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1N4739APE3/TR8
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1N4739APE3/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, 3000 units per reel

Specifications

  • Voltage: 9.1V
  • Power Dissipation: 1.0W
  • Operating Temperature: -65°C to +200°C
  • Zener Impedance: 10Ω
  • Max Reverse Leakage Current: 5μA

Detailed Pin Configuration

The 1N4739APE3/TR8 has two pins, anode (A) and cathode (K). The anode is connected to the positive side of the circuit, while the cathode is connected to the negative side.

Functional Features

  • Voltage Regulation: Maintains a constant voltage across its terminals.
  • Rectification: Allows current to flow in only one direction.

Advantages and Disadvantages

  • Advantages:
    • Precise voltage regulation
    • Low leakage current
    • High reliability
  • Disadvantages:
    • Limited power dissipation capability
    • Sensitivity to temperature variations

Working Principles

The 1N4739APE3/TR8 operates based on the Zener effect, where it maintains a nearly constant voltage across its terminals when reverse-biased.

Detailed Application Field Plans

This diode is commonly used in voltage regulator circuits, surge suppressors, and overvoltage protection in various electronic devices such as power supplies, amplifiers, and automotive electronics.

Detailed and Complete Alternative Models

  • 1N4738A: 8.2V Zener diode
  • 1N4740A: 10V Zener diode
  • BZX55C9V1: 9.1V Zener diode

This completes the entry for the 1N4739APE3/TR8 semiconductor diode, covering its basic information, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.

技術ソリューションにおける 1N4739APE3/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 1N4739APE3/TR8?

    • The 1N4739APE3/TR8 is a Zener diode with a voltage rating of 9.1V and a power dissipation of 1.0W.

  2. How does the 1N4739APE3/TR8 work?

    • The 1N4739APE3/TR8 operates as a voltage regulator by maintaining a constant output voltage across its terminals, even when there are variations in input voltage or load current.

  3. What are the typical applications of the 1N4739APE3/TR8?

    • Common applications include voltage regulation, voltage reference, overvoltage protection, and signal conditioning in electronic circuits.

  4. What are the key specifications of the 1N4739APE3/TR8?

    • The key specifications include a voltage rating of 9.1V, a maximum power dissipation of 1.0W, and a tolerance of ±5%.

  5. How do I select the appropriate resistor for use with the 1N4739APE3/TR8?

    • To determine the required series resistor, you can use Ohm's law to calculate the resistance needed to limit the current flowing through the Zener diode at the desired operating voltage.

  6. Can the 1N4739APE3/TR8 be used for reverse voltage protection?

    • Yes, the 1N4739APE3/TR8 can be used for reverse voltage protection by connecting it in reverse bias across the circuit to be protected.

  7. What are the temperature considerations for the 1N4739APE3/TR8?

    • The 1N4739APE3/TR8 has an operating temperature range typically from -65°C to +200°C, making it suitable for a wide range of environments.

  8. Is the 1N4739APE3/TR8 suitable for high-frequency applications?

    • While the 1N4739APE3/TR8 can function at moderate frequencies, it may not be ideal for high-frequency applications due to its inherent capacitance and response time.

  9. Can multiple 1N4739APE3/TR8 diodes be connected in series or parallel?

    • Yes, multiple 1N4739APE3/TR8 diodes can be connected in series to achieve higher voltage ratings or in parallel to increase the current-handling capacity.

  10. Are there any precautions to consider when using the 1N4739APE3/TR8 in a circuit?

    • It's important to ensure that the maximum power dissipation rating is not exceeded, and to protect the diode from voltage spikes or transients that could damage it. Additionally, proper heat sinking may be necessary to prevent overheating during operation.