1N4748A-TAP
Product Overview
Category
The 1N4748A-TAP belongs to the category of Zener diodes.
Use
It is commonly used for voltage regulation and protection in electronic circuits.
Characteristics
- Zener voltage: 22V
- Power dissipation: 1.0W
- Package type: Axial leaded
- Operating temperature range: -65°C to +200°C
- Storage temperature range: -65°C to +200°C
Package
The 1N4748A-TAP is typically available in a DO-41 package.
Essence
This Zener diode is designed to provide a stable voltage reference and protect sensitive components from voltage spikes.
Packaging/Quantity
It is usually packaged in reels or tubes, with quantities varying based on manufacturer specifications.
Specifications
- Zener voltage: 22V
- Power dissipation: 1.0W
- Maximum forward voltage: 1.2V
- Reverse current: 5μA
- Temperature coefficient: 0.05%/°C
Detailed Pin Configuration
The 1N4748A-TAP has two leads, with the anode connected to the positive terminal and the cathode connected to the negative terminal.
Functional Features
- Voltage regulation: Maintains a constant output voltage under varying input conditions.
- Overvoltage protection: Safeguards sensitive components by diverting excess voltage.
Advantages
- Precise voltage regulation
- Compact size
- Wide operating temperature range
Disadvantages
- Limited power dissipation capability
- Susceptible to thermal runaway if not properly heatsinked
Working Principles
The 1N4748A-TAP operates based on the Zener effect, where it maintains a nearly constant voltage across its terminals when reverse-biased.
Detailed Application Field Plans
The 1N4748A-TAP is widely used in: - Voltage regulators - Power supplies - Overvoltage protection circuits
Detailed and Complete Alternative Models
Some alternative models to the 1N4748A-TAP include: - 1N4733A-TAP (5.1V Zener voltage) - 1N4742A-TAP (12V Zener voltage) - 1N4749A-TAP (24V Zener voltage)
In conclusion, the 1N4748A-TAP Zener diode is a crucial component in electronic circuits, providing stable voltage references and protection against overvoltage conditions. Its precise characteristics and functional features make it suitable for various applications in the field of electronics.
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Liste 10 almindelige spørgsmål og svar relateret til anvendelsen af 1N4748A-TAP i tekniske løsninger
What is the 1N4748A-TAP?
- The 1N4748A-TAP is a Zener diode with a voltage rating of 22V and a power rating of 1W.
What are the typical applications of the 1N4748A-TAP?
- It is commonly used in voltage regulation, voltage reference, and overvoltage protection circuits.
What is the maximum current that can flow through the 1N4748A-TAP?
- The maximum current for reliable operation is typically around 40-50 mA.
How does the 1N4748A-TAP provide voltage regulation?
- It operates in the reverse-biased breakdown region, maintaining a nearly constant voltage across its terminals.
Can the 1N4748A-TAP be used for overvoltage protection?
- Yes, it can be used to clamp the voltage at a specific level, protecting sensitive components from overvoltage conditions.
What are the key specifications to consider when using the 1N4748A-TAP in a circuit?
- Voltage rating, power dissipation, and maximum current are crucial specifications to consider.
Are there any temperature considerations when using the 1N4748A-TAP?
- Yes, the temperature coefficient of the Zener voltage should be taken into account for accurate performance across temperature variations.
Can multiple 1N4748A-TAP diodes be connected in series or parallel?
- Yes, they can be connected in series to increase the total breakdown voltage or in parallel to share the current load.
What are the typical failure modes of the 1N4748A-TAP?
- Common failure modes include excessive current causing overheating and exceeding the power dissipation limit.
Are there any alternatives to the 1N4748A-TAP for similar applications?
- Yes, other Zener diodes with comparable voltage and power ratings can be considered as alternatives, such as the 1N4748A or 1N4748.