It is reported that China Mobile has been introducing Lumia 920T for some time, but they do not seem to be anxious to announce the contract price of the aircraft (before this move suggested that the aircraft's contract price is 4199 yuan). Now users have taken the lead in exposing the packages they have made. From the exposure of the picture, the package targeted at high-end users, is divided into four files namely 1 yuan, 800 yuan, 1200 and 2000 yuan purchase, while users must promise to be in the network for two years.
Judging from the current situation, users who book Lumia 920 in advance will get mobile phones around December 20. It is reported that the quantity will be very small, and that the goods will be sold on the 29th or the end of the month.
Zener Diode, the English name Zener diode, also known as Zener diode. By using the reverse breakdown state of the pn junction, the current can be varied over a wide range and the voltage is substantially constant, and the diode that acts as a voltage regulator is fabricated. [1] This diode is a semiconductor device that has a very high resistance until the critical reverse breakdown voltage. At this critical breakdown point, the reverse resistance is reduced to a small value in this low resistance region. The current is increased and the voltage is kept constant. The Zener diode is binned according to the breakdown voltage. Because of this characteristic, the Zener diode is mainly used as a voltage regulator or voltage reference component. Zener diodes can be connected in series for use at higher voltages, resulting in higher regulated voltages in series.
Zener Diode
Power Zener Diode,Zener Diode,Zener Diode Regulator,Zener Diode 56V
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