Zener Diode many variation
zener diodes different values please choose the value you require
A Zener diode is a special type of diode designed to reliably allow current to flow “backwards” (inverted polarity) when a certain set reverse voltage, known as the Zener voltage, is reached.
Zener diodes are manufactured with a great variety of Zener voltages and some are even variable. Some Zener diodes have an abrupt, heavily doped p–n junction with a low Zener voltage, in which case the reverse conduction occurs due to electron quantum tunnelling in the short distance between p and n regions − this is known as the Zener effect, after Clarence Zener. Diodes with a higher Zener voltage have lighter doped junctions which causes their mode of operation to involve avalanche breakdown. Both breakdown types are present in Zener diodes with the Zener effect predominating at lower voltages and avalanche breakdown at higher voltages.
They are used to generate low-power stabilized supply rails from a higher voltage and to provide reference voltages for circuits, especially stabilized power supplies. They are also used to protect circuits from overvoltage, especially electrostatic discharge.
10v 1N4740, 11v 1N4741, 12v 1N4742, 13v 1N4743, 15v 1N4744, 16v 1N4745, 18v 1N4746, 20v 1N4747, 22v 1N4748, 24v 1N4749, 27v 1N4750, 3.3v 1N4728, 3.6v 1N4729, 3.9v 1N4830, 30v 1N4751, 33v 1N4752, 36v 1N4753, 39v 1N4754, 3v 1N4727, 4.3v 1N4731, 4.7v 1N4732, 43v 1N4755, 47v 1N4756, 5.1v 1N4733, 5.6v 1N4734, 6.2v 1N4735, 6.8v 1N4736, 7.5v 1N4737, 8.2v 1N4738, 9.1v 1N4739