1N5822

The 1N5822 is a popular Schottky barrier rectifier diode, widely used in various electronic applications due to its efficiency and reliability. Here’s a detailed description of the 1N5822:

General Characteristics:

• Type: Schottky Diode
• Part Number: 1N5822
• Manufacturer: TF (or other manufacturers, as it is a standard part)

Physical Appearance:

• Package Type: Typically available in a DO-41 package, which is a cylindrical glass package with two leads extending from the base.
• Dimensions: The diode is usually about 3.2 mm in diameter and 6.5 mm in length, with leads that are approximately 0.5 mm in diameter.
• Markings: The diode may have a marking on the body indicating the part number (1N5822) and the manufacturer's logo. The cathode side is often marked with a band or stripe.

Electrical Specifications:

• Maximum Reverse Voltage (VR): The 1N5822 can handle a maximum reverse voltage of 40 volts, making it suitable for various low to moderate voltage applications.
• Forward Current (IF): It has a maximum forward current rating of 3.0 amperes, allowing it to conduct significant current in forward bias.
• Forward Voltage Drop (VF): The typical forward voltage drop is around 0.45 to 0.55 volts at a forward current of 3A, which is lower than that of standard silicon diodes, contributing to its efficiency.
• Reverse Recovery Time (trr): The 1N5822 features a very fast reverse recovery time, typically in the range of 25 nanoseconds, which is advantageous in high-frequency applications.

Thermal Characteristics:

• Operating Temperature Range: The diode can operate in a temperature range from -55°C to +125°C, making it suitable for various environmental conditions.
• Junction Temperature (TJ): The maximum junction temperature is typically around 150°C, allowing for reliable operation under high thermal stress.

Applications:

The 1N5822 is commonly used in:

• Power supply circuits for rectification.
• Freewheeling diodes in inductive loads.
• Solar panel applications for blocking and rectification.
• Battery charging circuits.
• DC-DC converters and switch-mode power supplies.

Advantages:

• Low Forward Voltage Drop: This characteristic leads to higher efficiency and reduced heat generation.
• Fast Switching Speed: The quick response time makes it ideal for high-frequency applications.
• High Reliability: The Schottky design provides robustness in various operating conditions.

Conclusion:

The 1N5822 from TF is a versatile and efficient Schottky diode that is well-suited for a wide range of electronic applications. Its combination of low forward voltage drop, high current capacity, and fast switching capabilities make it a preferred choice for engineers and designers in the field of electronics.