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1N4745A
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1N4745A - Diode Zener Single 16V 5% 1W 2-Pin DO-41

Product Overview

Category

The 1N4745A is a diode zener, which falls under the category of semiconductor devices.

Use

It is commonly used in electronic circuits to regulate voltage and protect sensitive components from overvoltage.

Characteristics

  • Voltage: 16V
  • Power Dissipation: 1W
  • Tolerance: ±5%
  • Package Type: DO-41
  • Packaging: Bulk or Tape & Reel

Essence

The essence of the 1N4745A lies in its ability to maintain a constant voltage across its terminals when operated in reverse breakdown region.

Packaging/Quantity

The 1N4745A is available in bulk packaging or tape & reel, with varying quantities depending on the supplier.

Specifications

  • Voltage - Zener (Nom) (Vz): 16V
  • Power - Max: 1W
  • Impedance (Max) (Zzt): 20 Ohm
  • Current - Reverse Leakage @ Vr: 5µA @ 13V
  • Tolerance: ±5%
  • Mounting Type: Through Hole
  • Package / Case: DO-204AL, DO-41, Axial
  • Operating Temperature: -65°C ~ 200°C

Detailed Pin Configuration

The 1N4745A has a simple 2-pin configuration, with the anode connected to the positive terminal and the cathode connected to the negative terminal.

Functional Features

The 1N4745A functions as a voltage regulator by maintaining a constant voltage drop across its terminals when operated in the reverse breakdown region.

Advantages and Disadvantages

Advantages

  • Precise voltage regulation
  • Compact size
  • Wide operating temperature range

Disadvantages

  • Limited power dissipation capability
  • Susceptible to damage from excessive current or voltage spikes

Working Principles

When the voltage across the 1N4745A exceeds its rated value, it enters the reverse breakdown region, allowing current to flow in the reverse direction and maintaining a nearly constant voltage drop across its terminals.

Detailed Application Field Plans

The 1N4745A is widely used in various electronic applications such as: - Voltage regulation in power supplies - Overvoltage protection in electronic circuits - Voltage reference in instrumentation

Detailed and Complete Alternative Models

Some alternative models to the 1N4745A include: - 1N4739A - 1N4746A - BZX85C16

In conclusion, the 1N4745A diode zener serves as a crucial component in electronic circuits, providing precise voltage regulation and overvoltage protection. Its compact size and wide operating temperature range make it suitable for diverse applications in the electronics industry.

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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de 1N4745A en soluciones técnicas

Sure, here are 10 common questions and answers related to the application of 1N4745A in technical solutions:

  1. What is 1N4745A?

    • 1N4745A is a popular 16V, 1W Zener diode commonly used for voltage regulation and protection in electronic circuits.

  2. What is the maximum power dissipation of 1N4745A?

    • The maximum power dissipation of 1N4745A is 1 watt.

  3. What is the voltage tolerance of 1N4745A?

    • The voltage tolerance of 1N4745A is +/- 5%.

  4. How can 1N4745A be used for voltage regulation?

    • 1N4745A can be used in reverse-bias mode to regulate voltage by maintaining a constant output voltage across its terminals.

  5. What are the typical applications of 1N4745A?

    • Typical applications of 1N4745A include voltage regulation, overvoltage protection, and voltage reference in various electronic circuits.

  6. What is the operating temperature range of 1N4745A?

    • The operating temperature range of 1N4745A is typically from -65°C to +200°C.

  7. How does 1N4745A provide overvoltage protection?

    • When the input voltage exceeds the breakdown voltage of 1N4745A, it conducts heavily, diverting excess current and protecting the downstream circuitry.

  8. Can 1N4745A be used in series or parallel configurations?

    • Yes, 1N4745A can be used in series to increase the breakdown voltage or in parallel to increase the current-handling capacity.

  9. What are the key specifications to consider when selecting 1N4745A for a specific application?

    • Key specifications to consider include breakdown voltage, power dissipation, voltage tolerance, and operating temperature range.

  10. Are there any precautions to consider when using 1N4745A in a circuit?

    • It's important to ensure that the maximum power dissipation and current ratings are not exceeded, and to provide adequate heat sinking if necessary to prevent overheating.

I hope these questions and answers are helpful for your technical solutions involving 1N4745A! Let me know if you need further assistance.