WMSIC Electronic Components

Sunlord SDNT1608X103F3950FTF

ModelSDNT1608X103F3950FTF
Package0603
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 SDNT1608X103F3950FTF
Type
SUNLORD
Minimum package
4000 圆盘

Technical parameters

Power
100mW
Electronic Component
Electronic Component
Electronic Component
SUNLORD
Electronic Component
SDNT1608X103F3950FTF
Electronic Component
1
Electronic Component
0.8mm
Package
0603
Electronic Component
NTCThermistor Resistor
Electronic Component
0.027g
Electronic Component
1.6mm
Electronic Component
10kΩ
Electronic Component
0.8mm
Electronic Component
1
B
±1%
Electronic Component
BM0228062324
Operating Temperature
55℃~+125℃

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

SDNT1608X103F3950FTF — 0603 封装 NTC 热敏电阻 产品概述

一、产品简介

SDNT1608X103F3950FTF 为 Sunlord(顺络) 生产的 0603 封装 NTC 热敏电阻,标称阻值 10 kΩ(25℃),阻值精度 ±1%,B 值(25℃/50℃)为 3950 K(精度 ±1%)。器件尺寸 1.6 × 0.8 × 0.8 mm,工作温度范围 -55℃ 到 +125℃,热时间常数 5 s,适合对体积和响应速度有要求的温度检测与补偿场合。

二、主要电气与热特性

  • 阻值(25℃):10 kΩ,±1%
  • B 值(25℃/50℃):3950 K,±1%(用于温度与阻值换算:R(T)=R25·exp[B(1/T-1/T25)],温度单位 K)
  • 额定功率:100 mW(瞬态或短时参考)
  • 最大稳态电流(25℃):330 μA(对应约 1.09 mW 功耗)
  • 耗散系数:1 mW/℃(即器件每吸收 1 mW 功率约升温 1℃)
  • 热时间常数:5 s(达到 ~63% 温度变化所需时间)

注:尽管额定功率标为 100 mW,由于小体积和低耗散系数,连续使用时应依据耗散系数限制功耗以避免自加热对测量精度的影响。

三、应用场景

  • 便携式、穿戴式设备温度检测(体积受限)
  • 电池组或电源管理的温度采样与过温保护
  • 环境温度监测、空调/家电温度补偿
  • PCB 上温度补偿(晶振、ADC、传感器偏置等)

四、使用与设计建议

  • 测量电路:常用电压分压(NTC 与上/下拉电阻),建议分压电阻在 10 kΩ 附近以在 25℃ 获得最佳灵敏度;若需低自加热,选择更大阻值并降低测量电流。
  • 自加热控制:利用耗散系数估算温升 ΔT = P/δ;例如最大稳态电流 330 μA 对应功耗 ≈1.09 mW,约引起 ~1.1℃ 升温。为获得更高精度,应将工作电流控制在更低值(如 <100 μA)。
  • 响应速度:热时间常数 5 s,常规设计取 3–5 倍时间常数(≈15–25 s)可接近稳态值;快速采样需考虑滤波与平均以抵消延迟。
  • 焊接与工艺:0603 标准回流焊兼容,建议遵循厂家回流曲线;避免长时间高温暴露影响精度与长期可靠性。

五、可靠性与储存

  • 工作温度范围宽 (-55℃~+125℃),适用于工业级应用。
  • 储存与搬运时避免强震动与机械冲击,保持干燥环境,避免长期高温潮湿造成参数漂移。
  • 如需批量长期一致性,建议在设计阶段加入温度校准或标定步骤以补偿器件公差与 B 值偏差。

六、选型要点

  • 若要求更高灵敏度或更小自加热,可考虑更高阻值型号;若要求更快响应或更高功率承受能力,则选更大封装的 NTC。
  • 本型号以 ±1% 阻值与 ±1% B 值提供较高温度测量精度,适合对准确度有较高要求的便携与工业应用。

如需参考电路样例、阻值-温度对照表或批量包装信息(带卷/盘装规格),可提供进一步资料以便优化电路与生产应用。

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