1N4728A-T

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A 1N4728A-T diode is a member of the ‘Zener – Single’ series of diodes; these are diodes that are specifically designed to operate in an equilibrium state when a high reverse voltage is applied across it. The 1N4728A-T is a 9 watt Zener diode that has a zener voltage of 6.2 volts. It is an axial package diode with a cathode and anode clearly marked, and it has an operating temperature of -55℃ to +125℃. It is a highly versatile diode, and its application fields and working principle will be further discussed in this article.

Application Fields

The 1N4728A-T is used in many different applications, including voltage regulation and measurement, power supplies, surge protection, and many other applications. It can also be used in automotive applications, such as audio systems, infotainment systems, and other electrically demanding applications.

Working Principle

The 1N4728A-T is a Zener diode, which means that it operates in an equilibrium state when a high reverse voltage is applied across it. This equilibrium state makes the diode useful for voltage regulation and measurement, where a precise voltage is needed to regulate the current.

The 1N4728A-T has a zener voltage of 6.2 volts, which means that the diode will not conduct when the reverse voltage applied across it is less than 6.2 volts. If a higher voltage is applied, however, the diode will start to draw current and this current will be proportional to the voltage applied. This is known as the Zener effect - the current rises exponentially with the increasing reverse voltage, until it reaches a steady state.

The 1N4728A-T diode has a very low voltage drop of typically 0.5 volts or less, features low leakage current, and can handle high reverse voltage spikes. This makes it ideal for many applications that require precise voltage regulation.

Conclusion

The 1N4728A-T is a highly versatile Zener-single diode that can be used in a wide range of applications. Its ability to handle a high reverse voltage makes it suitable for voltage regulation and measurement applications as well as for surge protection. Its low voltage drop and low leakage current also make it a perfect choice for automotive applications such as audio systems and infotainment systems.

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