2EZ7.5DE3/TR8

Diodes - Zener - Single

A 2EZ7.5DE3/TR8 is a single Zener diode characterized by a low reverse breakdown voltage of 7.5V at a maximum current of 3mA, with an 0.2V maximum reverse voltage. It is used mainly in switching power supplies, inverters, clippers and voltage stabilizers in general. Its major advantages include high electrical isolation, high surge endurance and an extremely low temperature coefficient of voltage.

Application Field and Working Principle

The 2EZ7.5DE3/TR8 is suitable for use in a wide range of applications, including power supply protection, microcontroller boards for home appliances and industrial electronics. Its main application fields include audio devices, automobile electronics, and in digital circuit boards as a buffer or regulator.

The 2EZ7.5DE3/TR8 is a Zener diode that works in reverse bias mode. The diode tends to conduct current when the forward voltage exceeds the breakdown voltage. This happens when a high voltage, rated above the breakdown voltage, is applied to a Zener diode either through an external source or through its own body, thus allowing the current to flow in reverse. In a reverse biased state, the electric field penetrates the diode, resulting in a current break-down. By precision measurement it is possible to determine the Zener breakdown voltage, which is therefore characteristic of the diode.

The main purpose of a Zener diode in a circuit is to provide a stable voltage. The Zener diode provides a very stable and consistent voltage level, even if there are fluctuations in the external power supply. In a stabilizer circuit, for example, power is drawn from the supply and stored in a capacitor, and the voltage is stabilized using the Zener diode. This can help prevent any sudden change in the output voltage.

The 2EZ7.5DE3/TR8 diode can also be used to protect a circuit against high-voltage spikes. In applications such as televisions, computers, audio systems and other electronic devices, a high-voltage spike may disrupt the operation of the device, leading to potential damage. In order to protect against such spikes, a Zener diode can be used. The diode will absorb the spike and help to limit the amount of current reaching the circuit. This ensures that the circuit is not damaged and continues to function normally.

Finally, the 2EZ7.5DE3/TR8 can be used to ensure accurate and stable voltage regulation for DC power supplies. A circuit that is designed for precise voltage regulation, such as one used in a control board for an air conditioner or electric oven, for example, can benefit from the use of a Zener diode. The diode works to maintain a consistent output voltage, no matter what the input voltage may be. In this way, Zener diodes provide precise and reliable voltage regulation.