Junction temperature


Junction temperature

Junction temperature is the highest temperature of the actual semiconductor in an electronic device. In operation it is higher than case temperature, the temperature of the part's exterior. The difference is equal to the amount of heat transferred from the junction to case times the junction-to-case thermal resistance.

Maximum junction temperature is specified in a part's datasheet and is used when calculating the necessary case-to-ambient thermal resistance for a given power dissipation. This in turn is used to select an appropriate heat sink if necessary.


Wikimedia Foundation. 2010.

Look at other dictionaries:

  • virtual junction temperature — virtualioji sandūros temperatūra statusas T sritis radioelektronika atitikmenys: angl. virtual junction temperature vok. Ersatz Sperrschichttemperatur, f rus. виртуальная температура перехода, f pranc. température virtuelle de jonction, f …   Radioelektronikos terminų žodynas

  • température virtuelle de jonction — virtualioji sandūros temperatūra statusas T sritis radioelektronika atitikmenys: angl. virtual junction temperature vok. Ersatz Sperrschichttemperatur, f rus. виртуальная температура перехода, f pranc. température virtuelle de jonction, f …   Radioelektronikos terminų žodynas

  • Junction City, Kansas — Infobox Settlement official name = Junction City, Kansas settlement type = City nickname = motto = imagesize = image caption = image imagesize = image caption = image mapsize = 250px map caption = Location of Junction City, Kansas mapsize1 = map… …   Wikipedia

  • Bipolar junction transistor — BJT redirects here. For the Japanese language proficiency test, see Business Japanese Proficiency Test. PNP …   Wikipedia

  • High-temperature superconductivity — Unsolved problems in physics What causes superconductivity at temperatures above 50 kelvin? High temperature superconductors (abbreviated high Tc or HTS) are materials that have a superconducting transition temperature (Tc) above 30 K… …   Wikipedia

  • Delta Junction, Alaska — Delta Junction   City   …   Wikipedia

  • p-n junction — A silicon p–n junction with no applied voltage. A p–n junction is formed at the boundary between a P type and N type semiconductor created in a single crystal of semiconductor by doping, for example by ion implantation, diffusion of dopants, or… …   Wikipedia

  • Grand Junction, Colorado — Infobox Settlement official name = City of Grand Junction, Colorado other name = native name = nickname = settlement type = City motto = imagesize = image caption = flag size = image seal size = image shield = shield size = image blank emblem =… …   Wikipedia

  • Magnetic Tunnel Junction — Magnetischer Tunnelkontakt (schematisch) Der magnetische Tunnelwiderstand (engl. Tunnel Magneto Resistance, Abk: TMR) ist ein magnetoresistiver Effekt, der in magnetischen Tunnelkontakten auftritt. Dabei handelt es sich um ein Bauelement… …   Deutsch Wikipedia

  • Pi Josephson junction — A pi Josephson Junction is a specific instance of a Josephson Junction where the Josephson phase phi is equal to pi in the ground state, i.e. when no external currents or magnetic fields are applied to the Josephson junction. Background The… …   Wikipedia