0.5mW),不影响电池续航,宽温范围适配车载环境。
在PLC、变频器的信号调理电路中,作为分压电阻或电流采样电阻:±1%精度保证信号采集的一致性,宽温范围满足工业现场的极端温度变化。
车载中控、传感器模块的过流保护电路中,作为限流电阻:500V工作电压适配车载12V/24V系统,宽温范围(-40℃~+125℃)满足汽车级要求。
FOJAN(富捷)作为专业电阻厂商,FRL1206FR500TS通过多项可靠性测试:
此外,该产品批量供货稳定,单批次一致性好,适合OEM/ODM客户的大规模生产需求。
FRL1206FR500TS是一款性价比突出的厚膜贴片电阻,以低阻值、高精度、小封装为核心优势,覆盖工业控制、汽车电子、消费电子等多领域应用。其宽温适应性与厚膜工艺的稳定性,可满足大多数中小功率场景的长期使用需求,是批量应用的理想选择。
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