解析热敏电阻定义和种类
热敏电阻是一种对温度敏感的电阻器。它们通常用作温度传感器。术语热敏电阻是“热”和“电阻器”这两个词的缩写。所有电阻器都对温度有一定的依赖性,这通过它们的温度系数来描述。在大多数情况下,温度系数被化,但在热敏电阻的情况下,可以实现高温度系数。与大多数其他电阻器不同,热敏电阻通常具有负温度系数(NTC),这意味着电阻随着温度升高而减小。这些类型称为NTC热敏电阻。具有正温度系数的热敏电阻称为PTC热敏电阻(正温度系数)。
热敏电阻定义
热敏电阻是一种电阻随温度变化而显着变化的电阻器。
类型和应用
热敏电阻通常是陶瓷半导体。在大多数情况下,它们由金属氧化物组成,经过干燥和烧结以获得所需的形状系数。氧化物和添加剂的类型决定了它们的特性行为。对于NTC热敏电阻,常见的材料包括钴、镍、铁、铜和锰。对于PTC热敏电阻,常用的材料有钛酸钡、钛酸锶和钛酸铅。
NTC热敏电阻
当需要在很宽的温度范围内改变电阻时,使用NTC类型。它们通常用作-55℃至200℃范围内的温度传感器,尽管它们可以用来测量更低或更高的温度。它们的受欢迎程度可以归因于其快速响应、可靠性、稳健性和低廉的价格。
正温度系数热敏电阻
PTC型用于需要在一定温度下电阻发生突变的情况。它们在高于指定温度(称为转换温度、转变温度或居里温度)时表现出电阻突然增加。常见的开关温度在60°C至120°C范围内。它们通常用于自调节加热元件和自复位过流保护。
NTC正温度系数
温度系数消极的积极的
金属氧化物钴、镍、铁、锰、钛钡、铅、钛酸锶
常用温度范围-55℃至200℃ 60℃至120℃(切换温度)
应用领域:温度传感和控制、浪涌电流限制、流量测量过流保护、自调节加热器、延时、液位传感。
热敏电阻封装
有多种封装类型和尺寸可供选择。径向引线类型是常见的,主要由环氧树脂制成。对于恶劣环境下的应用,玻璃封装封装更合适。还提供集成封装,例如易于安装的螺纹外壳、接线片或探头。下图显示了可用包类型的一些示例。
热敏电阻符号
根据IEC标准使用以下符号。
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本文由星晴123转载自世强,原文标题为:什么是热敏电阻?热敏电阻定义,本站所有转载文章系出于传递更多信息之目的,且明确注明来源,不希望被转载的媒体或个人可与我们联系,我们将立即进行删除处理。
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【选型】TE Connectivity(泰科TE)传感器选型指南
目录- 数字元件传感器和开发工具 流量传感器 力传感器 湿度传感器 液位传感器 血氧传感器 压电薄膜传感器 位置传感器 压力传感器 速率和惯性传感器 扫描阀及系统 速度传感器 温度传感器 扭矩传感器 超声波传感器 振动传感器 水位传感器
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目录- Company Profile Intelligent Components Product Range Housing types Energy controlling I/O components Switches Control cabinet components Intelligent Components Product Index Contact and General information
型号- 11088013,110149,PFD3-E12,RM21 24 V AC,110146,RM3-1W 230 V AC,110833132670,1108851302,110834131901IP,FRAS 4/21,BMT-AO4,110271,LF-CI4,110151,110270,1108321370,11070713,REWK-E10,11067441203131,11067441203130,1108631370,STM-C12,11083813,1107,1106,11060913,ASD-C,11056301,1103151322,PT-F-C12,KMA-R-F8,1109,110369,BMT-F-DI4,11066001,ASD-C18,KRS-F-E08,SMM-E16 230 V AC,KRS-E06 H,KRS-F-E06,110851131970,11061913,110304412003,110304412004,110304412005,110304412008,1108861321,EDS 208-M-SC,PT-C12 230,BMT-TP,110310412230,110310412231,RTM-C12 230 V,11067441203031,1103104122,11067441203030,LF-SI4,11083913,11061905,BMT-DI10,BMT-F-TP,KRS-E08 HR,11027070,KRA F10,EWIO-9180-M-MODBUS,11070613,1103161322,BMT-F-DI10,110189,110352412008,110352412005,110352412006,PFD2-E12,1102720570,SERIES KRA F8,SERIES KRA F10,110668132722,1108841319IP,110196,110195,1108341319IP,EIW-F-C,TERK-E08,11032401,1106302517,38000-401,MR-F-AO4,110178,1108841319,LF-DIO4/2,1102810520,11085913,EUW-F-C,110836132170,11061925,110185,11027170,MR-F-LD6,11094830,MFRK-F-E08,RM21-21,11061950,110840133270,110890133270,EUW-F-C18,1103150522,KRA-SR-M8/21,11080101,110175,LF-DI2,MC274-4W,EWIO-9180-MODBUS,KRA-SRA-F10/21,LF-DI4,S0/M,1108311319,11066170,MR-AIO4/2-IP65,130280-I,1108541370,11050705,110281052013,KMAI-E08,110352412003,110352412004,LF-TI-IP65,110280,11067370,BMT-F-AI8,11065770,820234-01-9,KMA