CZ5351B TR

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Diodes are electronic components with two electrodes. They allow current to flow in one direction and stop current from flowing the other way, making them useful in a range of applications. The CZ5351B TR is a single Zener diode of the bipolar type. It has a wide range of uses and an associated working principle.

CZ5351B TR application field

The CZ5351B TR has a breakdown voltage of -6.2 V as well as a low forward current rating of only 2 mA. This makes it highly suitable for use as a voltage reference or for logic levels in electronic equipment. It can also be used for circuit protection, as when it reaches its breakdown voltage, the current is limited and the voltage drop is very low.

The CZ5351B TR is also suitable for use in shunt regulator applications. This is due to its small forward current rating and its relatively large reverse breakdown voltage. It is often used in battery or overvoltage protection circuits as its low capacitance characteristics provide protection from voltage spikes.

This diode also finds use in switching power supplies as a low-current alternator as it can be used to provide small, fast sampling pulses. It can also be used in large-scale integrated circuits where sub 0.1V precision supply references can be required.

Working Principle

The CZ5351B TR diode is a bipolar diode, meaning that when it is connected in reverse, it produces both N and P type semiconductors allowing for current to flow both directions. When the reverse voltage applied is below the breakdown voltage, the current flow is limited and the junction behaves like a resistor. This is called a Zener breakdown.

When the reverse voltage is above the breakdown voltage, the Zener breakdown creates a valence zone in the semiconductor that consists of P and N type materials. This zone cuts off the current path and limits the voltage drop. This decrease in voltage is known as the Zener knee.

The low forward current rating of the CZ5351B TR even allows it to be used as a rectifier. When the anode of the diode is connected to the positive lead and the cathode is connected to the negative lead, the current is limited and the voltage drop is very small.

The CZ5351B TR is an excellent voltage regulator for low-current applications. It typically has a low turn-on voltage and can regulate the voltage with great accuracy. When a higher current is flowing, the diode will start to exhibit dynamic resistance, and this can be used to regulate the voltage without the need for traditional regulation circuits.

In conclusion, the CZ5351B TR is a reliable and useful single Zener diode that can be used in a wide range of applications. Its low capacitance characteristics and its low forward current rating make it an ideal choice for devices requiring precision voltage reference, shunt regulators, and circuit protection devices. It can also be used as a low-current alternator in switching power supplies, and its dynamic resistance makes it an excellent voltage regulator.

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