What does the diode symbol mean in electronics?
This symbol represents a generic diode or a rectifier diode. It is an electronic component made of semiconductor that allow current flow in one direction and block it in reverse direction. It is an electronic component made of semiconductor that allow current flow in one direction and block it in reverse direction.
What kind of diode has no p-n junction?
Zener diode is a type of diode that allows the flow of current in forward direction as well as reverse direction but when the reverse voltage reaches the breakdown voltage known as Zener voltage. This type of diode made from of a small junction between an N-type semiconductor and a metal. It has no P-N junction like normal diodes.
Is the diode a plate or a cathode?
The diode is a semiconductor device that allows the current to flow in one direction only. It has two electrodes called anode or plate and cathode, it uses the rectifying properties of the union between type P and N materials of a semiconductor. This symbols can be represented inside a circle.
What are the characteristics of a junction diode?
Terminal (I-V) Characteristics of a Junction Diode: There are still other parameters like the Power dissipation, Thermal Resistance etc. associated with a diode. These values can also be found in the datasheet of the diode.
What is the forward voltage of a germanium diode?
Forward-biased Diode There is a small drop of voltage across the diode when the diode is forward-biased and the current is conducting. For silicon diodes, the forward voltage is 690mV and for germanium, 300mV is the forward voltage.
What kind of diodes are used for reverse bias?
This type of photo diode is made from two diodes in a single package with one common terminal i.e. cathode. Transient voltage suppression diode is a type of diode that is used for suppressing high voltage spikes. It is used for protecting circuit in reversed bias (Unidirectional TVS)
Why are Zener diodes used in power supplies?
Zener diodes are widely used in power supplies to provide a reference voltage. It has a lower forward voltage than other silicon PN junction diodes. The drop will be seen where there is low current and at that stage, voltage ranges between 0.15 and 0.4 volts. These are constructed differently in order to obtain that performance.