WMSIC Electronic Components

TDK NTCG104BH472HT1

ModelNTCG104BH472HT1
Package0402
BrandTDK
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

20 specifications

Core information

Product name
TDK NTCG104BH472HT1
Type
TDK
Unit
Electronic Component
Minimum package
10000 圆盘

Technical parameters

Power
100mW
Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
TDK
Electronic Component
NTCG104BH472HT1
Electronic Component
1
Electronic Component
0.5mm
Package
0402
Electronic Component
NTCThermistor Resistor
Electronic Component
0.012g
Electronic Component
1mm
Electronic Component
4.7kΩ
Electronic Component
0.5mm
Electronic Component
1
B
±3%
Electronic Component
BM0262575744

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

TDK NTCG104BH472HT1 热敏电阻产品概述

一、产品核心定位

TDK NTCG104BH472HT1是一款0402封装的负温度系数(NTC)热敏电阻,属于TDK热敏电阻系列中的常规精度型号,核心设计目标是在超小体积下实现稳定的温度-阻值特性,适配消费电子、IoT、工业控制等领域对尺寸紧凑性、宽温适应性有要求的温度传感场景。

二、关键电气参数解析

该产品的电气参数围绕「温度传感精度」与「功率耐受能力」两个核心维度设计,关键参数如下:

1. 阻值与精度

  • 标称阻值:25℃环境下为4.7kΩ,精度±5%(符合E24系列常规精度要求,满足大多数非医疗/计量级应用);
  • 阻值特性:随温度升高呈指数下降(NTC典型特性),阻值与温度的关系可通过公式 ( R_t = R_0 \cdot \exp\left[B \cdot \left(\frac{1}{T_t} - \frac{1}{T_0}\right)\right] ) 计算(( T ) 为绝对温度)。

2. B值与精度

B值是NTC热敏电阻的核心温度系数指标,反映阻值随温度变化的灵敏度,该产品针对不同温度区间给出精准B值:

  • 25℃/50℃:4067K±3%;
  • 25℃/75℃:4092K±3%;
  • 25℃/85℃:4100K±3%;
  • 25℃/100℃:4110K±3%;
  • 优势:B值精度±3%保证了多温度区间内的传感一致性,便于用户精准计算实际温度。

3. 功率与电流限制

  • 额定功率:100mW(25℃环境下的最大功率耐受值);
  • 最大稳态电流:460μA(25℃时,由 ( P=I^2R ) 推导得出);
  • 耗散系数:1mW/℃(每1mW功耗会导致自身温度升高1℃,需控制工作电流以降低自热误差)。

三、物理特性与封装

1. 封装与尺寸

  • 封装类型:0402表面贴装封装(英制尺寸0402,对应公制1.0mm×0.5mm×0.5mm);
  • 核心优势:超小体积适配高密度PCB布局,支持自动化贴片生产,适合小型化电子设备(如可穿戴、IoT模块)。

2. 材料特性

采用TDK proprietary NTC陶瓷材料,兼具高灵敏度与长期稳定性,耐温性能可靠,符合常规电子设备的可靠性要求。

四、环境适应性

1. 工作温度范围

  • 温度范围:-40℃ ~ +125℃(覆盖低温户外、高温工业环境);
  • 应用场景:可满足冬季户外IoT传感器、夏季车载电子设备等宽温场景的温度监测需求。

2. 耐环境性能

符合常规表面贴装器件的耐湿、耐振动要求(具体需参考TDK官方 datasheet),适合工业级、消费级产品的可靠性标准。

五、典型应用场景

该产品因小尺寸、宽温、常规精度的特点,广泛应用于以下场景:

1. 消费电子

  • 手机电池管理系统(BMS):监测电芯温度,防止过充过放;
  • 智能充电器:监测充电模块温度,避免过温损坏;
  • 笔记本电脑:CPU、电池温度监测。

2. IoT与传感器网络

  • 户外环境传感器:小型气象节点的环境温度监测;
  • 智能家居设备:智能插座、温湿度传感器模块的温度补偿。

3. 可穿戴设备

  • 智能手表/手环:环境温度或人体体温传感(需配合封装设计);
  • 健康监测设备:小型体征传感器的温度校准。

4. 工业控制

  • 小型PLC控制器:温度监测与补偿;
  • 电机驱动模块:功率器件的过温保护。

六、选型与使用注意事项

  1. 精度匹配:±5%阻值、±3%B值精度适合常规应用,若需医疗/计量级高精度需选择更高精度型号;
  2. 电流控制:实际工作电流应远小于460μA,避免自热效应导致温度测量误差;
  3. 焊接工艺:0402封装需控制焊接温度(一般低于260℃/10s),避免过热损坏器件;
  4. 温度计算:需根据实际工作温度区间选择对应的B值,提高温度计算精度。

TDK NTCG104BH472HT1凭借小封装、宽温、高性价比的优势,成为常规温度传感应用的可靠选择,适用于对尺寸、成本与性能平衡有要求的各类电子设备。

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