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A zener diode has a voltage when it reachesbreak over it may be 5v 12vor other voltage as manufactured. The manufacture will produce a 5v zener or is it? This voltage can change from device to device but the mean or nominal voltage will be as close as 5v as possible. So when buying a 5v zener do not expect 5v absolute but a nominal 5 v ZENERS are designed for a specific voltage [ THEREFORE NOMINAL] as mentioned above . depends on the voltage required it can be bought within a specific voltage -/+ a % of the breakdown
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A: A zener diode is manufacture to reverse breakdown at a certain voltage this voltage will remain almost constant no matter how much more voltage is available [within operati…ng parameters]. this zener must be able to sustain both itself operating currents plus the load
It has poor regulation and wastes energy.
It is the voltage at which the zener diode will start to allow current flow in the reverse direction. Useful for regulating voltage.
It is the rated voltage of an electric equipment. It is the voltage at which the device is designed to operate. Another Answer Nominal means 'named'. So a nominal voltage is …the 'named' voltage. For example, the nominal voltage of the supply system in Britain is 230 V. But its actual value is allowed to vary between 216.2 V and 253.0 V.
A zener diode has a relatively flat voltage to current curve when reverse biased. Within limits, you can consider that the voltage across the zener diode is constant. … You can use the zener as the primary regulator, so long as you consider the power requirements and dissipation of both the zener and the load, and you do not overload the zener. More often, the zener is used as a voltage reference in a larger power supply that uses other components, linear or switched, to supply the load.
zener cut in voltage
A: At one time it was used for a regulator because in the reverse voltage breakdown it has the characteristic of keeping the voltage constant as voltage is increased. IT has b…eing replaced by many three terminal regulator with much better regulation and temperature coefficient
A: Both diodes have the same curve in the forward direction however if the zener voltage is reverse it will breakdown at a particular voltage and remain conducting at the volt…age. A regular diode will not do that the to voltage will fold back after breakdown to any voltage
A: A zener is a diode that has the property when reversed bias is applied to breakdown at a particular voltage and remain in that mode until the input voltage is reduced below… the reverse breakdown. For that reason it is used for regulation for control the voltage across a load
A: ZENERS are nothing else then regular diode that have a very predictable reverse breakdown voltage of xx volts. This voltage can be used to limit the input voltage or regula…te on it.
A Zener diode doesn't allow almost any current to flow below a certain voltage. Above this voltage (the breakdown voltage), the amount of current that can flow is almost unlim…ited; meaning that the device acts as an "open" for lower voltages, and as a "short" for higher voltages.
Yes. The intended use of a zener diode is to be reverse biased at the breakdown voltage. In this mode, the zener has high slope in the current to voltage curve, making it a go…od choice for voltage regulation.
It depends on the particular diode. They come in all different values.
A Zener Diode will continue to show its breakdown characteristics until it gets fried... for example a 5 volt zener will get fried at a breakdown voltage of about 6 volts..thi…s happens because of the large amount of current flowing through the small diode which unfortunately the diode cannot handle.
It depends on the design of the circuit.
You cannot read this directly from markings on the device. The markings on diodes (of any type) whether printed characters or color bands indicate the manufacturer's part numb…er. Once you have read this part number (if it is given with color bands you will usually need to add the prefix "1N"), you must look this part number up in a databook. The databook entry for that number will give you all the device parameters.