1n5822: A detailed look at Schottky diodes pinout, specs, datasheets, PDFs.

What is the 1N5822

The 1N5822 is a Schottky diode, which is widely used as a basic and essential component for rectification, protection, and switching of circuits. Because of its low forward voltage and high efficiency, it is the first choice in power supplies, inverters and other high-efficiency circuits. 1N5822 PINS There are two of them, anode and cathode, with relatively simple pinouts.

1N5822 PINS

The 1N5822 diode has two pins, anode and cathode, whose pinouts are common in DO-41 packages.

• Pin 1: Anode The anode is the positive terminal of the diode and the pin identifier is usually the power wire connected to the load in the circuit. Under forward bias, a current flow develops between the anode and cathode. The anode is usually connected to an input current source for current flow into the diode.



• Pin 2: cathode The cathode is the negative terminal of the diode and is usually grounded or connected to the negative end of the power supply circuit. When current flows through the anode to the cathode, the diode controls the flow of current according to its characteristics to avoid reverse current.

1N5822 Specifications

1N5822 PACKAGE MECHANICAL DATA

The 1N5822 is typically available in the DO-41 package, which is common in both surface mount technology (SMD) and traditional leaded packages.The DO-41 package has two pins and is small enough to take up less space in electronic circuits. The DO-41 package has two pins and is small enough to take up less space in an electronic circuit.

1N5822 Characteristics

1. Low Forward Voltage Drop

   • Features: The 1N5822's forward voltage drop is typically between 0.45V and 0.5V, which is much lower than that of standard silicon diodes, which are typically 0.7V.
   • Advantage: Lower forward voltage drop means less heat is generated as current flows through the diode, which improves the overall efficiency of the circuit, especially in low-voltage and high-current applications such as power supply rectifiers and inverters.

2. Fast Switching Times for High Performance

   • Features: The 1N5822 has a very short reverse recovery time (reverse recovery time is typically less than 100 nanoseconds).
   • Benefits: This fast switching characteristic makes it ideal for use in high-frequency switching power supplies (SMPS) and other circuits that require fast switching with reduced switching losses.

3. Lower Reverse Leakage Current

   • Feature: The 1N5822 has a very low reverse current (typically a few microamps at maximum operating voltage).
   • Benefits: The low reverse current helps reduce power consumption and prevents unwanted current flow in circuits, especially important in power protection circuits.

4. Suitable for higher operating temperatures

   • Feature: The 1N5822 is stable over the -40°C to +125°C temperature range.
   • Benefits: This makes the 1N5822 suitable for use in a variety of harsh environments, especially automotive electronics, industrial controls, and high-temperature applications.

5. Moderate Reverse Voltage Rating

   • Features: The 1N5822 has a maximum reverse operating voltage of 40V.
   • Advantage: For low to medium voltage applications, the 1N5822 provides sufficient reverse voltage protection to operate reliably in most low voltage DC power supplies and battery circuits.

6. Schottky Diode Features

   • Characteristics: The 1N5822 utilizes a Schottky structure with an internal metal-semiconductor junction that is different from the PN junction of a common silicon diode.
   • Advantage: The main advantage of Schottky diodes is their low forward voltage drop and fast reverse recovery time, which gives them a distinct advantage in high-efficiency power supply designs.

7. Low power consumption and high efficiency

   • Features: Due to its low forward voltage drop and high efficiency, the 1N5822 can significantly reduce power consumption in applications such as power conversion, battery-powered equipment and inverters.
   • Advantage: Suitable for applications requiring high power efficiency, reducing battery or power supply losses and extending the operating time of equipment.

8. Standard Package (DO-41)

   • Features: Typically available in a DO-41 package, the 1N5822 is a general-purpose, compact package type suitable for hand soldering and automated production.
   • Advantage: This package form is easy to use in a variety of electronic circuits, and its simple structure provides good heat dissipation.

9. Low Noise Characteristics

   • Features: The Schottky structure of the 1N5822 helps to minimize noise generated during the switching process.
   • Advantage: The 1N5822 is a good choice in sensitive applications that require low noise, such as audio circuits or communication equipment.

