1N4747AP/TR12

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1N4747AP/TR12 is a commonly used Zener diode. This diode is mainly used for voltage regulation and surge protection, to ensure a safe and efficient voltage regulation environment. Its application field can be connected in circuits, such as surge suppressors, polarity protectors running in an electronic circuit, voltage clamp circuits, and negative voltage circuits. It is also used as a rectifier in power supplies and in various types of transducers.

Main characteristics of the 1N4747AP/TR12 are as follows:

• Nominal Zener Voltage (Vz): 5.6V
• Maximum Power Dissipation (Pd): 500mW
• Voltage Regulation (ΔVz/Vz): 20%
• Maximum Zener Impedance (Zzt): 1.2Ohm
• Maximum Operating Temperature (Tj): 125°C

The working principle of the 1N4747AP/TR12 Zener diode is simple. With the diode correctly installed in an electronic circuit, when the voltage across it is positive, the diode simply acts as an open circuit. However, when the voltage across it becomes negative, the diode’s body doping produces an electric field, allowing electrons to flow in the reverse direction, thus reducing the reverse voltage of the diode.

When the external voltage is higher than the breakdown voltage of the diode, the diode will be in a breakdown state and electrons will flow in the reverse direction, thus limiting the reverse voltage to a value called the Zener voltage. In this condition, the diode acts as a voltage regulator, maintaining a stable voltage output. This is the most common application of the 1N4747AP/TR12 Zener diode.

Moreover, Zener diode can be used as a switching device in applications such as voltage clamp circuits and polarity protectors. With the reverse bias applied across it, the diode can become a low impedance or a high impedance, depending on the applied voltage.

In conclusion, the 1N4747AP/TR12 Zener diode is a highly versatile electronic component. It is extremely useful because of its diverse applications, including voltage regulation, surge protection, voltage clamp circuits and reverse bias protection. With its various properties, it can be used in various circuit designs to ensure safe and reliable performance.

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