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1N4748AE3/TR13

1N4748AE3/TR13 - Semiconductor Diode

Basic Information Overview

  • Category: Semiconductor Diode
  • Use: Voltage regulation and rectification
  • Characteristics: Zener diode, low leakage current, high reliability
  • Package: DO-41 (Axial Lead)
  • Essence: Regulating voltage in electronic circuits
  • Packaging/Quantity: Typically available in reels of 2000 units

Specifications

  • Voltage: 22V
  • Power Dissipation: 1.0W
  • Operating Temperature: -65°C to +200°C
  • Zener Impedance: 5Ω
  • Max Reverse Leakage Current: 5μA

Detailed Pin Configuration

The 1N4748AE3/TR13 has a standard axial lead package with two leads. The cathode is marked by a black band around the diode body.

Functional Features

  • Voltage Regulation: Maintains a constant voltage across its terminals.
  • Reverse Voltage Protection: Prevents damage from reverse voltage spikes.
  • Stability: Provides stable voltage output under varying conditions.

Advantages and Disadvantages

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

Working Principles

The 1N4748AE3/TR13 operates based on the Zener effect, where it maintains a nearly constant voltage drop 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. It finds applications in power supplies, instrumentation, and automotive electronics.

Detailed and Complete Alternative Models

  • 1N4733A: 5.1V Zener diode
  • 1N4739A: 9.1V Zener diode
  • BZX85C22: 22V Zener diode

Note: The alternative models listed above are for reference purposes and may have different specifications.

This comprehensive entry provides detailed information about the 1N4748AE3/TR13 semiconductor diode, including its basic overview, 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 1N4748AE3/TR13 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 1N4748AE3/TR13 diode used for?

    • The 1N4748AE3/TR13 is a Zener diode commonly used for voltage regulation and protection in electronic circuits.

  2. What is the voltage rating of the 1N4748AE3/TR13 diode?

    • The 1N4748AE3/TR13 has a nominal voltage of 22V, making it suitable for applications requiring stable voltage references.

  3. How does the 1N4748AE3/TR13 diode regulate voltage?

    • The 1N4748AE3/TR13 operates in the reverse-biased breakdown region, maintaining a constant voltage drop across its terminals to regulate the output voltage.

  4. Can the 1N4748AE3/TR13 be used for overvoltage protection?

    • Yes, the 1N4748AE3/TR13 can be employed to protect sensitive components from overvoltage conditions by shunting excess voltage away from the circuit.

  5. What are the typical applications of the 1N4748AE3/TR13 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 1N4748AE3/TR13 diode?

    • The 1N4748AE3/TR13 has a maximum power dissipation of 1.3W, allowing it to handle moderate power levels in typical applications.

  7. Does the 1N4748AE3/TR13 have temperature stability?

    • Yes, the 1N4748AE3/TR13 exhibits good temperature stability, making it suitable for use in environments with varying temperatures.

  8. Can multiple 1N4748AE3/TR13 diodes be connected in series or parallel?

    • Multiple 1N4748AE3/TR13 diodes can be connected in series to create higher voltage references, but connecting them in parallel is not recommended due to potential current imbalance.

  9. What is the forward voltage drop of the 1N4748AE3/TR13 diode?

    • The forward voltage drop of the 1N4748AE3/TR13 is typically very low, around 1V, when operated in the forward-biased direction.

  10. Are there any special considerations for PCB layout when using the 1N4748AE3/TR13?

    • It's important to minimize trace lengths and keep the diode close to the load to reduce parasitic resistance and inductance, ensuring stable performance.