WMSIC Electronic Components

Sunlord SDNT0603C104F4250FTF

ModelSDNT0603C104F4250FTF
Package0201
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 Date code within 2 years

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
Sunlord SDNT0603C104F4250FTF
Type
SUNLORD
Minimum package
15000 编带

Technical parameters

Power
100mW
Electronic Component
Electronic Component
Electronic Component
SUNLORD
Electronic Component
SDNT0603C104F4250FTF
Electronic Component
1
Electronic Component
0.3mm
Package
0201
Electronic Component
NTCThermistor Resistor
Electronic Component
0.009g
Electronic Component
0.6mm
Electronic Component
100kΩ
Electronic Component
0.3mm
Electronic Component
1
B
±1%
Electronic Component
BM0258490597
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.

SDNT0603C104F4250FTF 产品概述

一、产品简介

SDNT0603C104F4250FTF 为 Sunlord(顺络)出品的小尺寸 NTC 热敏电阻,阻值 100 kΩ,电阻精度 ±1%,B 值(25℃/50℃)= 4250 K,B 值精度 ±1%。器件体积极小,适合对体积和响应速度有较高要求的便携设备与消费电子温度检测与温度补偿场合。

二、主要电气与热参数

  • 标称阻值:100 kΩ ±1%
  • B 值(25℃/50℃):4250 K ±1%
  • 最大额定功率:100 mW(典型功率限制)
  • 最大稳态电流(25℃):100 μA(限制自加热)
  • 工作温度范围:-55℃ ~ +125℃
  • 耗散系数(热阻换算):1 mW/℃(即每消耗 1 mW 导致约 1℃ 自加热)
  • 热时间常数:3 s

说明:为避免自加热误差,常用工作电流远低于最大稳态电流,例如在 100 μA 时器件耗散 P = I^2·R ≈ 1 mW,对应自加热约 1℃。若要求自加热 <0.1℃,建议电流控制在约 32 μA 以下(P = 0.1 mW)。

三、外形与机械特性

  • 封装:0201(超小型 SMD)
  • 尺寸(典型):长 0.6 mm × 宽 0.3 mm × 高 0.3 mm 超小封装适合高密度 PCB 布局,但对贴装精度、回流焊温度曲线与视觉检测提出更高要求。

四、应用场景

  • 移动设备与可穿戴产品的温度检测
  • 电池组电芯温度监控与管理
  • 温度补偿(如晶振、传感器偏移补偿)
  • 小型家电、通讯设备与物联网终端的过温告警与温度校准

五、设计与布局建议

  1. 电路使用:建议将 NTC 作为分压网络的一部分,与高阻值上拉/下拉电阻配合,选择测量放大器或 ADC 输入的阻抗与采样时间以保证稳定读数。
  2. 自加热控制:根据测量精度要求限制测量电流(使用短脉冲激励并在稳态前采样可降低自加热影响)。
  3. 板级布局:避免紧邻大功率器件或热源,尽量在被测点局部留空或使用热过孔改善热传导一致性。0201 封装对焊盘设计与焊膏印刷要求严格,推荐遵循厂方 PCB land pattern。
  4. 贴装与回流:使用高精度贴装机与经过验证的回流曲线,避免过长高温暴露导致性能退化。

六、可靠性与注意事项

  • 存储与贴装:遵循常规 SMD 湿敏等级处理流程,避免长期潮湿环境存放。
  • 测试与校准:出厂精度高,但在系统中建议做一次现场校准以消除 PCB 应力与热耦合误差。
  • 环境应力:工作温度范围宽,但长期在高温或频繁热循环环境下需关注漂移与寿命影响。

七、结论

SDNT0603C104F4250FTF(Sunlord)以其 100 kΩ、±1% 精度和 4250 K 的高 B 值,结合超小 0201 封装,适用于对尺寸与测量精度均有要求的温度检测与补偿场合。合理控制激励电流与优化 PCB 热布局,可最大限度发挥该器件的稳定性与响应性能。若需进一步的封装图、温漂曲线或参考电路,请提供具体应用场景以便给出更针对性的建议。

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