F8,BMT-F-TO4,LF-F-AOP4,11055601,1108561326,MR-F-DI4,LKS-ZD,11050270,KRS-F-E08 HRP,LF-DIO4/2-IP65,MR-F-DOA4,EIW-F-C18,DRIW-E16,1101500522,11051005,110296412004,11051125,110296412003,MFRK-E12,11043513,MR-DI4-IP65,11050170,ASD-F-C18,110833132601,1105731302,11085413IP,11051010,KRA-S-M6/21,BMT-F-DO4,KD-M8/7A,MARK-E08,RM1-I 24 V DC,11086213,110292032230,850349-02,110834131970,850349-03,BMT-DI4-IP65,RSD-E10,110860133270,BMT-SI4,11051025,110855132670,1108831326IP,1108830526IP,MR-F-SI4,MARK-E08 U,BMT-CI4,LF-AOP4,KD-M8/4E,1106574133,1103160522,ASD-F-C,LF-DO4-IP65,MR-F-CI4,11043413,1106312518,KRA-M6/21,110354412016,BMT-DIO4/2-IP 230 V,1108601332,1108511319IP,KD-S12/11K,11088213,BMT-F-CI4,110905,110906,KRA-F8/21,110903,110904,EWIO₂-MW,110902,KD-S12/11A,1108401332,EDS 205,110909,EDS 208,BMT-F-SI4,LF-AM2/4,NG4,11066670,KRA-M4/1,RM21,1108551326,1104341370,11066770,11089313,110292032215,1105741306,1102740570,KRZ-E08 HR,1108831326,LF-FAM,BMT-TO4,1108331326,KD-M8/7K,11055670,1106584120,KRA-SR-F10/21,MFRK-E08 F,BMT-DO4,MR-F-AI8,1108331326IP,BMT-AI8,MR-F-SM3,MR-F-TO4,KRA-F10/21-21,MR-F-AOP4,11066570,TMR-E12,110831131970,110881131970,EWIO₂,11070813,KRS-E08 3,1108411370,110852132170,TP/FT10,MFRK-E08,MR-F-DO4,1105751319,RTLK-E10,PT-F-C12 230,MR-DIO4/2-IP65,RSDW-E10,KRS-C12 3VHR,LF-F-SI4,11083001,MR-DIO4/2-IP65 230 V,11088813,11061213,KRS1-E08 HR3,110885130270,11071013,KRS-F-C12 3VHR,RM21 230 V AC,DUW-F-C12,110930,110931,15,11083013,11061325,11085313,11027405,110934,110935,DUW-C12,1108591370,11030810,11050208,T/M-F,KRA F8,11084313,11088913,11030805,105731302,110884131970,RTM-C12,EWIO₂-M,PTI-C12 230,1108441370,110837130270,1108330526IP,LF-AO4-IP65,EWIO₂-W,11051305,MR-AO4,FDE 4,SAR 1,11085413,LF-F-DO4,MR-LD6,SAR 4,MR-F-DIO4/2,EUW-C,SAR 5,1108341319,110912,110913,110910,EIW-C18,KRA-S-F8/21,LF-F-AI8,11051310,LF-DI10-IP65,KRS-F-E08 3,KMA-F8,110850131970,1108511319,11050108,KMA-R-E08,1108901332,MR-AOP4,1108811319,110501,110502,FAA 4,11086313,110017101407,11083613210170,MR-F-DI10,110628,110629,11016005270417,11027613,RM3-1W,1108581370,BMT-DI4,KRZ-E08 HR2,11051325,KRA-M8/21-21,110731,1106572770,11065727,ADU-C12,KMAI-F8,MARK-F-E08,11027605,11064513,105741306,LF-F-DI4,110017251407,RM3-2W,1108821370,MR-DOA4,38100-401,1101501322,110720,EWIO-9180-M,105751319,11084113,11065870,EIW-C,110729,110727,110728,31135104,11016005270517,11017905,11051225,KRE-M4/1 AC,11051105,RKAK-E10,1108351302,PV10 F10,11051110,LF-F-CI4,MR-DIO4/2,11073001,LF-F-DIO4/2,110886132170,11017910,BMT-F-AO4,110666,MR-E12,110667,110665,1108551326IP,110883132670,110660,110661,110835130270,11016141280517,MR-SM3,MR-TO4,11080001,MR-AI8,110658412014,RM3-1W 24 V