1N4757A TR
Product Overview
Category
The 1N4757A TR belongs to the category of Zener diodes.
Use
It is commonly used for voltage regulation and protection in electronic circuits.
Characteristics
- Zener voltage: 43V
- Power dissipation: 1.3W
- Package type: DO-41
- Operating temperature range: -65°C to +200°C
- Storage temperature range: -65°C to +200°C
Package
The 1N4757A TR is typically available in a DO-41 package.
Packaging/Quantity
It is often supplied in reels or tubes, with quantities varying based on manufacturer specifications.
Specifications
- Zener voltage: 43V
- Power dissipation: 1.3W
- Maximum forward voltage: 1.1V
- Reverse current: 5μA
- Temperature coefficient: 0.05%/°C
Detailed Pin Configuration
The 1N4757A TR typically has two pins, with the anode connected to the positive side and the cathode connected to the negative side of the circuit.
Functional Features
- Voltage regulation: The 1N4757A TR maintains a constant voltage across its terminals, making it suitable for stabilizing power supplies.
- Overvoltage protection: It can protect sensitive components in a circuit by limiting the voltage across them.
Advantages
- Precise voltage regulation
- Compact size
- Wide operating temperature range
Disadvantages
- Limited power dissipation capability
- Sensitivity to temperature variations
Working Principles
The 1N4757A TR operates based on the Zener effect, where it maintains a nearly constant voltage drop across its terminals when reverse-biased at or above its breakdown voltage.
Detailed Application Field Plans
The 1N4757A TR is widely used in various applications such as: - Voltage regulators - Overvoltage protection circuits - Signal clamping circuits - Voltage references
Detailed and Complete Alternative Models
Some alternative models to the 1N4757A TR include: - 1N4728A TR (Zener voltage: 3.3V) - 1N4733A TR (Zener voltage: 5.1V) - 1N4742A TR (Zener voltage: 12V)
This provides a range of options for different voltage regulation requirements.
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What is the 1N4757A TR?
- The 1N4757A TR is a Zener diode with a voltage rating of 43 volts and a power rating of 1 watt.
What are the typical applications of the 1N4757A TR?
- It is commonly used in voltage regulation, voltage reference, and overvoltage protection circuits.
What is the maximum current that can flow through the 1N4757A TR?
- The maximum current for reliable operation is typically around 40 mA.
How does the 1N4757A TR provide voltage regulation?
- The Zener diode conducts in the reverse-biased direction when the voltage across it reaches its breakdown voltage, effectively regulating the voltage across the circuit.
Can the 1N4757A TR be used for overvoltage protection?
- Yes, it can be used to shunt excess voltage away from sensitive components in a circuit, protecting them from damage.
What are the key specifications to consider when using the 1N4757A TR in a design?
- Key specifications include the breakdown voltage, power dissipation, and maximum current.
Is the 1N4757A TR suitable for low-power applications?
- Yes, it is suitable for low-power applications due to its 1 watt power rating.
What are the temperature considerations for the 1N4757A TR?
- The operating and storage temperatures should be within the specified range to ensure proper performance and reliability.
Can multiple 1N4757A TR diodes be connected in series or parallel?
- Yes, they can be connected in series to increase the breakdown voltage or in parallel to share the current load.
Are there any common failure modes or issues associated with the 1N4757A TR?
- Common issues include exceeding the maximum power dissipation, exceeding the maximum current, or operating outside of the specified temperature range.