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1N4744PE3/TR8
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1N4744PE3/TR8 - Semiconductor Diode

Basic Information Overview

  • Category: Semiconductor Diode
  • Use: Voltage regulation and rectification
  • Characteristics: Zener diode, low reverse leakage current, high reliability
  • Package: DO-41 package
  • Essence: Regulates voltage by maintaining a constant output voltage under varying load currents and temperature changes
  • Packaging/Quantity: Available in tape and reel packaging, quantity varies by manufacturer

Specifications

  • Voltage: 15V
  • Power Dissipation: 1.0W
  • Zener Voltage Tolerance: ±5%
  • Operating Temperature Range: -65°C to +200°C
  • Forward Voltage: 1.2V
  • Reverse Current: 5μA

Detailed Pin Configuration

The 1N4744PE3/TR8 is a two-pin device with the anode connected to the positive terminal and the cathode connected to the negative terminal.

Functional Features

  • Voltage Regulation: Maintains a constant voltage across its terminals
  • Rectification: Allows current to flow in only one direction
  • Stability: Provides stable voltage output under varying conditions

Advantages and Disadvantages

Advantages

  • Precise voltage regulation
  • Low reverse leakage current
  • High reliability
  • Compact size

Disadvantages

  • Limited power dissipation capability
  • Sensitivity to temperature variations

Working Principles

The 1N4744PE3/TR8 operates based on the Zener effect, where it maintains a nearly constant voltage across its terminals when reverse biased. This allows it to regulate voltage and provide stable output under varying conditions.

Detailed Application Field Plans

The 1N4744PE3/TR8 is commonly used in various electronic circuits such as: - Voltage regulators - Power supplies - Signal clamping circuits - Overvoltage protection circuits

Detailed and Complete Alternative Models

Some alternative models to the 1N4744PE3/TR8 include: - 1N4733A: 5.1V Zener diode - 1N4742A: 12V Zener diode - BZX55C15: 15V Zener diode - 1N5338B: 5.6V Zener diode

In conclusion, the 1N4744PE3/TR8 is a reliable semiconductor diode that finds widespread use in voltage regulation and rectification applications due to its precise voltage regulation, low reverse leakage current, and high reliability. However, it has limitations in power dissipation capability and sensitivity to temperature variations. Its working principle based on the Zener effect enables it to maintain stable voltage output, making it suitable for various electronic circuits. Additionally, there are several alternative models available with different voltage specifications to suit specific application requirements.

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技術ソリューションにおける 1N4744PE3/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 1N4744PE3/TR8 diode used for?

    • The 1N4744PE3/TR8 is a Zener diode commonly used for voltage regulation and protection in electronic circuits.

  2. What is the voltage rating of the 1N4744PE3/TR8 diode?

    • The 1N4744PE3/TR8 has a nominal voltage of 15V, making it suitable for applications requiring a stable 15V reference voltage.

  3. How does the 1N4744PE3/TR8 diode regulate voltage?

    • The 1N4744PE3/TR8 operates in the reverse-biased breakdown region, maintaining a constant voltage drop across its terminals, effectively regulating the output voltage.

  4. Can the 1N4744PE3/TR8 be used for overvoltage protection?

    • Yes, the 1N4744PE3/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 1N4744PE3/TR8 diode?

    • Common applications include voltage regulation in power supplies, voltage reference circuits, and overvoltage protection in various electronic systems.

  6. What is the maximum power dissipation of the 1N4744PE3/TR8 diode?

    • The 1N4744PE3/TR8 has a maximum power dissipation of 1.0W, allowing it to handle moderate power levels in circuitry.

  7. Is the 1N4744PE3/TR8 suitable for automotive applications?

    • Yes, the 1N4744PE3/TR8 can be used in automotive electronics for voltage regulation and transient protection purposes.

  8. What is the temperature coefficient of the 1N4744PE3/TR8 diode?

    • The temperature coefficient of the 1N4744PE3/TR8 is typically around -2mV/°C, indicating a relatively stable voltage reference over a range of temperatures.

  9. Can multiple 1N4744PE3/TR8 diodes be connected in series or parallel?

    • Yes, multiple 1N4744PE3/TR8 diodes can be connected in series to create higher voltage references or in parallel to increase current-handling capability.

  10. Are there any specific layout considerations when using the 1N4744PE3/TR8 in a PCB design?

    • It's important to ensure proper heat sinking and adequate trace widths to handle the current passing through the diode, as well as to minimize thermal effects on its performance.