AC,BMT-DIO4/2-IP65,11050710,MR-DO4,LF-DI230,110655,1108871302,110656,130283-I,LTM-E16,1108521321,110659,11056270,11085713,110657,110658,11031505,KAD-C12,1108361321,11050725,11051813,11016013270317,SMM-E16 24 V AC/DC,1105701321,11084213IP,BMT-DIO4/2,110640,110520,110641,11016141280417,BMT-AOP4,MR-DI10,BMT-F-DIO4/2,MR-F-TP,11016005270317,11061513,1108521321IP,1108531370,EWIO₂-M-BM,110676132722,11015005,EWIO-9180-BACNET,PT-C12,LF-F-DI230,817133,EWEK-E10,110518,110639,11085813,1101810507,11061505,1101810508,110017051407,EWIO₂-BM,KRE-M4/1 DC,LTRK-E12,820165-2,11031605,BMT-F-AOP4,1108381370,11070213,RM3-1W 24 V DC,EUW-C18,FAE 4,MR-SI4,11084413,KRS-E06,11028313,1108801370,KRS-E08 HRP,LF-DO4,MR-CI4,110836132101,PTI-C12,LF-AI8,11019601,EWIO₂-W-BM,ENW-E12,1108891370,110214,LF-DM4/4,S0/M-F,11083213,11061525,11027205,KRA-S-F10/21-21,LF-DI10,LF-F-TP,KRS-E08 HR3,110561,11061550,110562,MR-TP,CPW-E12,11061313,110208,SMM-E16,110209,1108371302,11032902,MR-DI4,110887130270,1108881370,KMA-E08,110556,LF-TP,TE2,11086105IP
NTC型BR系列玻璃微珠热敏电阻器
描述- Amphenol Advanced Sensors公司推出的Type BR系列玻璃封装珠状热敏电阻,适用于低成本温度测量、控制或补偿应用。该系列热敏电阻具有快速的热响应时间、坚固的玻璃封装提供密封和更好的应变缓解,长期稳定性优于小型玻璃涂层珠状热敏电阻。产品适用于自加热应用,如液位传感或气体流量测量,推荐用于客户将进行进一步组装操作的所有应用。工作/存储温度范围从-112°F(-80°C)到221°F(105°C)不等,根据材料系统不同而有所差异。
型号- B42,B32,B55,BR16,BR14,BR25,BR23,BR11
NTC B型系列玻璃涂层微珠热敏电阻
描述- 本资料介绍了Amphenol Advanced Sensors公司生产的NTC Type B系列玻璃涂层珠状热敏电阻的特性。该系列热敏电阻具有极小的尺寸、快速的热响应时间、低热容量和高功率灵敏度,适用于多种温度测量、控制和补偿应用。
型号- B10,B43,B35,B14,B05,TYPE B,TYPE B10,B07,TYPE B43,TYPE B35,TYPE B14,TYPE B07,TYPE B05,B-_-_-_-_-_,TYPE B SERIES
LS-XX-XXX-P0-X-X-000通用液位超声波传感器
描述- 该资料介绍了SSI Technologies公司的GPLUS超声波液位传感器。这是一种紧凑型、价格合理的连续液体水平监测解决方案,适用于多种化学品和温度范围。它采用PPS塑料制成,具有高精度,并带有板载热敏电阻以实现温度补偿。GPLUS提供简单的模拟输出、诊断功能、编程流体平均滤波器和简单旋转锁安装方式。
型号- LS-XX-XXX-P0-X-X-000
餐饮产品能力
描述- Littelfuse提供一系列工业级产品,旨在为食品和饮料行业提供电气保护和控制解决方案。产品包括工业熔断器、继电器、传感器、浪涌保护装置和控制设备,旨在减少电气安全风险、限制设备损坏、提高生产力和保护人员安全。产品应用范围涵盖从乳品厂到酿酒厂、肉类加工到面包房等不同领域。Littelfuse还提供电流监测继电器、馈线保护继电器、中性接地电阻器、电压监控器、浪涌保护装置、电容器、热敏电阻探头、RTD元件和探针、接触器和变压器等,以满足不同设备和应用的需求。此外,Littelfuse还提供MROplus计划,帮助客户降低成本、提高工厂安全、减少停机时间和减少库存。
型号- RES,FRN,KTN,FNM,FLSR,FRS,FNQ,KTS,OTS,LLSRK_ID,TRS,A4J,CCMR,LPSRK,LLSRK,RFS,EDCC,A6KR,KLSR,A2KR,FLNR,KTSR,NON,FRNR,NOS,JKS,RF,AF0500,MEN,MEQ,JTD,JHC,KLNR,FLM,JTD_ID,LPJ,LPCC,FLQ,AJT,KTNR,A6D,JLS,NLN,NLS,RLN,LLNRK,A6K,RLS,A2K,OT,SB5000,REN,A6DR,TR
【方案】TE Connectivity(泰科TE) 关于医疗应用传感器的解决方案
描述- TE Connectivity(泰科TE)设计和制造的高规格传感器适用于众多要求严苛的医疗应用,多种产品已通过ISO 13485认证和FDA注册
电子商城
现货市场
服务
可定制温度范围-230℃~1150℃、精度可达±0.1°C;支持NTC传感器、PTC传感器、数字式温度传感器、热电堆温度传感器的额定量程和输出/外形尺寸/工作温度范围等参数定制。
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可定制分流器电阻范围20uΩ~100uΩ,可自由设计铜排形状尺寸,电镀:镀锡/镀镍。支持RoHS指令 、AEC-Q200。认证资格:IATF16949;ISO9001;检测精度:0.1%。
最小起订量: 100个 提交需求>
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