WMSIC Electronic Components

Sunlord SDNT1005X104F3950FTF

ModelSDNT1005X104F3950FTF
Package0402
BrandSUNLORD
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
Sunlord SDNT1005X104F3950FTF
Type
SUNLORD
Minimum package
10000 圆盘

Technical parameters

Power
100mW
Electronic Component
Electronic Component
Electronic Component
SUNLORD
Electronic Component
SDNT1005X104F3950FTF
Electronic Component
1
Electronic Component
0.5mm
Package
0402
Electronic Component
NTCThermistor Resistor
Electronic Component
0.019g
Electronic Component
1mm
Electronic Component
100kΩ
Electronic Component
0.5mm
Electronic Component
1
B
±1%
Electronic Component
BM0264913683
Operating Temperature
40℃~+125℃

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

Sunlord SDNT1005X104F3950FTF NTC热敏电阻产品概述

一、产品核心定位与型号解读

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:

  • 「1005」:公制封装尺寸(1.0mm×0.5mm×0.5mm,对应英制0402);
  • 「104」:25℃标称阻值100kΩ(10×10⁴Ω);
  • 「F」:阻值精度±1%;
  • 「3950」:25℃/50℃下的B值(3950K)。

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。

二、关键电气性能参数解析

核心参数直接决定应用适配性,关键项解析如下:

1. 阻值与精度

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。

2. B值特性

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。

3. 功率与电流

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。

4. 温度与热特性

  • 工作温度:-40℃+125℃,覆盖工业级(-4085℃)与汽车级(-40~125℃)部分场景;
  • 热时间常数3s:温度变化后阻值稳定的响应速度,适合环境温度、电池温度等非超高频检测;
  • 耗散系数1mW/℃:每升1℃自身功耗增加1mW,辅助电路热管理优化。

三、封装与物理特性

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。

四、可靠性与环境适应性

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。

五、典型应用场景

因高精度、小型化与宽温特性,广泛用于:

  1. 消费电子:手机/平板电池温度检测、无线充电器监控、智能手表环境传感;
  2. 汽车电子:车载空调温度检测、仪表盘环境温度显示、BMS温度采集;
  3. 工业控制:小型电机绕组监测、电源模块补偿、PLC环境校准;
  4. 医疗设备:家用体温计辅助传感、血糖仪温度补偿、监护仪外部检测。

六、选型建议与注意事项

  1. 若需-55~150℃宽温,可考虑顺络同系列宽温版本;
  2. 若需<1s快速响应,可选顺络0201封装NTC;
  3. 电路设计需串联限流电阻,避免过流;温度计算需结合B值、标称阻值与实际温区。

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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