With the emergence of PN junctions, several types of diodes also appeared for the most diverse applications. Thus, among the thousands of types of diodes existing in the world of electronics, there is the Schottky Diode, a semiconductor component, a type of diode widely used in high-frequency circuits that require a high working speed. The Schottky diode is an electronic component with operation based on the Schottky effect, which is named after the German physicist Walter Schottky. Botland.store offers a large variety of high-quality Schottky diodes from different manufacturers. If you need this product for your project, don’t hesitate to contact us and order a diode that will suit your expectations. Botland guarantees competitive prices and fast delivery.
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Schottky diodes
Products: 9
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Diode Schottky 1N5819 1A / 40V - 10 pieces
Schottky diode, maximum working voltage of 40 V, current up to 1 A. The set includes 10 pieces.
Index: PAS-00306
Index: PAS-00306
Schottky diode 1N5822 3A / 40V - 10pcs.
Schottky diode, maximum operating voltage 40 V, current up to 3 A. Price for 10 pieces.
Index: PAS-00178
Index: PAS-00178
Diode Schottky BAT85 PHI 0,2A / 30V 4NS - 10pcs
Schottky diodes with a maximum current of 200 mA, 30 V backward voltage.
Index: AKS-14582
Index: AKS-14582
Diode Schottky SB560 5A / 60V - 10pcs
Schottky diodes with a maximum current of 5 A, 60 V back voltage.
Index: AKS-14591
Index: AKS-14591
Diode Schottky MBR20100 CT 20A / 100V
Schottky diode with a maximum current of 20 A and a reverse voltage of 100 V.
Index: AKS-14587
Index: AKS-14587
Diode Schottky MBR10100 10A / 100V
Schottky diode with a maximum current of 10 A and a reverse voltage of 60 V.
Index: AKS-14584
Index: AKS-14584
Diode Schottky SB360 3A / 60V - 10pcs
Schottky diodes with a maximum current of 3 A, 60 V back voltage.
Index: AKS-14590
Index: AKS-14590
Diode Schottky LL48 SMD 0,35A / 40V - 10pcs
Schottky diodes with a maximum current of 350 mA, reverse 40 V.
Index: AKS-14583
Index: AKS-14583
Diode Schottky BAT48 SMD 1A / 40V - 10pcs
Schottky diodes with a maximum current of 1 A, reverse 40 V.
Index: AKS-14581
Index: AKS-14581
Schottky diodes - Initial characteristics
A Schottky diode, also known as a barrier diode or hot carrier diode , is a semiconductor diode formed by combining a semiconductor (generally silicon) with a metal. It is characterized by a low voltage drop in the forward direction (approximately 150 mV - 500 mV compared to 600...700 mV typical for a junction silicon diode) and very fast signal switching . The crystal detectors used in the early days of radio communications and the metal-selenium rectifiers used in early DC power supplies can be considered the first primitive Schottky diodes.
Structure of a Schottky diode
A barrier junction is created in this diode between the metal and the semiconductor, creating the so-called Schottky barrier. Common metals used are molybdenum, platinum, chromium or tungsten; the semiconductor is usually N-type silicon. The metal side is the anode and the silicon is the cathode. The choice of metal and semiconductor combination determines the forward voltage of the diode. The metallic layer is typically deposited on a semiconductor substrate using physical vacuum deposition methods. Due to the small thickness of the metallic layer and the fact that it also serves as an ohmic contact for the anode, diodes of this type are usually less resistant to breakdown and generally less durable than classic junction diodes. The barrier junction is in direct contact with the temperature-sensitive metallization, therefore a Schottky diode can dissipate less heat than an equivalent PN equivalent of equivalent size.
Shottki diode - Principle of operation
Unlike junction diodes, the Schottky diode is a majority-carrier device - only electrons, the excess of which is in the N-type semiconductor, which is the cathode of the element, act as carriers of electric current in this semiconductor device. The metallic anode is electrically neutral. The biggest difference compared to diodes with a PN junction is the regeneration time when switching from the conducting state to the barrier state. In a Schottky diode it is much shorter due to the fact that there is no depletion region at the junction. Due to this, the regeneration time in a Schottky diode ranges from several hundred picoseconds to several dozen nanoseconds, while in ordinary PN diodes it ranges from 100 ns to several microseconds.
Typical applications of Schottky diodes
Schottky diodes are used in many specific applications that take advantage of their unique parameters. A typical application of these elements are impulse converters . Low forward voltage and fast recovery time lead to increased power supply efficiency. Due to the low voltage drop, they are also used to connect redundant power sources and as rectifying diodes in impulse converters . Due to the high current density, these elements are also useful in overvoltage protection systems on sensitive inputs .
Schottky diodes - FAQ
The Schottky diode is characterized by a very short switching time, so it is used, for example, in protection systems for electronic devices, power supplies or voltage converters.
Diodes are electronic elements whose conduction is asymmetrical. They are used, for example, in voltage stabilization systems, lighting technology and radio receivers.
In many situations, the Schottky diode can be replaced with a regular rectifier diode , but each case must be considered individually - especially in the case of delicate electronic devices that can be easily damaged.
A switching diode is a type of diode that quickly changes its conduction state (polarization) from forward to reverse direction. Switching diodes include, among others, Schottky diodes.