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1N4746AUR
Product Overview
Category
The 1N4746AUR belongs to the category of Zener diodes.
Use
It is commonly used for voltage regulation and voltage reference applications.
Characteristics
- Zener voltage: 18V
- Power dissipation: 1.3W
- Operating temperature range: -65°C to +175°C
Package
The 1N4746AUR is available in a DO-41 package.
Essence
This Zener diode is designed to provide a stable and precise voltage reference.
Packaging/Quantity
It is typically available in reels with a quantity of 3000 units per reel.
Specifications
- Zener voltage: 18V
- Power dissipation: 1.3W
- Forward voltage: 1.2V
- Reverse current: 5μA
- Temperature coefficient: 5mV/°C
Detailed Pin Configuration
The 1N4746AUR has two pins, anode and cathode, with the anode being the positive terminal and the cathode being the negative terminal.
Functional Features
- Precise voltage regulation
- Low reverse leakage current
- High power dissipation capability
Advantages and Disadvantages
Advantages
- Stable voltage reference
- Wide operating temperature range
- High power dissipation
Disadvantages
- Limited voltage options
- Sensitive to temperature variations
Working Principles
The 1N4746AUR operates based on the Zener effect, where it maintains a constant voltage across its terminals when reverse-biased.
Detailed Application Field Plans
Voltage Regulation
The 1N4746AUR can be used in various electronic circuits to regulate voltage and maintain a stable reference voltage.
Overvoltage Protection
It can also be employed in overvoltage protection circuits to prevent damage to sensitive components.
Voltage Reference
In precision instrumentation and measurement equipment, this Zener diode serves as a reliable voltage reference.
Detailed and Complete Alternative Models
Some alternative models to the 1N4746AUR include: - 1N4732A - 1N4739A - BZX55C18
In conclusion, the 1N4746AUR Zener diode offers precise voltage regulation and reference capabilities, making it suitable for a wide range of electronic applications.
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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de 1N4746AUR en soluciones técnicas
What is the 1N4746AUR?
- The 1N4746AUR is a Zener diode with a voltage rating of 18V and a power rating of 1W.
What are the typical applications of the 1N4746AUR?
- It is commonly used in voltage regulation, voltage reference, and overvoltage protection circuits.
What is the maximum current that can flow through the 1N4746AUR?
- The maximum current for reliable operation is typically around 40-50 mA.
How does the 1N4746AUR function in a voltage regulation circuit?
- It maintains a constant output voltage by conducting in the reverse-biased direction when the input voltage exceeds its breakdown voltage.
Can the 1N4746AUR be used for overvoltage protection?
- Yes, it can be used to shunt excess voltage to protect sensitive components in a circuit.
What are the key specifications to consider when using the 1N4746AUR in a design?
- Key specifications include its voltage rating, power dissipation, and maximum current.
Are there any temperature considerations when using the 1N4746AUR?
- Yes, the operating and storage temperature ranges should be taken into account to ensure proper functionality.
Can multiple 1N4746AUR diodes be connected in series or parallel?
- Yes, they can be connected in series to increase the breakdown voltage or in parallel to share the current load.
What are the potential failure modes of the 1N4746AUR?
- Common failure modes include thermal runaway, excessive current, and voltage spikes.
Are there any alternative components that can be used in place of the 1N4746AUR?
- Yes, other Zener diodes with similar voltage and power ratings can be considered as alternatives.