3EZ91DE3/TR8

The 3EZ91DE3/TR8 diode is a single zinc oxide based diode with a maximum voltage of 8V. It is part of the 3EZ9 series of zener diodes from Vishay Semiconductor and is ideally suited for a wide range of applications.

A zener diode is a special type of diode that is designed to maintain a specific voltage level. It does this by using the behaviour of reverse biasing. When a zener diode is reverse biased, the voltage of the anode drops, allowing a large current to flow through the diode. This current can then be regulated by changing the voltage applied to the diode’s gate.

The 3EZ91DE3/TR8 diode is a special type of zener diode, known as avalanche breakdown diode. The pn-junction of the diode is designed in such a way that when a reverse voltage is applied to it, the current is not only limited by a low resistance, but the initial rise in voltage is limited. This causes the current to “ladder up”, forming an avalanche effect until the desired voltage level is reached.

This type of diode is ideal for applications that require low power and fast switching times, such as switching power supplies, overvoltage protection, voltage regulator circuits and voltage reference circuits. It is also commonly used in opto-isolator circuits to provide a regulated voltage at the output.

The 3EZ91DE3/TR8 diode is a very versatile, robust device and has a low on-resistance, making it ideal for high speed switching applications. It is available in a wide range of voltage levels, with devices ranging from 3V to 24V. This makes it suitable for a wide range of applications, such as LED drivers, audio amplifiers, voltage regulators and more.

The 3EZ91DE3/TR8 is equipped with an overvoltage protection feature, which prevents the diode from breaking down when the applied voltage exceeds its maximum rating. This is an important safety feature, which makes the 3EZ91DE3/TR8 ideal for protecting sensitive equipment and circuits. Additionally, the diode is designed with a low temperature coefficient, ensuring stability over a wide temperature range.

In conclusion, the 3EZ91DE3/TR8 diode from Vishay Semiconductor is a versatile device that offers excellent performance at an affordable price. Its low on-resistance and fast switching times make it ideal for a wide range of applications, from switching power supplies and voltage regulator circuits to opto-isolator circuits and overvoltage protection. Additionally, its overvoltage protection feature and low temperature coefficient ensure the device is safe and stable over a wide temperature range.