DSSK20-015A

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Diodes - Rectifiers - Arrays

The DSSE20-015A is an array of avalanche rectifiers diodes for high frequency switching applications, available in ultra-small surface-mount packages. It consists of two sensitive gate Silicon Controlled Rectifiers (SCRs) and two high voltage integrated high-speed Schottky barrier diodes connected in inverse parallel configuration. This device is intended for low voltage switching applications, where high frequency switching of currents up to 2A is required.

Application Fields

The DSSE20-015A\'s applications are mainly in the area of power distribution and management such as DC motor control, generator control and industrial lighting. Other applications include motor control applications, DC-DC converters, AC-DC switching power supplies, battery chargers, PC servers, consumer electronics and automotive electronics.

Working Principle

The DSSE20-015A is a combination of two sensitive gate Silicon Controlled Rectifiers (SCRs) and two high voltage integrated high-speed Schottky barrier diodes connected in inverse parallel configuration. When a small current is applied to its gate, the SCR\'s path via the silicon semiconductor turns conducting and the alternating current (AC) flows through it. Whenever this occurs, the Schottky barrierd diodes provide a high voltage switching and are capable of switching current up to 2A.

The SCR is made up of two layers of p and n type semiconductor material, and their structure enables a certain stability, enabling fast and reliable switching over a wide frequency range. As there are two diodes connected, if one of them breaks down it can be immediately replaced. Furthermore, the integrated Schottky barrier diodes facilitate a low voltage drop.

The DSSE20-015A is also equipped with a voltage regulator circuit in order to stabilize the current switch and provide a high protection against overvoltage. It is capable of continuously working in temperatures up to 175°C, and its reverse-biased configurations can be operated in temperatures up to 225°C.

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