Schottky Diodes & Rectifiers
A Schottky Diode, sometimes referred to as a Barrier Diode or a Hot Carrier Diode, is a metal semiconductor with a fast switching action and an accompanying low forward voltage drop, with a small voltage drop across the terminals when current flows through the diode. Where a standard diode has a voltage drop between 0.6 and 1.7 volts, a Schottky's drop is between 0.15 and 0.45 volts. This lower voltage drop facilitates a high switching speed as well as improved system efficiency.
Schottky diodes are commonly used in power rectification, voltage clamping, and prevention of reverse current flow. Their high efficiency and fast switching make them ideal for use in RF applications, power supplies, and photovoltaic systems. At RS, we have an extensive range of Schottky Diodes from leading brands across the industry, including DiodesZetex, Nexperia, ON Semiconductor, STMicroelectronics, Vishay, and many more.
Benefits of Schottky Diodes
Schottky Diodes are favoured for their fast recovery time, which ultimately results in a small amount of stored charge that can be used for high speed switches. They feature a low turn voltage between 0.15 and 0.45 volts, a higher efficiency, and the integrated guard ring protects the internal components from stress, keeping them running smoothly for longer. The low junction capacitance occupies a small space, after the results given from the wire point contact the silicon, the capacitance levels are also very small.
Industrial Applications of Schottky Diodes
Schottky Diodes have multiple uses across a range of electronic and electrical industries due to their sensitivity and efficiency. Their unique characteristics make them ideal for several industrial applications.
- Voltage Clamping: Schottky diodes are used for voltage clamping in various electronic circuits to prevent voltage spikes and protect sensitive components from damage.
- Transistor Saturation Prevention: They help prevent transistor saturation in high-speed switching applications, ensuring efficient and reliable operation.
- Rectifiers in Power Supplies: Schottky diodes are commonly used as rectifier diodes in power supplies, converting AC to DC with high efficiency and low power loss.
- Solar Panels and Grid-Connected Systems: In solar applications, Schottky diodes prevent high-performing solar cells from discharging over low-performing cells and stop batteries from discharging at night, ensuring optimal performance and longevity.
- RF Applications: Their fast switching speed makes them suitable for RF applications, where they help in signal detection and mixing.
What is a Rectifier Diode?
A rectifier diode's main purpose is to rectify alternating currents. It's used to flow a current through a circuit in one direction, in contrast to elements such as resistors, and a rectifier's current has a non-linear relationship to the voltage across it. The diode will be forward bias when positive voltage is being applied and will do its best to operate as a short circuit and allow the current to flow through the diode freely. Its main task is to convert an alternating current (AC) into a direct current (DC) through the application of rectifier bridges. A rectifier diode can sometimes be used as a Schottky Rectifier.
How to Choose the Right Schottky or Rectifier Diode for Your Needs
Looking to buy a schottky diode or rectifier diode**?** Consider the following factors:
- Voltage and Current Ratings: Ensure the rectifier diode or barrier diode can handle your circuit’s voltage and current requirements.
- Switching Speed: For high-speed applications, select a Schottky diode due to its fast switching capabilities.
- Efficiency: Look for low forward voltage drop for higher efficiency, particularly in power supply applications.
- Application Type: Choose a Schottky diode rectifier for rectification tasks and a Schottky barrier rectifier for improved efficiency and performance.
- Cost: Consider the price of the Schottky diode and select a reliable supplier.
Buying Schottky Diodes and Rectifiers : Ordering & Delivery
RS is a trusted supplier and distributor of Schottky diodes and rectifiers in Australia. Buy Schottkky diodes at a great price from leading brands such as DiodesZetext, IXYS, Infineon, and more. To place an order online, simply browse our extensive catalogue, filter your preferred products based on our extensive specifications, and add to your cart.
RS Group offers fast delivery of Schottkky diodes. For more details on delivery services and fees, please refer to our Delivery Page.