WMSIC Electronic Components

muRata NCP03WB473F05RL

ModelNCP03WB473F05RL
Package0201
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 24+

Available for RFQ

Technical data

Product details

20 specifications

Core information

Product name
mu Rata NCP03WB473F05RL
Type
MURATA
Unit
Electronic Component
Minimum package
15000 圆盘

Technical parameters

Power
100mW
Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
MURATA
Electronic Component
NCP03WB473F05RL
Electronic Component
1
Package
0201
Electronic Component
NTCThermistor Resistor
Electronic Component
0.008g
Electronic Component
47kΩ
Electronic Component
1
B
±3%
Electronic Component
BM0257359883
Operating Temperature
40℃~+125℃
Resistor
±5%
B (25℃ / 50℃)
4050K

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

NCP03WB473F05RL 产品概述

一、产品简介

NCP03WB473F05RL 为 muRata(村田)系列微型 NTC 热敏电阻,标称阻值 47 kΩ(25℃),封装 0201(极小型)。该器件具有高精度电阻公差 ±1% 与 B 值(热敏常数)高稳定性(B 值精度 ±3%),适用于对体积、功耗和响应速度有严格要求的便携及消费类电子温度检测与补偿场景。

二、主要电气参数

  • 阻值(25℃):47 kΩ ±1%
  • B 值(25℃/50℃):4050 K
  • B 值(25℃/85℃):4108 K
  • B 值(25℃/100℃):4131 K
  • B 值公差:±3%
  • 最大功率耗散:100 mW(典型环境下)
  • 工作温度范围:-40 ℃ ~ +125 ℃
  • 封装:0201 SMD(超小型表面贴装)

三、温度-阻值关系与典型数值

热敏电阻通常用指数关系描述:R(T) = R25 · exp[B · (1/T - 1/T25)](T 以开尔文计)。基于器件标称值,可估算常用温度点阻值(近似):

  • 50 ℃ ≈ 16.5 kΩ(使用 B=4050K 计算)
  • 85 ℃ ≈ 4.7 kΩ(使用 B=4108K 计算)
  • 100 ℃ ≈ 2.9 kΩ(使用 B=4131K 计算)
    这些值用于电路设计时可作参考,实际测量需考虑 B 值与阻值公差带来的偏差。

四、应用场景

  • 微型温度传感与监测:手机、可穿戴设备、蓝牙耳机等空间受限场合。
  • 电池管理:电芯温度监测、充放电保护温度检测。
  • 温度补偿:晶振、传感器与功率器件的温漂补偿网络。
  • 消费电子与 IoT 终端:对成本与面积敏感但需中等精度的温度测量。

五、设计与使用建议

  • 自发热控制:0201 封装功率耗散限制较低,建议测温时电流尽量小(<1 mW)以避免自发热导致测量误差。
  • 校准策略:器件阻值与 B 值存在公差(±1% 和 ±3%),用于高精度测温时建议系统级校准或采用两点校正。
  • 布局与热耦合:若需快速响应,将元件靠近被测点并保证良好热接触;若需稳定读数,避免直接受热源辐射或风冷影响。
  • 焊接与工艺:支持常规回流焊装配,遵循厂商推荐的温度曲线;贴装、回流及拆卸过程中避免过度机械应力。

六、可靠性与注意事项

  • 储运与环境:工作温度范围 -40 ℃ ~ +125 ℃,长期环境应避免超过规定温度和强潮湿腐蚀性气氛。
  • 清洗与残留:使用清洗工艺后若有残留物可能影响热耦合与读数,建议使用合适清洗剂并验证工艺对温度响应的影响。
  • 机械与热循环:小封装易受机械应力影响,PCB 设计时注意缓冲与合理承载;在频繁热循环场景下需验证长期漂移。

七、选型建议

若设计中优先考虑极小封装及较高阻值(便于与高阻输入匹配)、并能接受中等测温精度与低功耗测量,NCP03WB473F05RL 为合适选择。对更高精度的温度测量,建议结合校准、使用参考电路或选择 B 值与阻值公差更严格的型号。

总结:NCP03WB473F05RL 在微型化、低功耗温度检测与补偿应用中具有明显优势,设计时关注自发热、热耦合和校准策略,可获得稳定且实用的温度测量性能。若需更详细的焊接规范或阻温曲线,请参考厂商技术资料或联系供货商获取原厂数据手册。

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