Lub siab-voltage diode yog cov khoom siv hluav taws xob semiconductor tshwj xeeb tsim los rau siab -voltage ib puag ncig. Nws lub luag haujlwm tseem ceeb yog txhawm rau ua kom muaj qhov sib txawv tam sim no thiab tiv taus siab -voltage surges. Los ntawm cov qauv tsim tshwj xeeb thiab kev xaiv cov khoom siv, cov cuab yeej no tuaj yeem ua haujlwm ruaj khov ntawm qib kilovolt thiab tau siv dav hauv kev hloov hluav taws xob, khoom siv kho mob, thiab kev tswj hwm kev lag luam.
Raws li txoj cai, qhov sib txawv loj tshaj plaws ntawm lub siab -voltage diode thiab ib txwm diode nyob hauv nws qhov hluav taws xob tiv taus. Hauv kev tsim khoom semiconductor, los ntawm kev tswj cov doping concentration thiab junction dav ntawm PN junction, ib txheej thicker depletion yog tsim los disperse lub siab hluav taws xob teb siv. Thaum siv hluav taws xob thim rov qab, txheej txheej depletion dav siv tau zoo txo qhov hluav taws xob gradient, tiv thaiv avalanche tawg. Tsis tas li ntawd, cov qauv tsim tshwj xeeb xws li cov qauv mesa lossis cov phaj phaj thev naus laus zis tuaj yeem ua kom zoo dua cov hluav taws xob xa hluav taws xob, ua kom lub cuab yeej nyob twj ywm hauv lub xeev thaiv txawm tias ntawm 4kV lossis siab dua voltages.
