CDLL4121

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The CDLL4121 Single Zener Diode is a general purpose device used for applications such as voltage regulation and overvoltage protection. It provides a low voltage drop and a low temperature coefficient in a packaging suitable for automatic placement.

A Zener diode is a type of diode which includes the PN-junction that helps regulate the voltage. When the diode is connected in reverse bias, the voltage across the diode reaches the zener breakdown voltage, allowing it to conduct in the reverse direction. It acts as a voltage stabilizer and current limiter, and is also used to protect against power supply transients, overvoltages and unwanted inductive kickbacks. This particular device features 4.1V of breakdown voltage, with a maximum power rating of 500mW.

Working Principle

CDLL4121 Single Zener Diode works on the principle that when external electric current flow through a diode, an electron-hole pair is created. A voltage is created due to the electric field in a PN junction. When this PN junction, or the Zener diode, is connected in the reverse direction, a Zener breakdown voltage is formed. When the applied voltage is higher than the Zener breakdown voltage, the diode starts to conduct in the reverse direction, from the P zone to the N zone.

This PN junction works as a voltage regulating device; it limits the voltage across the device. As the reverse bias is increased, the breakdown point is reached and the diode starts to conduct in the reverse direction. This limit can be adjusted by changing the reverse bias, allowing the device to act as a voltage regulator. The CDLL4121 Single Zener Diode is designed to provide a voltage regulation from 4.1V to 4.2V, with a maximum power rating of 500mW.

Applications

The CDLL4121 Single Zener Diode is a general purpose device and is widely used for various applications. It can be used in DC/AC power converters, power supplies, voltage regulators, overvoltage protection circuits, and other applications where voltage regulation is needed. It can also be used in AC-DC converters and power amplifiers, as well as in automotive electronics and audio systems.}

The device is also commonly used in computers, laptops and electronics gadgets to handle high voltage surges and protect from any power-related issues. It is also used in appliances, such as TV sets and refrigerators, that require voltage regulation. The device is also used for voltage transient protection in automotive electronic circuits.

This device is a reliable and cost-effective solution for general-purpose voltage regulating applications. The CDLL4121 Single Zener Diode provides reliable performance and is compatible with most standard integrated circuit packages.

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