WMSIC Electronic Components

muRata NCU15WB473F6SRC

ModelNCU15WB473F6SRC
Package0402
BrandmuRata
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
mu Rata NCU15WB473F6SRC
Type
MURATA
Unit
Electronic Component
Minimum package
10000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
MURATA
Electronic Component
NCU15WB473F6SRC
Electronic Component
1
Electronic Component
0.5mm
Package
0402
Electronic Component
NTCThermistor Resistor
Electronic Component
0.012g
Electronic Component
1mm
Electronic Component
47kΩ
Electronic Component
1
B
±1%
Electronic Component
BM0259566438
Operating Temperature
55℃~+150℃
Resistor
±1%

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

muRata NCU15WB473F6SRC(47kΩ NTC)产品概述

一、产品简介

muRata NCU15WB473F6SRC 是一款精密小型 NTC 热敏电阻,标称阻值 47 kΩ(25 ℃)。器件采用片式封装,尺寸约为 1.0 mm × 0.5 mm,适合对体积、响应速度和精度有较高要求的温度检测应用。该型号具有高精度 B 值(B 值精度 ±1%)、宽工作温度范围(-40 ℃ 至 +150 ℃),适用于工业、消费电子及电源等领域的温度检测与控制。

二、主要参数与性能特点

  • 标称阻值:47 kΩ(25 ℃)
  • B 值(25/50 ℃):4050 K
  • B 值(25/85 ℃):4108 K
  • B 值(25/100 ℃):4131 K
  • B 值精度:±1%
  • 工作温度范围:-40 ℃ ~ +150 ℃
  • 尺寸:长 1.0 mm × 宽 0.5 mm(小型化设计)
  • 器件类型:NTC(负温度系数)热敏电阻

性能亮点:

  • 精确的 B 值使温度-电阻转换的一致性和可重复性优秀,便于出厂校准或软件标定;
  • 微小尺寸带来低热容、快速的响应时间,适合需要快速测温或局部温度监测的场合;
  • 宽温区适应能力强,可在低温严寒与高温环境下稳定工作。

三、典型应用场景

  • 便携终端、电池组温度监控(电池保护与温度补偿)
  • 电源和充电器的温度侦测与过温保护
  • 小型环境传感器和智能家居温度采集
  • 工业控制中局部热点监测
  • 医疗便携设备的体表或环境温度检测(需按医疗标准评估)

四、使用与设计建议

  • 温度-阻值转换:建议使用 B 参数公式进行工程计算:R(T) = R0 * exp[B*(1/T - 1/T0)](T 以开尔文为单位,R0 为 25 ℃ 时阻值)。为提高精度,也可采用 Steinhart–Hart 近似方程进行拟合。
  • 建议电路:常见做法是与上拉/下拉电阻构成分压,直接送入 ADC 采样。为减少自热误差,应使通过热敏电阻的功率足够小(通常 <1 mW,根据具体环境和器件热阻而定)。
  • ADC 接口:合理选取分压电阻值以把测量范围映射到 ADC 有效输入范围,且避免受 ADC 输入阻抗影响造成误差。
  • 校准:出厂批次间差异低,但对高精度应用建议在系统中做单点或多点标定以消除系统误差(PCB 温漂、贴装位置差异等)。

五、封装与可靠性注意事项

  • 小尺寸封装有利于快速响应,但对焊接与贴装精度要求高。推荐在设计 PCB 时预留合适焊盘并遵循厂商的推荐回流工艺。
  • 器件允许的工作温度宽,但在高温长期使用时,应关注长期漂移与老化影响,必要时做寿命试验确认。
  • 避免在高功率消耗环境下直接暴露于热源以免自热影响测温精度。

六、选型与替代考虑

  • 若系统需要更低阻值以降低噪声敏感性或兼容不同的测量电路,可选取与之阻值相近的其他型号;若需要更高灵敏度或更窄温区精度,可优先考虑 B 值更高或更精确标定的器件。
  • 注意区分“测温用 NTC”和“浪涌限制用 NTC(NTC inrush)”,前者强调阻值-温度关系与精度,后者强调高功率耗散,两者不可互换。

七、典型电路与注意事项

  • 分压结构:将 NCU15WB473F6SRC 与固定电阻构成分压,分压中点接 ADC;注意选择固定电阻使分压值在待测温度范围内具有足够的分辨率。
  • 差分测量与滤波:为抑制干扰,可采用差分测量、适当的采样电容及数字滤波算法(如移动平均或卡尔曼滤波)提升测温稳定性。
  • 自热与瞬态响应:器件小尺寸意味着低热容、响应快,但同时更容易受电流自热影响,测量电流应尽量降低且采样间隔与平均策略需兼顾响应速度与精度。

八、结语

NCU15WB473F6SRC 以其高精度 B 值、紧凑体积和宽工作温度范围,适合在空间受限且对温度精度要求较高的场景中作为温度传感元件。设计时应关注自热、焊接工艺与系统校准,结合合适的电路与软件处理,可以在多种消费电子与工业控制应用中实现可靠、精确的温度测量。有关焊接曲线、详细电气特性与可靠性数据,建议参阅 muRata 官方规格书以获得完整的工程指导。

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