1N5658

Transient Voltage Suppression (TVS) diodes are also known as supressors, clampers, lightning arresters or spark gaps. They are semiconductor devices specifically designed to protect sensitive electronics from voltage spikes. The 1N5658, also known as the Zener Diode, is an avalanche diode, consisting of a depletion-mode, junction-barrier semiconductor, to provide protection for a wide variety of electronic systems in a variety of environments.

The 1N5658 is designed and rated for high DO-41 footprints, and is available in 9 common voltage values from 6.8V to 40V. Its maximum working voltage ranges from 5.5V to 42V, depending on the particular voltage grade, and maximum power rating is 1.3W. The operating temperature range is -65°C to +175°C.

The main application field for 1N5658 is for protection against abnormal transient over-voltage events in lines and circuits. These protect against events such as electro-static discharge, lightning and voltage spikes in the system. The 1N5658 is capable of protecting circuits that are operating in the order of kilovolts range, as is typical in telecommunications circuits, as well as those operating in the range of millivolts.

The typical working principle of 1N5658 is by the breakdown of the junction barrier when the reverse voltage exceeds a certain threshold. The diode then ‘clamps’ the voltage at a certain level in order to protect delicate circuitry. This ‘clamping’ occurs quickly, usually within a few microseconds, and dissipates the surge energy, which would otherwise damage the sensitive components.

The 1N5658 is also capable of reducing both conducted and radiated emissions. The diode itself reduces EFT and surge related emissions, and also provides noise immunity against transient voltage surges. It is used in circuits that require protection against noise and ESD, especially in lines with high noise.

In summary, the 1N5658 is an avalanche diode specifically designed for a wide variety of environments and applications. It is used for protection against extreme transient events such as lightning and also for reducing conducted and radiated emissions. Its working principle is based on the breakdown of the junction barrier when the voltage exceeds a certain threshold, and it then ‘clamps’ the voltage at a certain level in order to protect sensitive circuitry.