DDZ21Q-7

Series:	Automotive, AEC-Q101
Packaging:	Tape & Reel (TR)
Part Status:	Active
Voltage - Zener (Nom) (Vz):	21.18V
Tolerance:	±3%
Power - Max:	310mW
Impedance (Max) (Zzt):	30 Ohms
Current - Reverse Leakage @ Vr:	50nA @ 17V
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

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< P > DDZ21q - 7 is a single Zener diode with a wide range of applications in electronics. Zener diodes are designed to provide a stable voltage output with a low forward voltage drop and high voltage breakdown capability. It is the most commonly used type of diode for regulating and limiting current in electronics circuits. The DDZ21q - 7 has a reverse breakdown voltage of 7 volts and a maximum operating temperature of 125°C.< P > The main application for the DDZ21q - 7 is voltage regulation. This is achieved by connecting it in series with a filter capacitor to provide an output voltage of 7 volts. This is useful in devices like audio amplifiers where it can be used to regulate the power supply voltage to a uniform level. It can also be used as a voltage reference in other applications such as temperature control and protection circuits.< P > The working principle of a Zener diode is based on the avalanche breakdown of the diode at a certain voltage. This is known as the breakdown voltage. In the case of the DDZ21q - 7, this is 7 volts. If the voltage across the diode exceeds this value, the diode will enter a conducting state, allowing current to flow. The current is limited by the internal resistance of the diode, which is determined by its design. This ensures that the output voltage remains stable even when the input voltage fluctuates.< P > In addition to voltage regulation applications, the DDZ21q - 7 can also be used for power control. Its low forward voltage drop and high voltage breakdown capability makes it suitable for controlling current in relay circuits or voltage regulators. It can also be used as a temperature sensing device to detect temperature variation and trigger an alarm or other action.< P > The DDZ21q - 7 is a versatile device that can be used for numerous applications in electronic circuits. Its low forward voltage drop, high voltage breakdown capability and adjustable output current make it ideal for a range of voltage regulation and power control applications. It is also reliable and easy to use, making it a popular choice in many electronics projects.

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