1N4738 G - English Editing Encyclopedia Entry
Product Overview
Category:
The 1N4738 G is a semiconductor diode belonging to the Zener diode category.
Use:
It is commonly used for voltage regulation and stabilization in electronic circuits.
Characteristics:
- Zener voltage: 8.2V
- Power dissipation: 1.3W
- Package type: DO-41
- Operating temperature range: -65°C to +200°C
Packaging/Quantity:
The 1N4738 G is typically available in bulk packaging with quantities ranging from hundreds to thousands per reel or box.
Specifications
- Zener voltage: 8.2V
- Power dissipation: 1.3W
- Maximum forward voltage: 1.1V
- Reverse current: 5μA
- Temperature coefficient: 0.05%/°C
Detailed Pin Configuration
The 1N4738 G Zener diode has two pins, anode, and cathode, with the cathode being marked by a band on the body of the diode.
Functional Features
The 1N4738 G Zener diode operates as a voltage regulator, maintaining a constant output voltage across its terminals when reverse biased.
Advantages and Disadvantages
Advantages
- Precise voltage regulation
- Compact size
- Wide operating temperature range
Disadvantages
- Limited power dissipation capability
- Sensitivity to temperature variations
Working Principles
When the 1N4738 G Zener diode is reverse biased and the voltage across it reaches the Zener voltage of 8.2V, it begins to conduct, effectively regulating the voltage across its terminals.
Detailed Application Field Plans
The 1N4738 G Zener diode finds applications in various electronic circuits such as voltage regulators, overvoltage protection, and signal clamping circuits.
Detailed and Complete Alternative Models
Some alternative models to the 1N4738 G Zener diode include: - 1N4739 (9.1V Zener voltage) - 1N4740 (10V Zener voltage) - BZX55C8V2 (8.2V Zener voltage)
In conclusion, the 1N4738 G Zener diode is a crucial component in electronic circuits requiring precise voltage regulation and stabilization, offering a compact solution with a wide operating temperature range.
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What is 1N4738 G?
- 1N4738 G is a semiconductor diode, specifically a Zener diode, with a voltage rating of 8.2 volts.
What are the typical applications of 1N4738 G?
- It is commonly used in voltage regulation, voltage reference, and overvoltage protection circuits.
How does 1N4738 G work as a voltage regulator?
- When operated in reverse-bias breakdown, it maintains a nearly constant voltage across its terminals, providing stable voltage regulation.
What is the maximum power dissipation of 1N4738 G?
- The maximum power dissipation is typically around 1.3 watts.
What are the key characteristics of 1N4738 G?
- Its key characteristics include a sharp breakdown voltage, low dynamic impedance, and good stability over a wide range of operating conditions.
Can 1N4738 G be used for precision voltage references?
- Yes, it can be used as a simple and cost-effective voltage reference in various electronic circuits.
What precautions should be taken when using 1N4738 G in a circuit?
- It is important to ensure that the maximum current and power ratings are not exceeded, and proper heat sinking may be required for high-power applications.
Is 1N4738 G suitable for automotive electronics applications?
- Yes, it can be used in automotive electronics for voltage regulation and protection against voltage spikes.
What are the alternatives to 1N4738 G for similar applications?
- Other Zener diodes with different breakdown voltages can be considered based on specific application requirements.
Where can I find detailed specifications and application notes for 1N4738 G?
- Detailed specifications and application notes can be found in the datasheet provided by the manufacturer or from reputable electronics component distributors.