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BAS21-HE3-18
Product Overview
Category
BAS21-HE3-18 belongs to the category of small signal diodes.
Use
It is commonly used in applications such as general-purpose switching and amplification.
Characteristics
The BAS21-HE3-18 diode is known for its high-speed switching capability, low leakage current, and low forward voltage drop.
Package
This diode is typically available in a SOT-23 package.
Essence
The essence of BAS21-HE3-18 lies in its ability to efficiently control the flow of electric current in electronic circuits.
Packaging/Quantity
It is usually packaged in reels with quantities varying based on manufacturer specifications.
Specifications
- Maximum Continuous Forward Current: 200 mA
- Reverse Voltage: 250 V
- Forward Voltage Drop: 1 V
- Reverse Recovery Time: 4 ns
- Operating Temperature Range: -65°C to +150°C
Detailed Pin Configuration
The BAS21-HE3-18 diode has three pins: anode, cathode, and the base terminal. The anode is connected to the positive side of the circuit, the cathode to the negative side, and the base terminal controls the flow of current.
Functional Features
- High-speed switching
- Low forward voltage drop
- Low leakage current
- Small form factor
Advantages
- Efficient control of electric current
- Suitable for general-purpose switching and amplification
- Compact size for space-constrained applications
Disadvantages
- Limited maximum continuous forward current compared to other diodes
- Relatively higher reverse recovery time
Working Principles
BAS21-HE3-18 operates based on the principles of semiconductor physics, where the flow of electric current is controlled by the movement of charge carriers within the diode's structure.
Detailed Application Field Plans
General-Purpose Switching
The diode can be used in various electronic circuits for switching applications due to its high-speed switching capability.
Amplification
In audio and radio frequency circuits, BAS21-HE3-18 can be utilized for signal amplification purposes.
Voltage Regulation
It can also be employed in voltage regulation circuits to control the flow of current in specific directions.
Detailed and Complete Alternative Models
- 1N4148: A widely used general-purpose switching diode with similar characteristics.
- 1N5819: A Schottky diode suitable for high-frequency applications.
In conclusion, BAS21-HE3-18 is a small signal diode with high-speed switching capabilities, making it suitable for various applications in electronics. While it has certain limitations, its compact size and efficient current control make it a valuable component in electronic circuits.
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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací BAS21-HE3-18 v technických řešeních
What is BAS21-HE3-18?
- BAS21-HE3-18 is a high-speed switching diode with a maximum repetitive reverse voltage of 250V and a forward continuous current of 200mA.
What are the typical applications of BAS21-HE3-18?
- BAS21-HE3-18 is commonly used in high-speed switching applications, such as in rectification, freewheeling, and polarity protection circuits.
What are the key electrical characteristics of BAS21-HE3-18?
- The key electrical characteristics include a forward voltage drop of around 1V at 100mA, a reverse leakage current of less than 5µA at 250V, and a reverse recovery time of around 4ns.
Can BAS21-HE3-18 be used in low-power applications?
- Yes, BAS21-HE3-18 can be used in low-power applications due to its low forward voltage drop and low reverse leakage current.
Is BAS21-HE3-18 suitable for high-frequency applications?
- Yes, BAS21-HE3-18 is suitable for high-frequency applications due to its fast reverse recovery time and high-speed switching capabilities.
What are the temperature considerations for BAS21-HE3-18?
- BAS21-HE3-18 has an operating temperature range of -65°C to +175°C, making it suitable for a wide range of environmental conditions.
Does BAS21-HE3-18 require any special handling during assembly?
- BAS21-HE3-18 should be handled using standard ESD (electrostatic discharge) precautions to prevent damage during assembly.
Are there any recommended alternative diodes to BAS21-HE3-18?
- Some recommended alternatives to BAS21-HE3-18 include 1N4148, 1N914, and BAT54S, depending on specific application requirements.
What are the packaging options available for BAS21-HE3-18?
- BAS21-HE3-18 is available in various surface mount and through-hole package options, including SOD-123, SOD-323, and SOD-523.
Where can I find detailed technical specifications and application notes for BAS21-HE3-18?
- Detailed technical specifications and application notes for BAS21-HE3-18 can be found in the product datasheet provided by the manufacturer or distributor.