1N4748AHR1G
Product Overview
Category
The 1N4748AHR1G 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: 1.3W
- Package type: DO-41
- Operating temperature range: -65°C to +175°C
Packaging/Quantity
The 1N4748AHR1G is typically available in reels or tubes with varying quantities, such as 500 or 1000 pieces per reel.
Specifications
- Zener voltage: 22V
- Power dissipation: 1.3W
- Maximum forward voltage: 1.2V
- Reverse current: 5μA
- Temperature coefficient: 0.05%/°C
Detailed Pin Configuration
The 1N4748AHR1G has two pins, anode, and cathode, which are denoted by the standard pinout for DO-41 package.
Functional Features
The 1N4748AHR1G provides a stable voltage output when operated in its reverse breakdown region, making it suitable for voltage regulation and reference applications.
Advantages and Disadvantages
Advantages
- Precise voltage regulation
- High power dissipation capability
- Wide operating temperature range
Disadvantages
- Limited voltage options compared to other Zener diodes
- Sensitive to temperature variations
Working Principles
When the 1N4748AHR1G is reverse-biased beyond its breakdown voltage, it allows current to flow in the reverse direction, maintaining a nearly constant voltage across its terminals.
Detailed Application Field Plans
The 1N4748AHR1G is widely used in: - Voltage regulators - Voltage references - Overvoltage protection circuits
Detailed and Complete Alternative Models
Some alternative models to the 1N4748AHR1G include: - 1N4738AHR1G (8.2V Zener voltage) - 1N4754AHR1G (30V Zener voltage) - BZX55C22 (22V Zener voltage)
In conclusion, the 1N4748AHR1G Zener diode offers precise voltage regulation and finds extensive use in various electronic circuits requiring stable voltage references.
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What is the 1N4748AHR1G diode used for?
- The 1N4748AHR1G is a Zener diode commonly used for voltage regulation and protection in electronic circuits.
What is the maximum power dissipation of the 1N4748AHR1G?
- The maximum power dissipation of the 1N4748AHR1G is 1.3 watts.
What is the voltage rating of the 1N4748AHR1G?
- The 1N4748AHR1G has a nominal voltage rating of 22 volts.
How does the 1N4748AHR1G regulate voltage?
- The 1N4748AHR1G regulates voltage by maintaining a constant output voltage across its terminals, even when the input voltage varies.
Can the 1N4748AHR1G be used for overvoltage protection?
- Yes, the 1N4748AHR1G can be used to protect sensitive components from overvoltage conditions by shunting excess voltage to ground.
What are the typical applications of the 1N4748AHR1G?
- Typical applications include voltage regulation in power supplies, overvoltage protection in electronic circuits, and voltage reference in precision instruments.
What is the operating temperature range of the 1N4748AHR1G?
- The 1N4748AHR1G has an operating temperature range of -65°C to +175°C.
Does the 1N4748AHR1G require a heat sink for operation?
- In most low-power applications, the 1N4748AHR1G does not require a heat sink. However, in high-power applications, a heat sink may be necessary to dissipate heat effectively.
Is the 1N4748AHR1G polarity-sensitive?
- Yes, the 1N4748AHR1G is polarity-sensitive, and it must be connected with the correct orientation to function properly.
Can multiple 1N4748AHR1G diodes be connected in series or parallel?
- Multiple 1N4748AHR1G diodes can be connected in series to increase the breakdown voltage or in parallel to increase the current-handling capacity. However, proper consideration of the circuit requirements is essential when doing so.