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1N4746PE3/TR8
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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.

技術ソリューションにおける 1N4746PE3/TR8 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。

  1. 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.

  2. 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.

  3. 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.

  4. 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.

  5. What are the typical applications of the 1N4746PE3/TR8 diode?

    • Common applications include voltage regulators, voltage references, overvoltage protection circuits, and power supply stabilization.

  6. 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.

  7. 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.

  8. 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.

  9. 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.

  10. 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.