WMSIC Electronic Components

cjiang FNTC0805X103F3950FB

ModelFNTC0805X103F3950FB
Package0805
Brandcjiang
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
cjiang FNTC0805X103F3950FB
Type
CJIANG
Minimum package
4000 圆盘

Technical parameters

Power
100mW
Electronic Component
Electronic Component
Electronic Component
CJIANG
Electronic Component
FNTC0805X103F3950FB
Electronic Component
1
Electronic Component
1.25mm
Package
0805
Electronic Component
NTCThermistor Resistor
Electronic Component
0.039g
Electronic Component
2mm
Electronic Component
10kΩ
Electronic Component
0.85mm
Electronic Component
1
B
±1%
Electronic Component
BM0264590593
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.

FNTC0805X103F3950FB 产品概述 — cjiang(长江微电)

一、产品简介

FNTC0805X103F3950FB 是长江微电(cjiang)推出的一款高精度片式负温度系数热敏电阻(NTC),采用氧化锰、氧化钴、氧化镍等多种金属氧化物经高温烧制成陶瓷体,两端覆盖银电极并进行镍、锡电镀,最终形成符合0805(2.0 × 1.25 × 0.85 mm)封装的小型表面贴装元件。该器件以其显著的阻值温度负相关特性和优良的稳定性,适合在各类电子设备中进行温度监测与控制。

二、主要参数(典型)

  • 标称阻值:10 kΩ(25℃)
  • 阻值公差:±1%
  • B值公差:±1%
  • B值(25℃/50℃):3950 K
  • B值(25℃/85℃):3990 K
  • 功率(额定):100 mW(器件整体耐受)
  • 最大稳态电流(25℃):440 μA(与耗散系数对应)
  • 耗散系数:2 mW/℃(典型)
  • 热时间常数:5 s(典型)
  • 工作温度范围:-40 ℃ ~ +125 ℃
  • 尺寸(L×W×H):2.00 × 1.25 × 0.85 mm
  • 封装:0805,片式表贴

注:耗散系数与最大稳态电流互为校验:在25℃时,440 μA流过10 kΩ时耗散功率约为1.94 mW,接近1℃温升对应的2 mW 耗散系数,说明在该电流下自热效应受控。

三、性能与特性

  • 高精度:阻值与B值均达到±1%等级,适合需要高线性与可重复性的测温应用。
  • 快速响应:5 s 的热时间常数提供较快的热响应能力,利于动态温度检测。
  • 低自热:2 mW/℃ 的耗散系数使得在常用测量电流下自热误差小,便于精确测量。
  • 宽温区稳定性:-40℃ 至 +125℃ 的工作温度覆盖工业与民用多数场景。
  • SMD 兼容:0805 尺寸便于高密度贴装和自动化装配,且电极电镀适配常规回流焊工艺。

四、典型应用场景

  • 电池管理系统(BMS)与充电管理:监测电池组温度,参与充放电保护策略。
  • 温度补偿与温度测量:LCD/LED 驱动、电源输出补偿、温度校准电路。
  • 家用与工业控制:空调、冰箱、热水器、温控器等温度检测点。
  • 消费电子与医疗设备:手机、笔电、便携医疗测温模块等对体积与精度要求高的场合。

五、使用建议与注意事项

  • 测量电路:建议采用恒流测量或分压采样后由 ADC 读取并用 B 参数方程或查表法进行线性化处理。B 参数关系可用经验公式 R(T) = R25 × exp[B × (1/T − 1/T25)](温度以开尔文计)。
  • 自热控制:为减少自热误差,应控制工作电流不超过标称最大稳态电流(440 μA@25℃),并在高精度场合进行低功率测量或间歇测量。
  • 贴装工艺:兼容常规回流焊流程,推荐按照 PCB 设计做好焊盘与热量分布,避免局部过热或热梯度过大。避免多次超高温回流。
  • 安装位置:为获得准确测温值,应确保元件与被测对象有良好热耦合,远离局部热源或散热片干扰。
  • 包装与储存:建议按厂家提供的胶带卷带(Tape & Reel)存放,避免潮湿、强酸碱环境及机械碰撞。

六、选型提示

在需要高精度、稳定性和小体积的温度检测方案中,FNTC0805X103F3950FB 提供了均衡的电阻精度与 B 值精度。若系统对功耗、响应速度或工作温度有特殊需求,可与长江微电技术支持沟通,选择适配的封装或公差等级。

如需样品、详细电气曲线(R–T 曲线)、回流焊推荐曲线或可靠性测试报告,请联系长江微电渠道或供应商获取完整资料。

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