1N4765A Diode
Product Overview
The 1N4765A diode is a semiconductor device belonging to the category of Zener diodes. It is commonly used for voltage regulation and transient suppression in electronic circuits. The diode exhibits characteristics such as a specific breakdown voltage, low dynamic resistance, and high reliability. It is typically packaged in a glass encapsulation with axial leads and is available in various packaging quantities.
Specifications
- Breakdown Voltage: 47V
- Power Dissipation: 1.0W
- Operating Temperature Range: -65°C to +200°C
- Package Type: Axial Lead
- Package Quantity: Various options available
Detailed Pin Configuration
The 1N4765A diode has an axial lead package with two leads. The cathode is connected to the non-colored end of the diode, while the anode is connected to the colored end (usually black).
Functional Features
The primary function of the 1N4765A diode is to maintain a constant voltage across its terminals when it is operated in the reverse breakdown region. This feature makes it suitable for voltage regulation and transient suppression applications.
Advantages and Disadvantages
Advantages
- Precise voltage regulation
- Low dynamic resistance
- High reliability
Disadvantages
- Limited power dissipation capability
- Susceptible to thermal runaway under certain conditions
Working Principles
The 1N4765A diode operates based on the principle of the Zener effect, where it maintains a nearly constant voltage across its terminals when it is reverse-biased and operated in the breakdown region. This allows it to regulate voltage and suppress transient overvoltage conditions in electronic circuits.
Detailed Application Field Plans
The 1N4765A diode finds extensive use in various electronic circuits, including: - Voltage regulation in power supplies - Overvoltage protection in automotive electronics - Signal clamping and limiting in communication systems
Detailed and Complete Alternative Models
Some alternative models to the 1N4765A diode include: - 1N4732A (4.7V breakdown voltage) - 1N4742A (12V breakdown voltage) - 1N4788A (39V breakdown voltage)
In conclusion, the 1N4765A diode is a reliable semiconductor device that offers precise voltage regulation and transient suppression capabilities. Its application spans across diverse electronic circuits, making it a crucial component in modern electronic systems.
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What is the 1N4765A diode used for?
- The 1N4765A is a Zener diode commonly used for voltage regulation and protection in electronic circuits.
What is the voltage rating of the 1N4765A diode?
- The 1N4765A has a nominal voltage rating of 39 volts.
Can the 1N4765A be used for overvoltage protection?
- Yes, the 1N4765A can be used to protect sensitive components from overvoltage conditions by shunting excess voltage away from the circuit.
How does the 1N4765A regulate voltage?
- The 1N4765A regulates voltage by maintaining a constant voltage drop across its terminals, allowing it to stabilize the voltage in a circuit.
What are the typical applications of the 1N4765A diode?
- Typical applications include voltage regulation in power supplies, voltage reference circuits, and overvoltage protection in various electronic devices.
What is the maximum power dissipation of the 1N4765A?
- The 1N4765A has a maximum power dissipation of 1.3 watts, making it suitable for many low to medium power applications.
Is the 1N4765A polarity-sensitive?
- Yes, the 1N4765A is polarity-sensitive, meaning it must be connected in the correct orientation to function properly in a circuit.
Can multiple 1N4765A diodes be connected in series or parallel?
- Yes, multiple 1N4765A diodes can be connected in series to increase the breakdown voltage or in parallel to handle higher current levels.
What is the temperature coefficient of the 1N4765A?
- The temperature coefficient of the 1N4765A is typically around -2 mV/°C, indicating a relatively stable voltage reference over a range of temperatures.
Are there any common failure modes or issues associated with the 1N4765A?
- Common failure modes include thermal runaway at high currents and voltage overshoot during transient events. Proper heat sinking and transient protection measures should be considered in the design of circuits using the 1N4765A.