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1N4748AP/TR8
Product Overview
Category:
The 1N4748AP/TR8 belongs to the category of Zener diodes.
Use:
It is commonly used for voltage regulation and voltage reference applications.
Characteristics:
- Zener voltage: 22V
- Power dissipation: 1.0W
- Package type: DO-41
- Operating temperature range: -65°C to +200°C
- Tolerance: ±5%
Package:
The 1N4748AP/TR8 is typically available in a DO-41 package.
Essence:
This Zener diode is designed to provide a stable reference voltage across a wide range of operating conditions.
Packaging/Quantity:
The 1N4748AP/TR8 is usually packaged in reels with a quantity of 3000 units per reel.
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 1N4748AP/TR8 Zener diode has two pins, anode (A) and cathode (K), which are identified by the polarity marking on the device.
Functional Features
- Precise voltage regulation
- Low reverse leakage current
- High reliability and stability
- Wide operating temperature range
Advantages
- Provides stable voltage reference
- Suitable for voltage regulation in various electronic circuits
- Wide operating temperature range allows for versatile applications
Disadvantages
- Limited power dissipation capability compared to higher wattage diodes
- Tolerance of ±5% may not be suitable for highly precise applications
Working Principles
The 1N4748AP/TR8 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 1N4748AP/TR8 is widely used in: - Voltage regulators - Voltage references - Overvoltage protection circuits - Signal clamping circuits - Power supplies
Detailed and Complete Alternative Models
Some alternative models to the 1N4748AP/TR8 include: - 1N4730A: 3.9V Zener diode - 1N4733A: 5.1V Zener diode - 1N4742A: 12V Zener diode - 1N4746A: 18V Zener diode
In conclusion, the 1N4748AP/TR8 Zener diode offers precise voltage regulation and reference capabilities, making it suitable for a wide range of electronic applications. Its stable characteristics and wide operating temperature range make it a popular choice for engineers designing circuits requiring accurate voltage control.
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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de 1N4748AP/TR8 en soluciones técnicas
What is the 1N4748AP/TR8?
- The 1N4748AP/TR8 is a Zener diode with a voltage rating of 22V and a power rating of 1W.
What are the typical applications of the 1N4748AP/TR8?
- It is commonly used in voltage regulation, voltage reference, and overvoltage protection circuits.
What is the maximum current that can flow through the 1N4748AP/TR8?
- The maximum current for reliable operation is typically around 40-50 mA.
How does the 1N4748AP/TR8 provide voltage regulation?
- The Zener diode conducts in the reverse-biased direction when the voltage across it exceeds its breakdown voltage, effectively regulating the voltage.
Can the 1N4748AP/TR8 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 1N4748AP/TR8 in a design?
- Key specifications include the breakdown voltage, power dissipation, and maximum current.
Are there any temperature considerations when using the 1N4748AP/TR8?
- Yes, the temperature coefficient of the Zener voltage should be taken into account for accurate performance across temperature variations.
Can multiple 1N4748AP/TR8 diodes be connected in series or parallel?
- Yes, they can be connected in series to achieve higher breakdown voltages or in parallel to share current.
What are the potential failure modes of the 1N4748AP/TR8?
- Common failure modes include exceeding the maximum power dissipation, overcurrent conditions, and thermal runaway.
Are there any alternatives to the 1N4748AP/TR8 for similar applications?
- Yes, other Zener diodes with comparable voltage and power ratings can be considered as alternatives.