CDLL5520B

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Centre part of the diodes is formed according to the principle of ablation and the formation of a Zener diode is achieved. It has a special structure that combines the advantages of ablation and alloy doping technologies. It obtains an excellent dynamic characteristics and a wider operating temperature range.

The CDLL5520B is a zener diode, which is commonly used in the fields of amplifier protection devices, uninterruptible power supply (UPS), digital circuit protection, power devices, switching power supply, voltage limitations, and protection circuit.

The CDLL5520B uses an aluminum nitride (AlN) substrate as its substrate. Its p-type base and n-type emitter are formed using an alloy doping process. The Zener diode, which is between the base and emitter, is formed using a combination of the alloy doping process and ablation. The ablation process results in a lower junction resistance and a higher forward current capacity to improve its dynamic response characteristics.

The working principle of the CDLL5520B is the same as a regular diode. It has the same characteristics as a normal diode, such as its forward current capacity, low noise characteristics, low input and output capacitance, small size and high switching speed. However, in addition to these characteristics, the CDLL5520B also has a Zener voltage that can be used to regulate the voltage to a constant value. When the voltage across the Zener diode is greater than its Zener voltage, it will allow the current to flow in the reverse direction until the voltage is reduced below the threshold. This helps prevent excessive voltage and current from damaging other components in the circuit.

In summary, the CDLL5520B is a Zener diode that utilizes the alloy doping process and ablation process to improve its dynamic response characteristics and provide protection against high voltage and current. It is commonly used in amplifier protection, uninterruptible power supplies, digital circuit protection, power devices, and other applications.

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