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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描述- With the C | Logline product group, METZ CONNECT provides consistent, system-capable and intelligent network components for sustainable building automation, maximum protection, optimum process control and efficient energy controlling. Advantages: High performance components shorten assembly time, reduce energy consumption, create transparency or make it possible to resolve several tasks.
型号- 110149,11088013,RM21 24 V AC,PFD3-E12,110146,RM3-1W 230 V AC,110833132670,1108851302,110834131901IP,FRAS 4/21,BMT-AO4,110271,110151,LF-CI4,110270,1108321370,11070713,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,RTM-C12 230 V,110310412231,11067441203031,1103104122,11067441203030,LF-SI4,11061905,11083913,BMT-DI10,KRS-E08 HR,BMT-F-TP,11027070,KRA F10,EWIO-9180-M-MODBUS,11070613,1103161322,BMT-F-DI10,110189,110352412008,110352412005,110352412006,PFD2-E12,SERIES KRA F8,SERIES KRA F10,1102720570,110668132722,110196,1108841319IP,110195,TERK-E08,1108341319IP,EIW-F-C,11032401,1106302517,38000-401,110178,MR-F-AO4,1102810520,LF-DIO4/2,1108841319,11085913,EUW-F-C,110836132170,11061925,110185,11027170,MR-F-LD6,11094830,RM21-21,MFRK-F-E08,11061950,110840133270,110890133270,EUW-F-C18,1103150522,KRA-SR-M8/21,11080101,110175,MC274-4W,LF-DI2,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,EIW-F-C18,MR-F-DOA4,LF-DIO4/2-IP65,DRIW-E16,11051005,1101500522,11051125,110296412004,110296412003,MFRK-E12,11043513,MR-DI4-IP65,ASD-F-C18,11050170,110833132601,1105731302,11085413IP,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,RSD-E10,BMT-DI4-IP65,BMT-SI4,110860133270,11051025,110855132670,1108831326IP,MR-F-SI4,1108830526IP,MARK-E08 U,BMT-CI4,KD-M8/4E,LF-AOP4,1106574133,1103160522,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,KD-S12/11A,110902,1108401332,EDS 205,110909,EDS 208,LF-AM2/4,BMT-F-SI4,NG4,11066670,RM21,KRA-M4/1,1108551326,1104341370,11066770,11089313,110292032215,1105741306,1102740570,KRZ-E08 HR,1108831326,LF-FAM,BMT-TO4,1108331326,KD-M8/7K,11055670,1106584120,MFRK-E08 F,KRA-SR-F10/21,BMT-DO4,MR-F-AI8,1108331326IP,BMT-AI8,MR-F-TO4,MR-F-SM3,KRA-F10/21-21,11066570,TMR-E12,MR-F-AOP4,110831131970,110881131970,EWIO₂,KRS-E08 3,11070813,1108411370,110852132170,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-C12,110930,110931,15,11083013,11061325,11027405,11085313,110934,110935,DUW-C12,1108591370,11030810,11050208,T/M-F,KRA F8,11030805,11084313,11088913,RTM-C12,110884131970,105731302,EWIO₂-M,PTI-C12 230,1108441370,110837130270,1108330526IP,EWIO₂-W,LF-AO4-IP65,11051305,MR-AO4,FDE 4,SAR 1,SAR 4,MR-LD6,11085413,LF-F-DO4,SAR 5,MR-F-DIO4/2,EUW-C,1108341319,110912,110913,110910,EIW-C18,KRA-S-F8/21,LF-F-AI8,11051310,KRS-F-E08 3,LF-DI10-IP65,KMA-F8,110850131970,1108511319,11050108,KMA-R-E08,MR-AOP4,1108901332,1108811319,110501,110502,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,ADU-C12,11065727,KMAI-F8,MARK-F-E08,11027605,11064513,105741306,LF-F-DI4,110017251407,RM3-2W,1108821370,MR-DOA4,110720,38100-401,1101501322,EWIO-9180-M,11084113,105751319,11065870,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-E12,110667,110665,110883132670,1108551326IP,110660,110661,110835130270,11016141280517,MR-TO4,MR-SM3,11080001,MR-AI8,RM3-1W 24 V AC,110658412014,BMT-DIO4/2-IP65,11050710,MR-DO4,110655,LF-DI230,LTM-E16,110656,1108871302,130283-I,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,MR-DI10,BMT-AOP4,MR-F-TP,BMT-F-DIO4/2,11016005270317,11061513,1108521321IP,1108531370,EWIO₂-M-BM,110676132722,11015005,EWIO-9180-BACNET,PT-C12,LF-F-DI230,817133,EWEK-E10,110518,110639,11061505,11085813,1101810507,1101810508,110017051407,EWIO₂-BM,LTRK-E12,KRE-M4/1 DC,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-DI4,1108881370,110887130270,KMA-E08,110556,TE2,LF-TP,11086105IP
【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
红外传感科学技术及其对汽车系统的潜在好处有哪些?
红外温度传感器在过程控制和制造中使用了多年,现在已被接受用于乘用车。必须解决生产、可靠性和成本问题。此外,还必须解决复杂的信号调节和校准问题。因此,汽车工程师越来越熟悉红外传感科学技术及其对汽车系统的潜在好处。
设计经验 发布时间 : 2023-12-10
【产品】B系列玻璃涂层珠状NTC热敏电阻,不受严重环境暴露的影响
Amphenol Sensors(安费诺)子品牌Thermometrics推出的B系列玻璃涂层珠状NTC热敏电阻,产品由玻璃涂层的珠状热敏电阻和细直径铂合金导线组成。特殊的薄玻璃涂层提供气密密封,使这些热敏电阻不受严重环境暴露的影响。它们适用于大多数低成本温度测量,控制和补偿,例如自加热应用,包括液位传感和气体流量测量。
新产品 发布时间 : 2019-08-09
【产品】测量精度高的负温度系数热敏电阻器MF52系列,能长时间稳定工作,互换性、一致性好
松田推出的负温度系数热敏电阻器MF52系列,工作温度为-40℃~125℃,具有测量精度高、体积小、反应速度快、规模化生产、性价比高等特点,可广泛应用于空调设备、暖气设备、电子体温计、液位传感器、汽车电子、电子台历、手机电池等方面。
新产品 发布时间 : 2022-07-12
【产品】微型系列玻璃珠状NTC热敏电阻P20 / P25 / P30/P60 / P65 / P85 / P100
Amphenol Sensors(安费诺)子品牌Thermometrics推出的微型系列玻璃珠状NTC热敏电阻提供一系列微型热探针,产品包括一个大型珠状热敏电阻,密封在防震实心玻璃棒的尖端。它们具有优良的长期稳定性和高可靠性。微型系列玻璃珠状NTC热敏电阻产品主要包括型号P20 / P25 / P30和型号P60 / P65 / P85。
新产品 发布时间 : 2019-08-11
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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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配备KEYSIGHT网络分析仪,可测量无线充电系统发射机/接收机线圈的阻抗,电感L、电阻R、电感C以及品质因数Q,仿真不同充电负载阻抗下的无线充电传输效率。支持到场/视频直播测试,资深专家全程指导。
实验室地址: 深圳 提交需求>
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