1N5822 Application Scenarios

1. Power Supply Rectification

   • Switching Power Supplies (SMPS): In switching power supplies, the 1N5822 can be used as a rectifier diode to help convert alternating current (AC) to direct current (DC). It is especially suited for high-frequency switching power supplies because of its low forward voltage drop and fast recovery time.
   • Low-voltage power adapters: provide stable power for mobile devices or other low-power electronics.

2. Battery Chargers

   • Li-ion battery charger: In portable devices, the 1N5822 can be used as a rectifier diode in the charging circuit to ensure that the current is in the right direction during battery charging while reducing power loss.
   • Solar Battery Charger: Used to rectify the current generated by solar panels to the battery for energy storage, especially in small solar systems.

3. Inverter

   • Solar Inverter: Converts the DC current in a solar system to AC current and supplies it to the grid or for use in household and industrial appliances.
   • Uninterruptible Power Supply (UPS): Provides stable power to computers and other electronic devices, especially during grid power outages. The inverter converts energy through the efficient rectification of the 1N5822.

4. Current Protection Circuit

   • Battery Protection Circuit: 1N5822 is often used as a reverse current protection diode in battery protection circuits to prevent reverse charging of batteries in case of incorrect connection and to ensure the safe operation of batteries.
   • Reverse Current Protection: The 1N5822 protects other components in the circuit from damage when the external power supply or battery is reversed.

5. Rectification and Protection in Power Supply Systems

   • Vehicle power supply: In the power supply system of automobile and motorcycle, 1N5822 is used to rectify the DC power generated by the vehicle to ensure the stable operation of the battery and electrical equipment.
   • High-frequency switching power supply: 1N5822 is especially suitable for high-frequency switching power supply (such as computer power supply, LED driver power supply, etc.), because it can maintain low voltage drop and high efficiency during fast switching.

6. Applications in High Frequency Circuits

   • RF circuits: The 1N5822 can be used in radio frequency (RF) circuits, especially those applications that are sensitive to reverse recovery time, such as frequency rectification and protection circuits in wireless communication systems.
   • Digital Circuits: The 1N5822 is used in high-speed digital circuits, especially in switched-mode power supplies (SMPS), to ensure circuit efficiency and reduce energy waste.

7. LED Driver Circuits

   • LED Lighting Power Supplies: In LED lighting and backlighting power supplies, the 1N5822 is used for rectification and current control to ensure stable brightness and extended life of LEDs.
   • LCD Display Backlight Driver Circuit: Used to efficiently drive display backlight sources, maintain efficient current control and reduce heat generation.

8. Circuit Protection and Overvoltage Protection

   • Voltage Transient Protection: Used to protect circuits from voltage spikes or surges, especially at the power input.
   • Reverse Voltage Protection: In mains or battery powered equipment, the 1N5822 protects circuit components from damage when the external power supply is incorrectly connected.

1N5822 Suppliers

• ST Microelectronics: ST Microelectronics is a leading global semiconductor manufacturer offering a broad range of electronic components and solutions covering consumer electronics, automotive and industrial applications.
• Arrow: Arrow is a globally recognized distributor of electronic components, offering a wide range of semiconductors, embedded systems and industrial products.
• Future: Future Electronics is a global distributor of electronic components focused on providing customized electronic solutions to its customers.
• Digi-Key: Digi-Key is a leading electronic component distributor offering a wide range of electronic assemblies and prototyping support with global online shopping support.
• Mouser: Mouser is a global distributor of electronic components, specializing in innovative electronic assemblies and development tools serving design engineers and manufacturers.
• Rochester: Rochester Electronics provides full-service electronic component distribution, specializing in long-term supply support and solutions for obsolete components.
• Verical: Verical is a specialized electronic component distribution platform offering worldwide inventory, procurement and supply chain management services.

1N5822 Price

The price of 1N5822 varies widely, the cheapest one is Verical, the price is only $0.085.

1N5822 Alternative

1N5822 Datasheet PDF

Download datasheets and manufacturer documentation for 1N5822.

• ST Microelectronics：1N5822 Datasheet PDF Download For ST Microelectronics
• MDD：1N5822 Datasheet PDF Download For MDD
• Fairchild：1N5822 Datasheet PDF Download For Fairchild
• Taiwan Semiconductor：1N5822 Datasheet PDF Download For Taiwan Semiconductor