CDLL4569A

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Part Status:	Active

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Diodes - Zener - SingleA zener diode, referred to as CDLL4569A, is a type of diode commonly used in electronics circuitry. It has the dual purpose of both rectifying AC to DC and providing a voltage reference. Rectifying means converting alternating current (AC), which periodically reverses direction, to direct current (DC), which flows in one direction only.The CDLL4569A has a reverse-biased zener breakdown voltage of 4.5V, a maximum reverse current of 5.3mA and is housed in a compact SOD-323F package. It is suitable for a wide range of applications such as voltage regulation, current limiting, transient protection, surge suppression and power distribution.When used as a voltage regulator, the CDLL4569A is connected in series with a variable dc voltage, typically in the form of a battery. When the output voltage exceeds the 4.5V breakdown voltage, the CDLL4569A will start to conduct and limit the output voltage.When used as a current limiter, the CDLL4569A is connected in reverse-biased configuration between the supply and load. If a fault occurs in the load, current will start to increase. As the current increases, the voltage across the CDLL4569A will begin to approach its 4.5V breakdown voltage. At this point, the CDLL4569A will start to conduct, thus limiting the current and protecting the load.For transient protection, the CDLL4569A can be connected across the power supply lines. If there are any fluctuations in the power supply, the CDLL4569A will start to conduct, thus clamping the supply lines and protecting the load.The CDLL4569A also has applications in power distribution. In this configuration, the CDLL4569A is connected across the load, forming a low-impedance path for leakage currents. This reduces the transient response and electromagnetic interference (EMI) generated by the circuit.Finally, the CDLL4569A can also be used for surge suppression. In this application, the CDLL4569A is connected in series with the load in a reverse-biased configuration. If there are any spikes in the power supply, they will be directed through the diode, thus limiting their effects on the load.In summary, the CDLL4569A is a versatile device that can be used in a variety of applications due to its reverse-biased zener breakdown voltage of 4.5V, a maximum reverse current of 5.3mA and being housed in a compact SOD-323F package. It can be used for voltage regulation, current limiting, transient protection, surge suppression and power distribution.

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