DDZ15-7

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Voltage - Zener (Nom) (Vz):	15V
Tolerance:	±3%
Power - Max:	500mW
Impedance (Max) (Zzt):	18 Ohms
Current - Reverse Leakage @ Vr:	50nA @ 12V
Voltage - Forward (Vf) (Max) @ If:	900mV @ 10mA
Operating Temperature:	-65°C ~ 150°C
Mounting Type:	Surface Mount
Package / Case:	SOD-123
Supplier Device Package:	SOD-123
Base Part Number:	DDZ15

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:Diodes - Zener - Single DZD15-7 Application Field and Working Principle Zener Diodes are widely used in many applications. These devices serve to protect electronics by limiting the amount of voltage that can be applied to the circuit. Zener Diodes are commonly used in voltage regulation, voltage stabilization, voltage reference, and rectification applications. The type of device used in a given application depends on the specifications of the application at hand. This article will discuss the field of applications and working principles of a specific type of Zener Diode, namely the DZD15-7 device. The DZD15-7 is a general-purpose Zener diode with a voltage steepness of 15V and power dissipation of 7W. This diode is especially well-suited for voltage regulation and for protecting sensitive electronics from dangerous levels of voltage due to its high power capability and a low reverse leakage current. As such, the DZD15-7 is used in a wide range of applications, such as voltage clamping, voltage limiting, rectifier circuits, AC-DC power supplies, personal computers, automotive electronics, cellular phones, LED drivers and microprocessor based circuits.The working principles of the DZD15-7 Zener diode are based on the principles of P-N junction diode operations. The diode operates in accordance with the following principles. First, when the diode is reverse-biased, no current is allowed to pass through the device since it is a diode. Second, when the diode is forward-biased, current will pass through it as with any other P-N junction diode. Third, when an external voltage is applied across the device and that voltage is higher than the breakdown voltage of the device, then the diode will begin to allow a current to pass in a reverse direction, this current is called zener current. The breakdown voltage for the DZD15-7 is 15V. The DZD15-7 is also capable of providing a stable reference voltage. When the applied voltage is greater than the breakdown voltage, the voltage across the diode will remain relatively constant (for a given zener current). This voltage regulation allows for a stable voltage to be applied in power supply circuits, as well as to serve as a reference voltage in various circuits, thus providing a much needed stability in the circuit.Lastly, since the DZD15-7 is capable of dissipating a high amount of power, it is also very useful in clamping and limiting the voltage of AC signals. This is due to its high capability to dissipate heat. The device will clamp any voltage whose peaks are higher than the reverse breakdown voltage, thus preventing further power surges and, consequently, protecting sensitive electronics.In conclusion, the DZD15-7 is a very versatile Zener diode with a wide range of application fields and a variety of working principles. The device is capable of serving as a voltage regulator, a voltage stabilizer, a voltage reference, and a voltage clipper, thus protecting sensitive electronics from high voltage surges. It can dissipate up to 7W of power, thus making it very useful in a variety of applications.

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