WMSIC Electronic Components

KUU KNTC0805/10KF3950

ModelKNTC0805/10KF3950
Package0805
BrandKUU
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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
KUU KNTC0805/10KF3950
Type
KUU
Minimum package
4000 圆盘

Technical parameters

Power
100mW
Electronic Component
Electronic Component
Electronic Component
KUU
Electronic Component
KNTC0805/10KF3950
Electronic Component
1
Electronic Component
1.25mm
Package
0805
Electronic Component
NTCThermistor Resistor
Electronic Component
0.041g
Electronic Component
2mm
Electronic Component
10kΩ
Electronic Component
0.85mm
Electronic Component
1
B
±1%
Electronic Component
BM0227647363
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.

KNTC0805/10KF3950 产品概述

一、产品简介

KNTC0805/10KF3950 是 KUU 品牌的一款高精度表面贴装型负温度系数热敏电阻(NTC),采用 0805 封装,针对温度测量与补偿场合优化。器件在 25℃ 时标称阻值为 10 kΩ,电阻精度 ±1%,B 值(25℃/50℃)3950 K(±1%),同时提供 B 值(25℃/85℃)为 3987 K(±1%),适合对温度灵敏度和线性化要求较高的应用。

二、主要性能参数

  • 阻值(25℃):10 kΩ ±1%
  • B 值(25℃/50℃):3950 K ±1%
  • B 值(25℃/85℃):3987 K ±1%
  • 功率:100 mW(最大耗散功率)
  • 耗散系数:2 mW/℃(自热系数)
  • 热时间常数:5 s
  • 最大稳态电流(25℃):440 μA
  • 工作温度:-40℃ ~ +125℃
  • 封装:0805(长度 2.00 mm × 宽度 1.25 mm × 高度 0.85 mm)
  • 品牌:KUU

三、特点与优势

  • 高精度:10 kΩ ±1% 的初始阻值和 ±1% 的 B 值精度,利于在高精度温度测量与补偿场景减少校准工作量。
  • 小型化:0805 封装适用于空间受限的便携式和嵌入式系统,便于自动贴装与回流焊工艺。
  • 快速响应:热时间常数约 5 s,能较快响应环境温度变化,适合一般在线温度采样。
  • 低自热误差:耗散系数 2 mW/℃,结合低激励电流可将自加热引起的测量误差控制在可接受范围内。
  • 宽温区工作:-40℃ 至 +125℃ 的工作温度满足大多数工业与消费类应用需求。

四、典型应用场景

  • 温度传感与控制(家电、空调、智能恒温器)
  • 电池管理系统(BMS)中的温度监测与均衡策略
  • 工业传感器与过程控制点温度补偿
  • PCB 上的局部温度测量与过温保护
  • 医疗与便携设备的环境温度采集

五、设计与使用建议

  • 激励电流:为降低自热误差,建议使用远低于最大稳态电流的激励条件。参考耗散系数 2 mW/℃,若要求自加热误差 <0.5℃,则测量功率应控制在 1 mW 以下(例如电流 ≈ √(P/R) ≈ √(1mW/10kΩ) ≈ 316 μA)。
  • 测量电路:常用电压分压或恒流激励+ADC 采集方式。若需提高精度,可使用恒流源或四线测量(在高精度场合)。
  • 温度换算:可使用 Beta 模型 R(T) = R0 · exp[B·(1/T - 1/T0)](T 单位为 K)进行温度换算。按 B(25/85)=3987 K 计算,示例:R(85℃) ≈ 10 kΩ × exp[3987·(1/358.15 − 1/298.15)] ≈ 1.07 kΩ(仅作参考,实际使用按器件标称 B 值和精度计算并校验)。
  • 布局与焊接:尽量避免在器件附近放置大功率走线或热源,以减小局部热偏差。遵循 SMT 回流焊工艺规范,避免超过器件和 PCB 的最高回流温度。
  • 老化与校准:长期使用中可依据应用精度需求,做出厂或系统级校准以补偿微小漂移。

六、包装与选型提示

  • 封装为行业通用 0805,便于在自动化贴装线生产。
  • 选型时关注 B 值基准温区(25/50、25/85),在温度区间与系统特性匹配可降低线性化误差。
  • 若需要更低自热或更快响应,可考虑更小阻值或不同封装的 NTC,并在系统设计中权衡功耗与灵敏度。

KNTC0805/10KF3950 适合需要小体积、高精度、可靠稳定温度测量的电子产品。针对具体应用场景,可根据上述参数调整激励方式与软件线性化算法,以获得最佳测量性能。若需样品或更详细的封装与回流参数,请提供需求以便进一步协助。

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