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Vishay Intertechnology Introduces New Radial-Leaded PTC Thermistors With Temperature Coeffi ...
For more information:Media contact -&
Andrew Post, Sr. Manager, Global CommunicationsPhone:&
1.610.251.5287&Fax:&
1.610.889.9429&E-mail:&
Sales contact:&
Vishay Intertechnology Introduces New Radial-Leaded PTC Thermistors With Temperature Coefficients of + 4110 ppm/K, Response
Time of & 2s, and Wide - 55°C to + 150°C Temperature Range
Products mentioned:
For more information:Media contact -&
Andrew Post, Sr. Manager, Global CommunicationsPhone:&
1.610.251.5287&Fax:&
1.610.889.9429&E-mail:&
Sales contact:&
This release in:
MALVERN, Pa. — July 19, 2012 — Vishay Intertechnology, Inc. (VSH: NYSE) today introduced a new series of radial-leaded, positive
temperature coefficient (PTC) thermistors. Devices in the new
series feature nickel thin film elements with positive temperature coefficients of + 4110 ppm/K, fast response time of &
2s, and high stability over a wide temperature range from - 55°C to + 150°C.
Available in two sizes with lead pitches of 2.5 mm and 5.0 mm, the thermistors released today offer designers a wide variety
of standard resistance values at + 25°C (R25) from 100 Ω to 5 kΩ, and tolerances of ± 1 % and ± 5 %. Non-standard resistance values and tolerances are available on request.
With their excellent long-term stability (typical & 0.1% drift) and high-temperature performance, devices in the
series can be used for temperature measurement, sensing, compensation, and control in industrial and consumer applications.
In addition, they can replace silicon-based temperature sensors. Typical end products include heating/cooling systems, motor
drives, fan controls, power supplies, and consumer goods.
series thermistors are UL-recognized for the United States and Canada, and consist of a thin film ceramic chip with two tinned,
copper-clad steel wire leads. The devices are compliant to RoHS Directive 2011/65/EU, in accordance to WEEE 2002/96/EC, and
epoxy coated per UL 94 V-0.
Samples and production quantities of the new PTC thermistors are available now, with lead times of ten weeks for larger orders.
Vishay Intertechnology, Inc., a Fortune 1000 Company listed on the NYSE (VSH), is one of the world's largest manufacturers
of discrete semiconductors (diodes, MOSFETs, and infrared optoelectronics) and passive electronic components (resistors, inductors,
and capacitors). These components are used in virtually all types of electronic devices and equipment, in the industrial,
computing, automotive, consumer, telecommunications, military, aerospace, power supplies, and medical markets. Vishay’s product
innovations, successful acquisition strategy, and "one-stop shop" service have made it a global industry leader. Vishay can
be found on the Internet at .
Sales, Authorized Distributors
Technical Questions...物理兴趣小组在研究性学习中了解到PTC热敏电阻是一种新型的半导体陶瓷材料，它具有性能稳定、升温迅速、_百度知道
物理兴趣小组在研究性学习中了解到PTC热敏电阻是一种新型的半导体陶瓷材料，它具有性能稳定、升温迅速、
物理兴趣组研究性习解PTC热敏电阻种新型半导体陶瓷材料具性能稳定、升温迅速、受电源电压波影响等特性制各种加热器产品已金属电阻丝类发热材料理想替代产品．目前已量应用于取暖器、干衣机、风幕机、空调等各种加热器．图甲某种PTC材料R-t图象．（1）研究种PTC材料特性家0℃PTC热敏电阻RT与R0=10Ω定值电阻串联接入电路电源电压恒定16V图乙所示．RT加热初始发现电阻变______（/）电流表示数变______（/）．（2）加热至40℃电流表示数0.1A求RT阻值及电路消耗总功率．（3）组同注意校夏空调使用浪费现象严重想用PTC热敏电阻设计温度自控制电路节约用电．电路设计图丙所示要求室温高达28℃空调才始工作．若已知电磁继电器线圈电阻R010Ω控制电路电源电压6V由测定：继电器线圈电流于或等于20mA继电器衔铁吸合．请帮完电路连接．并结合图甲R-t图象求控制电路电阻箱R1应调阻值
提问者采纳
（1）RT加热温度升高由图甲所示图象知RT阻值减电路总电阻减电源电压变由欧姆定律知电路电流增电流表示数变．（2）由I=知电路总电阻：R===160ΩRT=R-R0=160Ω-10Ω=150Ω；电路消耗总功率：P=UI=16V×0.1A=1.6W；（3）空调器<img class="word-replace" src="/api/getdecpic?picenc=0a007a℃环境工作所R1阻值应AB段．空调电路应接A、B端．温度高于预设高温度热敏电阻阻值减控制电路电流增电磁继电器衔铁吸合空调停止工作；温度低于预设温度电阻增电流减电磁继电器衔铁断空调继续工作．才能实现温度控制．空调电路接C、D两端温度高于预设温度R1阻值减电流增电磁继电器衔铁吸合空调继续工作温度更高能进行温度控制电路图图所示：由I=知左边控制电路R总===300Ω室温t=28℃由图1R=200ΩR0=10ΩR1=300Ω-200Ω-10Ω=90Ω．答：（1）发现电阻变电流表示数变．（2）加热至40℃电流表示数0.1ART阻值150欧姆电路消耗总功率1.6W．（3）电路图图所示；控制电路电阻箱R1应调90欧姆．
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