1N4747AP/TR12 - Semiconductor Diode
Basic Information Overview
- Category: Semiconductor Diode
- Use: Voltage regulation and rectification
- Characteristics: Zener diode, low leakage current, high reliability
- Package: Axial leaded, DO-41 package
- Essence: Regulates voltage by maintaining a constant output voltage
- Packaging/Quantity: Available in tape and reel packaging, quantity varies by manufacturer
Specifications
- Voltage: 20V
- Power Dissipation: 1W
- Zener Voltage Tolerance: ±5%
- Operating Temperature Range: -65°C to +200°C
Detailed Pin Configuration
The 1N4747AP/TR12 has two leads with the following pin configuration: - Anode (A) - Positive terminal - Cathode (K) - Negative terminal
Functional Features
- Maintains a constant voltage across its terminals when reverse biased
- Protects circuits from overvoltage conditions
- Low dynamic resistance allows for accurate voltage regulation
Advantages and Disadvantages
Advantages
- Precise voltage regulation
- High reliability and stability
- Low cost
- Wide operating temperature range
Disadvantages
- Limited power dissipation capability
- Susceptible to damage from excessive current or voltage spikes
Working Principles
The 1N4747AP/TR12 operates based on the Zener effect, where it maintains a nearly constant voltage drop across its terminals when reverse biased. This allows it to regulate voltage within a circuit and protect sensitive components from overvoltage.
Detailed Application Field Plans
The 1N4747AP/TR12 is commonly used in various electronic circuits such as: - Voltage regulators - Power supplies - Overvoltage protection circuits - Signal clamping circuits
Detailed and Complete Alternative Models
Some alternative models to the 1N4747AP/TR12 include: - 1N4739A: 9.1V Zener diode - 1N4750A: 27V Zener diode - BZX55C20: 20V Zener diode
In conclusion, the 1N4747AP/TR12 is a reliable semiconductor diode that finds widespread use in voltage regulation and protection applications due to its precise characteristics and stable performance.
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技術ソリューションにおける 1N4747AP/TR12 の適用に関連する 10 件の一般的な質問と回答をリストします。
What is the 1N4747AP/TR12?
- The 1N4747AP/TR12 is a Zener diode with a voltage rating of 20V and a power rating of 1W.
What are the typical applications of the 1N4747AP/TR12?
- It is commonly used in voltage regulation, voltage reference, and overvoltage protection circuits.
What is the maximum current that can flow through the 1N4747AP/TR12?
- The maximum current for reliable operation is typically around 50-60 mA.
How does the 1N4747AP/TR12 provide voltage regulation?
- The Zener diode conducts in the reverse-biased direction when the voltage across it exceeds its breakdown voltage, effectively regulating the voltage.
Can the 1N4747AP/TR12 be used for overvoltage protection?
- Yes, it can be used to shunt excess voltage away from sensitive components in a circuit.
What are the key specifications to consider when using the 1N4747AP/TR12 in a design?
- Key specifications include the breakdown voltage, power dissipation, and maximum current.
Are there any temperature considerations when using the 1N4747AP/TR12?
- Yes, the operating and storage temperatures should be within the specified range to ensure proper performance and reliability.
Can multiple 1N4747AP/TR12 diodes be connected in series or parallel?
- Connecting them in series can increase the breakdown voltage, while connecting them in parallel can increase the current-handling capability.
What are some common alternatives to the 1N4747AP/TR12?
- Alternatives include other Zener diodes with similar voltage and power ratings, such as the 1N4748A or BZX55C20.
Where can I find detailed application notes for using the 1N4747AP/TR12 in technical solutions?
- Detailed application notes can often be found in the datasheet provided by the manufacturer or in technical reference manuals for electronic components.