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1N4748A TR
Product Overview
Category
The 1N4748A TR 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
- Storage temperature range: -65°C to +200°C
Packaging/Quantity
The 1N4748A TR is typically available in tape and reel packaging with a quantity of 2500 units per reel.
Specifications
- Zener voltage: 22V
- Maximum reverse current: 5μA
- Maximum regulator current: 76mA
- Power dissipation: 1.0W
- Forward voltage: 1.2V
- Reverse voltage: 22V
- Temperature coefficient: 0.05%/°C
Detailed Pin Configuration
The 1N4748A TR has two pins, anode, and cathode. The anode is connected to the positive side of the circuit, while the cathode is connected to the negative side.
Functional Features
- Precise voltage regulation
- Low impedance
- High reliability
- Fast response time
Advantages and Disadvantages
Advantages
- Accurate voltage regulation
- Wide operating temperature range
- Compact package size
Disadvantages
- Limited power dissipation capability
- Sensitive to temperature variations
Working Principles
The 1N4748A TR operates based on the Zener effect, which allows it to maintain a constant voltage across its terminals when it is operated in the reverse breakdown region.
Detailed Application Field Plans
The 1N4748A TR is widely used in various electronic circuits such as: - Voltage regulators - Overvoltage protection circuits - Signal clamping circuits - Voltage reference circuits
Detailed and Complete Alternative Models
Some alternative models to the 1N4748A TR include: - 1N4730A (3.9V) - 1N4731A (4.3V) - 1N4732A (4.7V) - 1N4733A (5.1V) - 1N4734A (5.6V)
In conclusion, the 1N4748A TR Zener diode is a versatile component that finds widespread use in voltage regulation and reference applications due to its precise voltage regulation, compact package, and wide operating temperature range.
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What is the 1N4748A TR diode used for?
- The 1N4748A TR diode is commonly used as a voltage regulator in various technical solutions.
What is the maximum voltage rating of the 1N4748A TR diode?
- The maximum voltage rating of the 1N4748A TR diode is 22 volts.
What is the typical current rating of the 1N4748A TR diode?
- The typical current rating of the 1N4748A TR diode is 1 watt.
How does the 1N4748A TR diode regulate voltage?
- The 1N4748A TR diode regulates voltage by maintaining a constant voltage drop across its terminals, regardless of changes in input voltage or load conditions.
Can the 1N4748A TR diode be used in reverse polarity?
- No, the 1N4748A TR diode should not be used in reverse polarity as it may cause damage to the diode.
What are some common applications of the 1N4748A TR diode?
- Common applications of the 1N4748A TR diode include voltage regulation in power supplies, voltage clamping, and overvoltage protection circuits.
Is the 1N4748A TR diode suitable for high-frequency applications?
- The 1N4748A TR diode is not typically recommended for high-frequency applications due to its inherent capacitance and response time.
What is the temperature range for the 1N4748A TR diode?
- The 1N4748A TR diode is designed to operate within a temperature range of -65°C to +200°C.
Can multiple 1N4748A TR diodes be connected in series or parallel?
- Multiple 1N4748A TR diodes can be connected in series to increase the breakdown voltage, but connecting them in parallel is not recommended due to current imbalance issues.
Are there any special considerations for soldering the 1N4748A TR diode?
- When soldering the 1N4748A TR diode, it is important to observe proper soldering techniques to prevent thermal damage to the diode, such as using a low-temperature soldering iron and minimizing the soldering time.