DDZ18CQ-7

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Diodes - Zener - Single - DDZ18CQ-7 application field and working principle

The DDZ18CQ-7 is a single Zener diode with a wide range of applications and a simple operation. This type of diode is predominantly used as an electronic circuit protection device. It is also used for voltage regulation, as well as rectification and other signal control efforts. In its operation, the DDZ18CQ-7 works in two ways; it conducts regular current and also blocks or reverse current flow. This occurs when the voltage of the diode exceeds a particular level. If a negative voltage is applied to the diode, it will not conduct the current. But if the voltage is increased to a certain level during its forward biased condition, the diode breaks down and starts conducting the current, regulating the voltage. This process of conducting current is known as Zener breakdown.

The DDZ18CQ-7 can also be used for signal generation purposes. In voltage regulator circuits, it works almost like a constant current source. This diode is also suitable for driving LEDs used in various applications. Due to its small on-state resistance, the diode can be used in circuits that require increased speed. In addition, the diode is capable of handling high wattage.

The DDZ18CQ-7 has a reverse breakdown voltage of 4.3 volts, a maximum power dissipation of 2 watts, and a maximum forward current of 75 mA. The maximum forward voltage is 2.1 volts, while the forward and reverse recovery times are 3µs and 8µs respectively. This type of diode has a maximum peak reverse voltage of 6.2 volts and a thermal resistance of 25°C/W.

This type of diode is commonly used in regulatory and rectifying circuits, for limiting over-voltage transients and for AC/DC motor speed control. It can also be utilized in applications that require quick-limiting of current, such as AC surge protectors and current limiters. This diode is also used in audio and sound waveform circuits, as well as other circuits related to signal control. Generally, the DDZ18CQ-7 is preferred for its simplicity, cost-effectiveness, and enhanced durability.

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