lämpötiladiodityyppis

A "lämpötiladiodi" is a Finnish term that translates to "temperature diode" or "thermal diode." It refers to a semiconductor device that exhibits a change in its electrical resistance with variations in temperature. While not a traditional diode in the sense of having a p-n junction designed for rectification, the term often describes components whose behavior is temperature-dependent and can be approximated by diode-like characteristics in certain operating ranges.

These devices are primarily used as temperature sensors. Their underlying principle relies on the thermistors' properties, particularly negative temperature coefficient (NTC) thermistors, where resistance decreases as temperature increases, or positive temperature coefficient (PTC) thermistors, where resistance increases with temperature. The "diode" aspect might come from how their non-linear temperature-resistance curve can be modeled or linearized using diode equations for specific applications.

Applications for lämpötiladiodi include temperature monitoring in electronic circuits, automotive systems, and industrial equipment. They offer a relatively simple and cost-effective way to measure or detect temperature changes, often integrated into more complex sensor systems. The term itself is less common in international technical literature, with "thermistor" being the more widely recognized and precise term for such temperature-sensitive resistors.