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FRL1206FR300TS是FOJAN(富捷)品牌推出的一款1206封装厚膜贴片电阻,针对对阻值精度、空间紧凑性及宽温适应性有需求的电路设计场景优化,核心参数聚焦低阻值、高精度与小功率,是消费电子、工业控制等领域的通用型元件。
该电阻属于厚膜贴片电阻范畴,采用陶瓷基片印刷电阻浆料+高温烧结工艺,兼具成本优势与性能稳定性;封装规格为1206(英制标识,对应公制3216,尺寸3.2mm×1.6mm),适配表面贴装技术(SMT)生产线,支持批量自动化生产;品牌为FOJAN(富捷),作为专业电子元器件制造商,产品覆盖从通用到定制化电阻的全系列,FRL1206FR300TS定位为中高精度低阻通用贴片电阻,满足多数电路对阻值精度(±1%)、功率(250mW)的常规需求。
核心阻值为300mΩ(毫欧),属于低阻值范畴;精度等级为**±1%**,即实际阻值范围在297mΩ~303mΩ之间,该精度可满足电流采样、电压分压等对阻值一致性要求较高的场景,无需额外校准即可实现基础功能。
额定功率为250mW,实际使用需遵循降额原则(如环境温度高于25℃时需降低功率使用),保证长期可靠性;工作电压参数为500V,可覆盖多数低压至中压电路的电压范围,避免过压击穿风险。
温度系数(TCR)为**±300ppm/℃,即温度每变化1℃,阻值变化率为±0.0003%;结合工作温度范围-55℃~+155℃**,在全温区范围内,阻值最大变化量约为±0.0189mΩ,对多数电路性能影响可忽略,保证宽温环境下的稳定性。
1206封装是贴片电阻的主流规格之一,尺寸小巧(典型值3.2mm×1.6mm×0.5mm),可有效节省PCB空间,适合便携式设备、小型模块等对空间敏感的设计;引脚采用银/镍/锡三层端电极,可焊性良好,适配回流焊、波峰焊等工艺,焊接可靠性高。
采用厚膜工艺:以氧化铝陶瓷基片为载体,印刷钌系电阻浆料,经高温烧结形成电阻层,再覆盖玻璃釉保护层;该工艺优势在于:① 电阻层与基片结合牢固,抗振动、抗冲击性能佳;② 玻璃釉保护层隔绝环境湿度、灰尘,提升长期稳定性;③ 成本低于薄膜电阻,适合批量应用。
工作温度范围覆盖**-55℃~+155℃**,可满足工业级设备(如户外控制器、车载辅助系统)的极端温度需求,避免低温下阻值漂移、高温下功率衰减等问题。
出厂前经过阻值分选(保证精度一致性)、功率老化测试(筛选早期失效品)、温度循环测试(验证宽温可靠性);据FOJAN官方数据,额定条件下使用,阻值漂移率通常小于0.5%/1000小时,满足多数产品生命周期要求。
300mΩ低阻值适合小电流采样(如电池管理系统BMS中单体电池充放电电流检测,采样电压=电流×300mΩ,便于ADC采集);±1%精度保证采样误差可控,避免电流误判。
在高精度分压场景(如电源输出电压监测、传感器信号调理),可与其他阻值电阻配合实现准确分压比,满足模拟电路精度要求。
250mW额定功率可满足小功率电路限流需求(如LED驱动辅助限流、低压电源过流保护前端采样),避免元件过流损坏。
1206封装小巧,适合智能手机、平板电脑等便携式设备PCB布局,可用于信号调节、滤波网络等基础电路。
FOJAN(富捷)产品符合RoHS 2.0、REACH等环保标准,无铅无镉;FRL1206FR300TS出厂全参数测试,每批次提供合格证明,支持卷带编带、托盘等定制化包装;针对工业客户,可提供振动、湿热等额外可靠性验证报告,保障批量应用一致性。
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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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