2EZ4.7D5/TR12

2EZ4.7D5/TR12 is a single zener diode which is mainly used for over-voltage protection, reverse current protection, automatic reset switch and other various functions in electronic appliances. It is available in a wide range of packages and has a relatively low power dissipation.

The working principle of a single zener diode is based on a p-n junction diode, but when the voltage applied to the diode (forward bias) exceeds the breakdown voltage of the diode, the diode will conduct current in both polarities. This breakdown voltage is determined by the zener breakdown effect which allows the diode to operate in either the forward or reverse bias directions.

In over-voltage protection applications, the 2EZ4.7D5/TR12 diode will act as a voltage-regulated device. When the voltage across the diode exceeds the breakdown voltage, the current flowing through the diode will be limited and the excess voltage will be dissipated as heat. In other words, the diode functions as a voltage regulator, keeping the voltage across the diode to a predetermined value.

In reverse current protection applications, the 2EZ4.7D5/TR12 diode can be used to limit the current flowing in the reverse direction and to protect other components from current surges. This is useful for protecting vulnerable components such as transistors or integrated circuits from damage caused by high voltage levels.

In addition, the 2EZ4.7D5/TR12 diode is also frequently used in automatic reset switches, which are vital in electronic systems as they can reset the system if the voltage exceeds a predetermined threshold. This prevents the system from entering an unstable state as a result of an over-voltage condition.

The 2EZ4.7D5/TR12 diode is designed for use in applications that require fast response times and high reliability. It is suitable for a wide range of applications, including power supplies, audio equipment, computing systems, and automotive electronics.

In summary, the 2EZ4.7D5/TR12 is a single zener diode which is mainly used for over-voltage protection, reverse current protection, automatic reset switch and other various functions in electronic appliances. It has a relatively low power dissipation, fast response times and high reliability, making it suitable for a wide range of applications.