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SDNT1608X333F4050FTF是顺络电子(Sunlord)推出的0603封装高精度NTC热敏电阻,属于小体积、宽温型温度传感元件,核心功能是通过阻值随温度的线性变化实现精准温度检测与补偿。该产品以33kΩ标称阻值、4050K(25℃/50℃)B值为核心参数,兼顾精度与可靠性,适配消费电子、汽车电子、工业控制等多领域的小型化温度监测需求,是高密度PCB设计中理想的温度传感解决方案。
NTC热敏电阻的性能核心由阻值、B值、功率等参数决定,SDNT1608X333F4050FTF的关键电气参数如下:
标称阻值为33kΩ(对应三位代码“333”,即33×10³Ω),阻值精度达**±1%**。该精度可满足多数场景下的温度计算需求——无需额外高精度校准即可实现0.5℃以内的温度定位(典型值),适合对温度精度要求较高的电池管理、CPU监控等场景。
B值(温度系数参数)为4050K(25℃/50℃),精度±1%。B值反映了热敏电阻阻值随温度变化的速率:B值越高,阻值对温度变化越敏感。该产品的4050K B值可使0℃~100℃范围内的阻值变化率提升约15%(对比3950K B值产品),进一步优化了温度分辨率。
额定功率为100mW,25℃环境下最大稳态电流为170μA(通过公式(I_{max}=\sqrt{P/R})计算:(\sqrt{0.1W/33000Ω}≈170μA))。该参数严格限制了元件自热效应(自热会导致温度检测偏差),确保产品在正常工作时仅产生约0.1℃的自热误差(典型值),同时避免元件过热损坏。
覆盖**-40℃~+125℃**的宽温区间,满足低温环境(如北方户外设备、高原场景)和高温环境(如汽车发动机舱、工业电源模块)的温度检测需求,无需额外降温或保温措施即可稳定工作。
SDNT1608X333F4050FTF采用0603贴片封装(英制尺寸),物理尺寸为:
该封装具有三大核心优势:
结合参数特性,该产品的典型应用场景覆盖三大领域:
顺络电子作为国内被动元件龙头企业,SDNT1608X333F4050FTF具备完善的可靠性设计:
SDNT1608X333F4050FTF是一款高精度、小体积、宽温型NTC热敏电阻,以33kΩ±1%阻值、4050K±1% B值为核心优势,结合0603贴片封装的灵活性,可广泛应用于消费电子、汽车电子、工业控制等领域。顺络电子的品牌保障与完善的可靠性设计,使其成为温度传感场景下的高性价比选择,尤其适合对空间、精度、稳定性有严格要求的小型化设备。
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