SMBG5920BE3/TR13

The SMBG5920BE3/TR13 diodes are a type of zener diode, a type of diode specifically designed to exploit avalanche breakdown to produce a low, stable and reversible voltage over a range of current conditions. They deliver a minimum of 5.9V and a maximum of 20V of reverse voltage and are glass encapsulated with a cylindrical case. This helps to make them more rugged and reliable and makes them suitable for a variety of applications.

Applications of SMBG5920BE3/TR13

The SMBG5920BE3/TR13 diodes can be used in many applications where precise voltage regulation and precise current limiting are required. Such applications include power supplies and voltage regulators, such as in adjustable-voltage regulators, current-limiting diodes, voltage clamping, precision reference sources, and voltage multiplication. They are also suitable for small-signal and RF applications, such as in amplifiers, power oscillators, and tuning circuits.

Working Principle

The zener diode exploits the physical phenomenon known as “avalanche breakdown” to produce a low, stable, and reversible voltage over a range of current conditions. When a reverse bias voltage is applied to the diode, the electric field in the junction region increases, resulting in a disproportionate increase in the current as the bends and bridges of the inherent defects in the junction are broken down by the overwhelming electric field. This generates free electrons and holes, creating an avalanche effect, and a voltage drop across the diode. This produces a lower, more precise, and more stable voltage than can be achieved with other, unaided diode structures. The breakdown voltage of the diode is determined by the thickness and purity of the intrinsic material, and the surface of the junction.

Conclusion

The SMBG5920BE3/TR13 diodes are a type of zener diode designed to produce a low, stable, and reversible voltage over a range of current conditions. They can be used in many applications, such as in adjustable-voltage regulators, current-limiting diodes, voltage clamping, precision reference sources, voltage multipliers and amplifiers, power oscillators, and tuning circuits. They exploit the physical phenomenon known as “avalanche breakdown” to achieve their low and precise voltage and current regulation.