WMSIC Electronic Components

KTY81/110,112 KTY81

ModelKTY81/110,112
PackageSOD-70-2
BrandNXP
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

18 specifications

Core information

Product name
NXP KTY81 / 110, 112
Type
NXP
Unit
Electronic Component
Minimum package
4000 袋

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
NXP
Electronic Component
KTY81/110,112
Electronic Component
1
Package
SOD-70-2
Electronic Component
Temperature Sensor
Electronic Component
±1.27℃
Electronic Component
0.216g
Electronic Component
1
Electronic Component
BM0257268288
Electronic Component
55℃~+150℃
Electronic Component
Electronic Component
Electronic Component
4000

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

KTY81/110,112 产品概述

一、产品定位与基本参数

KTY81/110、KTY112 系列为 NXP(恩智浦)提供的温度感测元件,属于正温度系数(PTC)热敏元件,标称阻值为 1 kΩ(在 25℃ 时)。典型工作温度范围为 -55℃ 到 +150℃,测量精度可达 ±1.27℃(具体精度请以出厂检验或批次参数为准)。封装采用 SOD-70-2(小型表面贴装封装),便于贴片工艺与高密度 PCB 应用。

二、主要特性

  • 温度范围宽、耐高温能力好:-55℃~+150℃,适合工业与汽车等宽温场景。
  • 标称阻值 1 kΩ(25℃):便于与常见模拟前端、ADC 和微控制器配合使用。
  • 精度优良:典型精度 ±1.27℃,满足多数温度监测与控制应用的要求。
  • 小型 SOD-70-2 封装:利于自动贴装、限空间安装与散热布局优化。
  • PTC 特性:阻值随温度升高而上升,便于实现热过载保护与温度检测两类应用。

三、典型应用场景

  • 工业设备与过程控制:电机、驱动器、发热元件温度监测与过温保护。
  • 汽车电子(依照车规要求选型验证):电池组、功率模块、充电器的温度检测。
  • 消费电子与通信设备:电源、基站、服务器柜温度管理与散热控制。
  • 温度补偿电路与安全保护:与电阻分压、电桥或比较电路配合使用。

四、使用建议与设计指引

  • 测量电路:常用电压分压或恒流源方式驱动;若对线性度与稳定性有更高要求,建议加运放缓冲或使用测温放大器。
  • 匹配阻值:选取分压电阻时可按目标温度点计算,使输出变化在 ADC 有效量程内以提高分辨率。
  • 自热与功耗:避免过大激励电流导致自热误差,必要时降低驱动电流或采用脉冲测量。
  • 校准:推荐至少进行 1 点(25℃)或 2 点(25℃ 与高温)校准以消除批次差异,提高精度。
  • 焊接与封装处理:遵循器件制造商与行业回流曲线规范进行 SMD 回流焊装,避免在安装过程中产生机械应力影响温度一致性。

五、可靠性与测试注意

  • 长期漂移:热敏电阻类元件在高温环境下可能出现一定漂移,关键应用应做老化与环境应力筛选。
  • 环境防护:如应用在潮湿或腐蚀性环境,应考虑封装保护或涂覆工艺以提高长期稳定性。
  • 出厂检验:关注阻值分布、线性度和温度点精度,必要时要求供应商提供批次检验报告。

六、选型要点与采购建议

  • 确认精度与温漂要求是否满足系统需求(±1.27℃ 为典型值,实际以检验值为准)。
  • 核实封装与 PCB 布局兼容性,提前准备 SOD-70-2 的贴装库文件与回流工艺参数。
  • 若用于汽车或高可靠场景,要求供应商提供相应的资格与认证资料(如 AEC-Q 或相关测试记录)。

总结:KTY81/110、KTY112 系列以其宽温范围、1 kΩ 标称阻值和小型 SOD-70-2 封装,适合广泛的温度监测与保护应用。设计时重点关注驱动方式、自热控制与校准策略,可获得稳定可靠的测温性能。若需更详细的电气参数、阻温曲线或回流曲线,请参考 NXP 官方数据手册或向供应商索取最新技术资料。

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