NTC Thermistors American Zettler, Inc.（NTC热敏电阻美国zettl公司。）.pdf

NTC Thermistors Description Through traditional craftsmanship and engineering excellence, the Zettler name has symbolized quality and reliability in electrical components for over 100 years in demanding applications such as telecommu- nications systems, computer peripherals, office automation equipment, home appliances, security sys- tems, test and measurement devices, and industrial controls. We also bring that same commitment to the HVAC/R market with an offering of relays, transformers, con- tactors, heat sequencers, temperature sensors, and fan centers. This group of products is used by the HVAC/R industry in both residential and commercial applications. We welcome application challenges, stock over one million units, deliver quick turnaround, and under- stand demanding service requirements. Our unique combination of 100% quality testing, first-class sales and technical support, cost-effective product design, and outstanding product availability offer a highly dependable and responsive resource for fulfilling all your HVAC/R Components needs. NTC Thermistors Characteristics Continous Temperature Sensing Zettler NTC Thermistor Sensors offer economical, accurate and reliable solutions to those applications requiring more extensive sensing than one or two temperature points. NTC thermistor sensors provide a change in resistance with temperature when combined with an electronic circuit and provide a means of continuously measuring temperature over a wide range. NTC Thermistor Sensor Features • Economical • Long-term stability • Custom sensors to fit customer requirements • Custom sensor housings to fit customer requirements • A wide variety of packaging options available Operating Principles of NTC Thermistor Sensor An NTC thermistor is a ceramic semiconductor made with various metal oxides. Their electrical resistance decreases with increasing temperature. This resistance is processe