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1N4749A G - English Editing Encyclopedia Entry
Introduction
The 1N4749A G is a semiconductor diode belonging to the category of Zener diodes. This entry provides an overview of its basic information, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.
Basic Information Overview
- Category: Zener Diode
- Use: Voltage regulation and voltage reference
- Characteristics: Reverse breakdown voltage of 24V, power dissipation of 1.0W, and operating temperature range of -65°C to +200°C
- Package: Axial leaded, DO-41 package
- Essence: Semiconductor diode for voltage regulation
- Packaging/Quantity: Typically available in reels or bulk packaging
Specifications
- Reverse Breakdown Voltage (Vz): 24V
- Power Dissipation (Pd): 1.0W
- Operating Temperature Range: -65°C to +200°C
- Zener Impedance (Zz): 5Ω maximum at IZT
- Maximum Reverse Leakage Current (IR): 5μA at VR
Detailed Pin Configuration
The 1N4749A G has an axial leaded package with two leads. The cathode is denoted by a band on the body of the diode.
Functional Features
- Voltage Regulation: Maintains a constant output voltage under varying load conditions.
- Voltage Reference: Provides a stable voltage reference for circuitry.
Advantages and Disadvantages
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 1N4749A G operates based on the Zener effect, where it maintains a nearly constant voltage across its terminals when reverse biased at or above its breakdown voltage.
Detailed Application Field Plans
The 1N4749A G finds applications in various fields such as: - Voltage regulators in power supplies - Overvoltage protection circuits - Voltage reference sources in instrumentation
Detailed and Complete Alternative Models
Some alternative models to the 1N4749A G include: - 1N4733A G - 1N4742A G - 1N4746A G
In summary, the 1N4749A G is a Zener diode with a reverse breakdown voltage of 24V, suitable for voltage regulation and reference applications. Its compact size and precise voltage regulation make it a popular choice in various electronic circuits.
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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de 1N4749A G en soluciones técnicas
What is the 1N4749A G?
- The 1N4749A G is a 24V, 1W Zener diode commonly used in electronic circuits for voltage regulation and protection.
What are the typical applications of the 1N4749A G?
- It is commonly used in voltage regulator circuits, overvoltage protection circuits, and as a reference voltage source.
What is the maximum power dissipation of the 1N4749A G?
- The maximum power dissipation of the 1N4749A G is 1 watt.
What is the voltage tolerance of the 1N4749A G?
- The voltage tolerance of the 1N4749A G is +/- 5%.
What is the operating temperature range of the 1N4749A G?
- The operating temperature range of the 1N4749A G is -65°C to +200°C.
How do I identify the cathode and anode of the 1N4749A G?
- The cathode of the 1N4749A G is typically marked with a band or a line on the body of the diode.
Can the 1N4749A G be used in reverse-bias mode?
- Yes, the 1N4749A G can be used in reverse-bias mode for certain applications such as voltage clamping.
What is the typical forward voltage drop of the 1N4749A G?
- The typical forward voltage drop of the 1N4749A G is around 1.2V.
Is the 1N4749A G suitable for high-frequency applications?
- The 1N4749A G is not recommended for high-frequency applications due to its inherent capacitance.
Can multiple 1N4749A G diodes be connected in series or parallel?
- Yes, multiple 1N4749A G diodes can be connected in series to increase the breakdown voltage or in parallel to increase the current-handling capacity.