1N4742A R1G
Product Overview
Category
The 1N4742A R1G belongs to the category of Zener diodes.
Use
It is commonly used for voltage regulation and protection in electronic circuits.
Characteristics
- Zener voltage: 12V
- 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 1N4742A R1G is typically available in reels or bulk packaging, with quantities varying based on supplier and customer requirements.
Specifications
- Zener voltage: 12V
- Tolerance: ±5%
- Maximum reverse current: 5mA
- Maximum impedance: 40Ω
- Maximum temperature coefficient: 0.05%/°C
Detailed Pin Configuration
The 1N4742A R1G has a standard DO-41 package with two leads. The anode is connected to the positive terminal, while the cathode is connected to the negative terminal.
Functional Features
- Voltage regulation: The Zener diode maintains a constant voltage across its terminals, providing stability in electronic circuits.
- Overvoltage protection: It prevents excessive voltage from damaging sensitive components by diverting excess current.
Advantages and Disadvantages
Advantages
- Precise voltage regulation
- Compact size
- Cost-effective solution for voltage regulation and protection
Disadvantages
- Limited power dissipation capability
- Susceptible to damage from overcurrent conditions
Working Principles
The 1N4742A R1G operates based on the Zener effect, where it maintains a nearly constant voltage across its terminals when reverse-biased at or above its breakdown voltage.
Detailed Application Field Plans
Voltage Regulation
The 1N4742A R1G can be used in various electronic devices such as power supplies, voltage regulators, and instrumentation to maintain stable output voltages.
Overvoltage Protection
It is employed in circuitry to protect sensitive components from damage due to transient voltage spikes or overvoltage conditions.
Detailed and Complete Alternative Models
- 1N4732A R1G (4.7V Zener voltage)
- 1N4756A R1G (47V Zener voltage)
- 1N4763A R1G (63V Zener voltage)
In conclusion, the 1N4742A R1G Zener diode offers precise voltage regulation and overvoltage protection in a compact package, making it suitable for a wide range of electronic applications.
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Liste 10 almindelige spørgsmål og svar relateret til anvendelsen af 1N4742A R1G i tekniske løsninger
What is the 1N4742A R1G?
- The 1N4742A R1G is a Zener diode with a voltage rating of 12 volts and a power rating of 1 watt.
What are the typical applications of the 1N4742A R1G?
- It is commonly used in voltage regulation, voltage reference, and overvoltage protection circuits.
What is the maximum current that can flow through the 1N4742A R1G?
- The maximum current for reliable operation is typically around 40 mA.
How does the 1N4742A R1G provide voltage regulation?
- It operates in the reverse-biased breakdown region, maintaining a nearly constant voltage across its terminals.
Can the 1N4742A R1G be used for overvoltage protection?
- Yes, it can be used to limit the voltage across a circuit to its rated value, protecting sensitive components.
What are the key specifications to consider when using the 1N4742A R1G?
- Voltage rating, power dissipation, and maximum current are crucial parameters to take into account.
Is the 1N4742A R1G suitable for low-power applications?
- Yes, it is commonly used in low-power electronic circuits due to its 1 watt power rating.
What are the temperature considerations for the 1N4742A R1G?
- It is important to consider the operating and storage temperature ranges to ensure proper functionality.
Can multiple 1N4742A R1G 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 associated with the 1N4742A R1G?
- Overheating due to excessive current or voltage spikes can lead to failure, so proper heat dissipation and protection measures should be implemented.