For NTC thermistor, the most important property is its service life. Long life NTC thermistor is an improvement of the recognition of NTC thermistor, which stresses the importance of service life. Long service life refers that it can work well after experiencing tests of high accuracy, high sensitivity, high reliability, ultra high temperature, and high pressure.(more)

NTC thermistor is a negative temperature coefficient thermistor that is used to measure, monitor or control temperature in temperature system. ATH1R38M0.1%200CL5R3 is a thermistor assembly, which is encapsulated by glass and packaged in an extra compact ring lug. Glass encapsulated is for long term stability and reliability, while compact ring lug is for easy fixing on the target device.(more)

PreviousNext Contact Us Analog Technologies, Inc. 1161 Ringwood Ct, #110 San Jose CA 95131 U. S. A Tel.: 408-748-9100 Fax: 408-770-9187 Email Online Store: www.smtzone.com Home > What's New > White Papers > 12V20A digital Peltier/fan controller Time : Sep 21 2015Source :analogtechnologies Author : Analog Click : ATFC107D is the part number of12V20A digital Peltier controller. ATFC107D Peltier controller is designed to drive and monitor the working status of a thermoelectric cooler (TEC) assembly and a fan assembly. This Peltier controller comes with a digital display for parameter setting and monitoring. It also has compact size and high efficiency (more than 98%). Through USB port, Peltier controller can be connected to PC. Figure 1 is the photo of an actual ATFC107D Peltier controller.(more)

In the installation process, it's necessary to avoid wrong installation, which makes influence to the TEC modules. There are the following points that may affect the reliability of the TEC modules during the installation:(more)

Thermoelectric cooler (TEC) is based on “Peltier effect”, which can both cool and heat. According to changing the polarity of direct current, the same TEC can realize cooling or heating. This effect is achieved by the principle of thermoelectric. In principle, TEC just plays a role of a heat transfer tool.(more)

Thermoelectric coolers (TECs) are built based on Peltier effect, which can both heat and cool depending on the direction of input DC current. Because of having no noise, no vibration, no refrigerant, light weight, compact size and some other advantages, TEC has been widely used for cooling certain components in electronic devices and radio communication equipment.(more)

It can be seen as the reliability test for TECs to make continuous thermal cycling to TECs in a wide temperature rang. Especially temperature of TECs in this process rises to very high. Compared with most applications, this process will cause higher failure rate. Most of failures are rooted in unmatched thermal expansion coefficients of thermal materials and other components. This is inevitable. It performs as initial failure, but sometimes, performance degeneration will be observed before failure.(more)

High reliability and long life time can be achieved when the thermal cycling times is few, the temperature change range is narrow, upper temperature limit is low, as well as that temperature change is slow. On the contrary, in a wide temperature range, high changing speed, many times cycling, it will shorten the life time of TECs largely. It's noteworthy that the absolute life time of TECs depends largely on the total cycling times, not the total time for the cycling.(more)

Thermoelectric cooler (TEC) plays an important role in its application products. According to the characteristics, weakness and application range, the following problems should be determined when selecting TEC.(more)

Continued from the last article. 5. Determining TEC series Selecting TEC series must meet the actual temperature difference requirements, that is, the nominal temperature difference shall be higher than the actual temperature difference, so that it can meet the requirements. However, the series is not too much because TEC price has great improvement with the increase of series.(more)