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1N4743A-T
Product Overview
Category
The 1N4743A-T belongs to the category of Zener diodes.
Use
It is commonly used for voltage regulation and voltage reference applications.
Characteristics
- Zener voltage: 13V
- Power dissipation: 1.0W
- Package type: Axial leaded
- Operating temperature range: -65°C to +200°C
- Tolerance: ±5%
Package
The 1N4743A-T is available in a DO-41 axial package.
Packaging/Quantity
It is typically available in reels or bulk packaging, with quantities varying based on supplier and customer requirements.
Specifications
- Zener voltage: 13V
- Power dissipation: 1.0W
- Maximum forward voltage: 1.2V
- Reverse current: 5μA
- Temperature coefficient: 5mV/°C
Detailed Pin Configuration
The 1N4743A-T has two pins, with the cathode being shorter than the anode. The pinout configuration is as follows: - Pin 1 (Anode) - Pin 2 (Cathode)
Functional Features
The 1N4743A-T operates as a voltage regulator by maintaining a constant output voltage across its terminals, even when there are variations in input voltage or load conditions.
Advantages and Disadvantages
Advantages
- Precise voltage regulation
- Compact size
- Wide operating temperature range
Disadvantages
- Limited power dissipation capability
- Sensitive to temperature fluctuations
Working Principles
The 1N4743A-T operates based on the Zener effect, where it maintains a nearly constant voltage across its terminals when reverse-biased at its specified breakdown voltage.
Detailed Application Field Plans
The 1N4743A-T is widely used in various electronic circuits such as: - Voltage regulators - Overvoltage protection circuits - Voltage reference circuits
Detailed and Complete Alternative Models
Some alternative models to the 1N4743A-T include: - 1N4733A-T (5.1V Zener voltage) - 1N4750A-T (27V Zener voltage) - BZX55C13 (13V Zener voltage)
In conclusion, the 1N4743A-T Zener diode serves as a crucial component in electronic circuits requiring precise voltage regulation and reference. Its compact size, wide operating temperature range, and functional features make it a popular choice for various applications.
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What is the 1N4743A-T diode used for?
- The 1N4743A-T is a Zener diode commonly used for voltage regulation and protection in electronic circuits.
What is the maximum power dissipation of the 1N4743A-T?
- The maximum power dissipation of the 1N4743A-T is 1.0 watt.
What is the voltage rating of the 1N4743A-T?
- The 1N4743A-T has a nominal voltage rating of 13 volts.
How does the 1N4743A-T function as a voltage regulator?
- The 1N4743A-T operates in reverse-biased breakdown mode, maintaining a nearly constant voltage across its terminals when properly biased.
What are the typical applications of the 1N4743A-T?
- Typical applications include voltage regulation, overvoltage protection, and voltage reference circuits.
What is the maximum forward voltage drop of the 1N4743A-T?
- The maximum forward voltage drop of the 1N4743A-T is 1.2 volts at a forward current of 28 mA.
What is the temperature coefficient of the 1N4743A-T?
- The temperature coefficient is typically around 5 mV/°C, indicating a relatively stable voltage reference over a range of temperatures.
Can the 1N4743A-T be used in automotive applications?
- Yes, the 1N4743A-T can be used in automotive electronics for voltage regulation and transient protection.
What is the reverse leakage current of the 1N4743A-T?
- The reverse leakage current is typically very low, on the order of microamps, ensuring minimal impact on circuit performance.
Is the 1N4743A-T suitable for high-frequency applications?
- While the 1N4743A-T can function at moderate frequencies, it may not be ideal for high-speed or RF applications due to its inherent capacitance and response time.