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1N4746PE3/TR8 - Semiconductor Diode
Basic Information Overview
- Category: Semiconductor Diode
- Use: Voltage regulation and rectification
- Characteristics: Zener diode, low leakage current, high reliability
- Package: DO-41
- Essence: Regulating voltage in electronic circuits
- Packaging/Quantity: Tape & Reel, 5000 units per reel
Specifications
- Voltage: 18V
- Power Dissipation: 1.0W
- Operating Temperature: -65°C to +200°C
- Zener Impedance: 5Ω
- Max Reverse Leakage Current: 5μA
Detailed Pin Configuration
The 1N4746PE3/TR8 has two pins, with the anode connected to the positive terminal and the cathode connected to the negative terminal.
Functional Features
- Precise voltage regulation
- Low reverse leakage current
- High reliability and stability
Advantages and Disadvantages
Advantages: - Accurate voltage regulation - Low leakage current - High reliability
Disadvantages: - Limited power dissipation capability - Sensitive to temperature variations
Working Principles
The 1N4746PE3/TR8 operates based on the Zener effect, where it maintains a constant voltage across its terminals when reverse biased.
Detailed Application Field Plans
This diode is commonly used in voltage regulator circuits, overvoltage protection, and as a reference element in precision voltage sources.
Detailed and Complete Alternative Models
- 1N4730A: 3.9V Zener diode
- 1N4731A: 4.3V Zener diode
- 1N4732A: 4.7V Zener diode
- 1N4733A: 5.1V Zener diode
- 1N4734A: 5.6V Zener diode
- 1N4735A: 6.2V Zener diode
- 1N4736A: 6.8V Zener diode
- 1N4737A: 7.5V Zener diode
- 1N4738A: 8.2V Zener diode
- 1N4739A: 9.1V Zener diode
In conclusion, the 1N4746PE3/TR8 is a semiconductor diode primarily used for voltage regulation and rectification in electronic circuits. Its precise voltage regulation, low leakage current, and high reliability make it a popular choice in various applications. However, it has limitations in power dissipation and is sensitive to temperature variations. Understanding its specifications, pin configuration, functional features, and alternative models provides a comprehensive view of its capabilities and applications.
Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de 1N4746PE3/TR8 en soluciones técnicas
What is the 1N4746PE3/TR8 diode used for?
- The 1N4746PE3/TR8 is a Zener diode commonly used for voltage regulation and protection in electronic circuits.
What is the voltage rating of the 1N4746PE3/TR8 diode?
- The 1N4746PE3/TR8 has a nominal voltage of 18V, making it suitable for applications requiring a stable 18V reference voltage.
How does the 1N4746PE3/TR8 diode regulate voltage?
- The 1N4746PE3/TR8 operates in the reverse-biased breakdown region, maintaining a constant voltage drop across its terminals, effectively regulating the output voltage.
Can the 1N4746PE3/TR8 be used for overvoltage protection?
- Yes, the 1N4746PE3/TR8 can be employed to protect sensitive components from overvoltage conditions by shunting excess voltage to ground.
What are the typical applications of the 1N4746PE3/TR8 diode?
- Common applications include voltage regulators, voltage references, overvoltage protection circuits, and power supply stabilization.
What is the maximum power dissipation of the 1N4746PE3/TR8 diode?
- The 1N4746PE3/TR8 has a maximum power dissipation of 1W, allowing it to handle moderate power levels in circuit designs.
Is the 1N4746PE3/TR8 suitable for automotive electronics?
- Yes, the 1N4746PE3/TR8 can be used in automotive applications where stable voltage regulation and overvoltage protection are required.
What is the temperature coefficient of the 1N4746PE3/TR8 diode?
- The temperature coefficient is typically around -2mV/°C, indicating a relatively stable voltage reference over a range of temperatures.
Can multiple 1N4746PE3/TR8 diodes be connected in series or parallel?
- Yes, multiple diodes can be connected in series to achieve higher voltage ratings or in parallel to increase current-handling capability.
Are there any specific layout considerations when using the 1N4746PE3/TR8 in a PCB design?
- It's important to minimize trace lengths and provide adequate heat sinking to ensure proper performance and reliability of the diode in the circuit.