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SDNT1005X104F3950FTF是顺络电子(Sunlord)推出的0402封装贴片NTC热敏电阻,型号各部分精准对应核心参数:
该产品定位于高精度、小型化温度检测与补偿场景,兼顾宽温度范围与可靠性,适配消费电子、汽车电子、工业控制等多领域需求。
核心参数直接决定应用适配性,关键项解析如下:
25℃标称阻值100kΩ,精度±1%——高于常规NTC的±5%/±2%精度,可显著降低温度计算(如Steinhart-Hart方程)误差,适合医疗设备校准、精密仪器温度补偿等对精度敏感的场景。
25℃/50℃下B值3950K,精度±1%——B值是NTC温度系数核心指标,3950K属于中高范围:既避免低B值(如3435K)灵敏度不足,也不会因高B值(如4050K+)导致阻值变化过剧,适配宽温稳定检测。
最大稳态功率100mW,25℃最大稳态电流100mA——满足小功率电路长期工作需求,避免过载漂移/损坏,适配电池、小型电源模块等低功耗场景。
采用0402贴片封装(公制1005尺寸),是贴片元件中体积较小的规格之一,适配高密度PCB布局(如智能手机主板、小型穿戴设备)。封装基于陶瓷基材料,耐温性、机械稳定性优异,可承受回流焊(260℃左右)等SMT工艺,满足批量生产要求。
顺络作为国内被动元件龙头,该产品通过严格可靠性测试(温度循环、湿度老化、振动冲击),在-40~125℃范围内长期稳定,阻值漂移率行业领先。耐湿性能符合IEC 60068-2-60标准,适合潮湿环境(户外设备、厨房家电)应用。
因高精度、小型化与宽温特性,广泛用于:
该产品以高性价比平衡了精度、尺寸与可靠性,是中小功率温度检测场景的优选方案。
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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.
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