1N2821B Diode

Product Overview

Category:

The 1N2821B diode belongs to the category of semiconductor devices.

Use:

It is commonly used as a rectifier in electronic circuits to convert alternating current (AC) to direct current (DC).

Characteristics:

Forward Voltage: 0.7V
Reverse Voltage: 100V
Current Rating: 1A
Fast Switching Speed

Package:

The 1N2821B diode is typically available in a DO-41 package.

Packaging/Quantity:

It is usually packaged in reels or tubes and is available in quantities of 100 or more.

Specifications

Maximum Average Forward Current: 1A
Peak Repetitive Reverse Voltage: 100V
Forward Voltage Drop: 0.7V
Reverse Recovery Time: 4ns

Detailed Pin Configuration

The 1N2821B diode has two pins, anode, and cathode. The anode is connected to the positive terminal of the circuit, while the cathode is connected to the negative terminal.

Functional Features

The 1N2821B diode acts as a one-way valve for electric current, allowing current to flow in only one direction.

Advantages and Disadvantages

Advantages

Fast switching speed
Low forward voltage drop
High current rating

Disadvantages

Limited reverse voltage rating
Relatively high reverse recovery time

Working Principles

When a positive voltage is applied to the anode with respect to the cathode, the diode allows current to flow. However, when a negative voltage is applied, the diode blocks the current flow.

Detailed Application Field Plans

The 1N2821B diode finds applications in various electronic circuits such as power supplies, battery chargers, and voltage regulators due to its rectification properties.

Detailed and Complete Alternative Models

Some alternative models to the 1N2821B diode include: - 1N4001 - 1N4148 - 1N5408

In conclusion, the 1N2821B diode is a versatile semiconductor device with applications in numerous electronic circuits, offering fast switching speeds and low forward voltage drop. However, it is important to consider its limitations, such as the relatively high reverse recovery time and limited reverse voltage rating when selecting it for specific applications.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací 1N2821B v technických řešeních

What is 1N2821B?
- 1N2821B is a silicon rectifier diode commonly used in electronic circuits for converting alternating current (AC) to direct current (DC).
What are the key specifications of 1N2821B?
- The 1N2821B diode has a maximum repetitive peak reverse voltage of 1000V, a maximum average forward rectified current of 3A, and a forward voltage drop of approximately 1V at 3A.
How is 1N2821B typically used in technical solutions?
- 1N2821B is often used in power supply circuits, battery chargers, and other applications where AC needs to be converted to DC.
What are the important considerations when using 1N2821B in a circuit?
- It's crucial to consider the maximum voltage and current requirements of the circuit, as well as the thermal characteristics of the diode to ensure proper heat dissipation.
Can 1N2821B be used in high-frequency applications?
- No, 1N2821B is not suitable for high-frequency applications due to its relatively slow recovery time.
Are there any alternative diodes that can be used in place of 1N2821B?
- Yes, similar rectifier diodes such as 1N4007 or 1N5408 can be used as alternatives depending on the specific requirements of the circuit.
What are the typical failure modes of 1N2821B?
- Common failure modes include overvoltage breakdown, excessive current causing thermal damage, and mechanical stress leading to physical damage.
How should 1N2821B be handled and stored to maintain its performance?
- The diode should be stored in a cool, dry environment and handled with care to avoid static discharge and physical damage.
Can 1N2821B be used in automotive applications?
- Yes, 1N2821B can be used in certain automotive applications, but it's important to ensure that it meets the necessary automotive industry standards and specifications.
Where can I find detailed application notes and datasheets for 1N2821B?
- Detailed application notes and datasheets for 1N2821B can be found on the websites of semiconductor manufacturers or distributors, providing comprehensive information on its usage and characteristics.