CDLL3050A-1

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CDLL3050A-1 Application Field and Working Principle

CDLL3050A-1 is a type of Zener single diode, specifically designed to protect logic integrated circuits from electrical overstress. It features a zinc oxide (ZnO) avalanche diode with an operating voltage range of ±36 V and a power dissipation of 350 mW. These properties make CDLL3050A-1 an ideal part for static electricity protection and transient peak voltage protection applications

Working Principle of CDLL3050A-1

The CDLL3050A-1 utilizes a zinc oxide (ZnO) avalanche diode to protect against overvoltage conditions. It acts as a clamping device which is used to protect sensitive components attached to the diode from transient voltage abuse or non-reversible current spikes. The ZnO avalanche diode operates off of a unique principle - when the reverse voltage applied to the diode exceeds a certain threshold (the Zener voltage), the Zener junction in the device begins to conduct current. This current flow increases exponentially with increasing voltage, effectively creating a voltage clamp. The current clamp limits the voltage across the junction at around the specified Zener voltage, thus protecting the attached electronic components from the potential damage caused by the excessive voltage.

Application Fields of CDLL3050A-1

CDLL3050A-1 is primarily used for static electricity protection in computer systems and other electronic devices, but it is also suitable for several other field applications. This includes voltage suppression applications such as supplying low distortion power supply clamps, protecting against induced or misdirected surge voltages, and protecting circuits against fluctuations in power supply voltages. Other application fields include providing protection in safety circuits, telecommunications equipment, and similar industrial electronic equipment.

CDLL3050A-1 is also widely used as a common form of input protection in digital circuit designs. It is resistant to inductive transients, EMT transients, and short circuit currents, making it ideal for circuits where these events may occur. Its relatively low Zener voltage (36V), low forward voltage drop (0.7V typical at 10mA), low capacitance (25pF at 10V), and low Zener noise (4mV typical at 10mA) make it suitable for most industrial applications.

Conclusion

CDLL3050A-1 is a Zener single diode which is primarily used for static electricity protection, but is also suitable for several other field applications. It can be used in static electricity protection computer systems, low distortion power supply clamps, surge voltage protection, safety circuits, telecommunications equipment, and input protection in digital circuit designs. It is resistant to inductive transients, EMT transients, and short circuit currents, making it suitable for most industrial applications.

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