DDZ9678-7

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Diodes - Zener – Single are used in a variety of applications requiring electrical components to control and regulate electric current. The DDZ9678-7 is a single Zener diode designed for applications requiring both low loss and high power. Its principal fields of application, working principle, and characteristics are discussed in this paper.

Principal Fields of Application

The DDZ9678-7 is used mostly in voltage regulation. It is suited for applications involving the provision of a positive voltage, such as the control of a power circuit thereby regulating its output. Therefore, it is employed in a wide range of electrical equipment, from household appliances to telecommunication systems, from PC and laptop computers to tablet computers. It can also be used in applications such as secondary rectification and negative voltage depletion.Apart from voltage regulation, the DDZ9678-7 is found in optoelectronic and light emitting diode (LED) systems, where it serves as the main component in a power supply circuit. Furthermore, it provides support in electrical pulses, or current pulses, which are used in medical equipment, allowing it to have a wide variety of applications, ranging from biomedical research and life sciences to the medical field.

Working Principle

The DDZ9678-7 is constructed of two P-N-junction semiconductor diodes in series, each with its own respective cathode and an anode. When it is exposed to an external voltage source, electric current flows through the first diode and is then divided evenly between both diodes by the semiconductor junction. This continuous current-recirculation, known as ‘bias current’, charges the junction capacitance of the second diode. When the ‘bias current’ exceeding a certain threshold level, referred to as the ‘zener breakdown’, the second diode is reversed biased, thus allowing current to flow unchecked through both diodes. The result is a regulated voltage across the circuit, which is dependent on the voltage level produced by the external source and the current-voltage characteristics of the diodes.

Characteristics

The DDZ9678-7 has a maximum power dissipation of 1,000 mW and a maximum working voltage of 5.1V. It also features a high surge and spike discharge current, allowing for greater power handling capability. Its breakdown voltage is about 4.4V, and its reverse current (IR) is approximately 200 μA at 250°C. In addition, its capacitance is low at around 0.2~0.6 pF, making it suitable for high frequency noise suppression applications.

The DDZ9678-7 is also a highly reliable component that is capable of providing extreme reliability and long-term performance. It has an exceptionally low failure rate even when subjected to harsh temperature and humidity fluctuations, making it suitable for use in critical applications or extreme environments. Its low reverse leakage current ensures a stable and precise voltage regulation, even under heavy loads or when the equipment is heavily stressed.

In summary, the DDZ9678-7 is a single Zener diode which is used mostly in voltage regulation applications. It is suited for applications which require both low loss and high power, with a maximum power dissipation of 1,000 mW, maximum working voltage of 5.1V, and breakdown voltage around 4.4V. It also offers high reliability and precision voltage regulation under various environmental conditions, with a low reverse leakage current and a low failure rate.

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