WMSIC Electronic Components

cjiang FNTC0805X104F4250FB

ModelFNTC0805X104F4250FB
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 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
cjiang FNTC0805X104F4250FB
Type
CJIANG
Minimum package
4000 圆盘

Technical parameters

Power
100mW
Electronic Component
Electronic Component
Electronic Component
CJIANG
Electronic Component
FNTC0805X104F4250FB
Electronic Component
1
Electronic Component
1.25mm
Package
0805
Electronic Component
NTCThermistor Resistor
Electronic Component
0.039g
Electronic Component
2mm
Electronic Component
100kΩ
Electronic Component
0.85mm
Electronic Component
1
B
±1%
Electronic Component
BM0264590551
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.

CJ长江微电FNTC0805X104F4250FB NTC热敏电阻产品概述

一、产品身份与典型应用场景

FNTC0805X104F4250FB是长江微电(CJ)推出的0805封装高精度NTC热敏电阻,核心参数为25℃标称阻值100kΩ、25/50℃B值4250K,主打宽温区、高一致性的温度检测与补偿应用。其典型落地场景覆盖多领域:

  • 消费电子:手机电池管理系统(实时监测电池温度,避免过充过放热失控)、智能手环/手表的环境温度检测;
  • 汽车电子:车载空调温度传感器(适应-40℃低温启动)、发动机舱过温保护(耐受125℃高温);
  • 工业控制:小型PLC温度监测模块、电源适配器过温防护;
  • 通信设备:路由器/交换机散热监测,保障设备24小时稳定运行。

二、核心电气参数解析

1. 阻值与精度

25℃标称阻值为100kΩ(104),电阻精度±1%——这一精度远高于普通NTC的±5%,能直接提升温度检测准确性,减少后续校准成本,适合对温度精度要求苛刻的场景(如医疗设备温度监测)。

2. B值特性

  • 25/50℃时B值为4250K,25/85℃时为4310K;
  • B值精度±1%。
    B值是NTC温度-阻值特性的核心参数,不同温区的B值设计确保了宽温下的特性一致性,避免温区跨越时的检测误差(如从室温到高温设备内部的温度监测)。

3. 功率与耗散

  • 额定功率100mW,满足多数低功耗设备的功率需求;
  • 耗散系数2mW/℃。耗散系数越低,NTC自身发热对温度检测的干扰越小,适合低功耗场景下的实时监测(如电池管理系统)。

4. 工作温度范围

覆盖**-40℃~+125℃**,适配从北方冬季户外(-40℃)到工业烤箱(125℃)的全场景需求,无需额外考虑温区适配问题。

三、热学特性与宽温可靠性

1. 热响应速度

热时间常数5s——表示温度变化到最终值的63.2%所需时间,属于较快响应速度,可满足实时过温报警(如电池过温10秒内触发保护)等场景。

2. 宽温稳定性

在-40℃至125℃范围内,阻值与B值的波动被严格控制在精度范围内,长期工作无明显漂移。经测试,1000小时高温老化后,阻值变化率小于0.5%,适合24小时不间断运行的设备。

3. 环境可靠性

采用成熟的NTC陶瓷材料与环氧树脂封装工艺,能承受温度循环(-40℃~125℃循环500次)、湿度(85℃/85%RH环境1000小时)等应力,符合工业级可靠性要求。

四、小型化封装与尺寸规格

封装类型为0805(英制尺寸,对应公制2012),具体尺寸:

  • 长度2mm、宽度1.25mm、高度0.85mm。
    小型化设计适配高密度PCB布局,尤其适合便携式设备(如无线耳机、智能手表)、小型电源模块等对空间要求严格的场景。封装符合IPC标准,兼容回流焊、波峰焊等主流焊接工艺,便于批量生产。

五、品牌品质与适配性

长江微电(CJ)作为国内被动元器件头部厂商,FNTC0805X104F4250FB继承了品牌的高一致性与可靠性:

  • 生产一致性:批量产品的阻值与B值偏差均控制在±1%以内,无需额外筛选,降低采购成本;
  • 环保合规:符合RoHS、REACH等国际环保标准,适配出口产品需求;
  • 替换兼容性:参数覆盖多行业标准,可直接替换同类高精度NTC产品(如村田NTC系列),减少设计变更成本。

该产品凭借高精度、宽温区、小型化等优势,成为消费电子、汽车电子、工业控制等领域温度检测与补偿的优选方案。

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