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Diodes-Zener-Single

A Zener diode is a type of semiconductor diode that is designed to allow current to flow in the forward direction, as would any normal diode, but it also allows it to flow in the reverse direction if the specified voltage, referred to as the breakdown voltage, is also reached. The 2EZ13D5 is a commonly used Zener diode that frequently finds use in many different application fields.

Application Fields

Due to the capability of allowing current in reverse direction, the 2EZ13D5 Zener diode finds a lot of use in many application fields. Commonly, it is mainly used for voltage regulation, input/output protection, and surge protection. It’s lightweight, low cost, and low voltage requirements make it a compelling choice for such applications.

In voltage regulation, the 2EZ13D5 allows a constant, stable voltage output and is commonly used as a shunt regulator. Input/output protection application sees the 2EZ13D5 pre-installed in circuit boards or cards to control the flow of current and protect the hardware within the system in case of brown-outs or power drops.

Also due to the capability of reversing current flow, the 2EZ13D5 Zener diode is also used in surge protection devices. These devices are implemented in computers, TVs, and any electrical device that needs additional protection from high current flow. The 2EZ13D5 would blow out when the current flow passes the safe threshold, thus limiting the energy that can pass through this device.

Working Principle

In regular p-n junction diode, the electrical behavior resembles that of a simple switch. The diode can be in two states: in the forward-bias state, the diode behaves like an open switch and current flows through the diode, whereas in the reverse-bias mode, the diode behaves like a closed switch, blocking current from flowing.

This is not the case for Zener diode, where the diode conducts current in the reverse-bias mode as well. When the external voltage reaches the breakdown value, known as the Zener voltage, current starts flowing through the device, even in the reverse-bias mode. This property makes the Zener diode very suitable in applications where current needs to be regulated.

The 2EZ13D5 works in much the same manner as any other Zener diode. Its nominal breakdown voltage is set at 13V, meaning the maximum reverse-bias voltage the diode can handle without conduction is at 13V. If the applied reverse-bias voltage goes above this value, the diode starts conducting and draws current as needed to maintain the voltage at the set value.

Conclusion

The 2EZ13D5 Zener diode is a popular and useful semiconductor device that finds use in many different application fields due to its ability to allow current flow in the reverse-bias mode. Common uses are voltage regulation, input/output protection, and surge protection. Its low cost and low voltage requirements make it a great choice for many implementations.

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