Taiwan Semiconductor Corporation
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1N4745A R0G
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1N4745A R0G

Product Overview

Category

The 1N4745A R0G belongs to the category of Zener diodes.

Use

It is commonly used for voltage regulation and voltage reference applications.

Characteristics

  • Zener voltage: 16V
  • Power dissipation: 1.0W
  • Package type: DO-41
  • Tolerance: ±5%
  • Operating temperature range: -65°C to +200°C

Packaging/Quantity

The 1N4745A R0G is typically available in reels or bulk packaging, with quantities varying based on supplier and customer requirements.

Specifications

  • Zener voltage: 16V
  • Power dissipation: 1.0W
  • Maximum forward voltage: 1.2V
  • Reverse current: 5μA
  • Temperature coefficient: 5mV/°C

Detailed Pin Configuration

The 1N4745A R0G has two pins, anode (A) and cathode (K), which are identified by the polarity band on the body of the diode.

Functional Features

The 1N4745A R0G provides a constant voltage output when it is operated in its reverse breakdown region, making it suitable for voltage regulation and reference applications.

Advantages and Disadvantages

Advantages

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

Disadvantages

  • Limited power dissipation capability
  • Sensitivity to temperature variations

Working Principles

The 1N4745A R0G operates based on the principle of the Zener effect, where it maintains a nearly constant voltage across its terminals when it is reverse-biased and operated at or above its breakdown voltage.

Detailed Application Field Plans

The 1N4745A R0G is widely used in various electronic circuits such as: - Voltage regulators - Voltage references - Overvoltage protection circuits - Signal clamping circuits

Detailed and Complete Alternative Models

Some alternative models to the 1N4745A R0G include: - 1N4733A - 1N4734A - 1N4735A - 1N4736A - 1N4737A

In conclusion, the 1N4745A R0G Zener diode offers precise voltage regulation and finds extensive use in diverse electronic applications due to its reliable performance and compact design.

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Liste 10 almindelige spørgsmål og svar relateret til anvendelsen af 1N4745A R0G i tekniske løsninger

  1. What is the 1N4745A R0G?

    • The 1N4745A R0G is a Zener diode with a voltage rating of 16V and a power rating of 1W.

  2. What are the typical applications of the 1N4745A R0G?

    • It is commonly used in voltage regulation, voltage reference, and overvoltage protection circuits.

  3. What is the maximum current that can flow through the 1N4745A R0G?

    • The maximum current for reliable operation is typically around 40-50 mA.

  4. How does the 1N4745A R0G provide voltage regulation?

    • It operates in the reverse-biased breakdown region, maintaining a nearly constant voltage across its terminals.

  5. Can the 1N4745A R0G be used for overvoltage protection?

    • Yes, it can be used to clamp the voltage at a specific level, protecting downstream components from excessive voltage.

  6. What are the key specifications to consider when using the 1N4745A R0G in a circuit?

    • Voltage rating, power dissipation, and maximum current are critical parameters to consider.

  7. Is the 1N4745A R0G polarity sensitive?

    • Yes, it is important to observe the correct polarity when incorporating it into a circuit.

  8. What are some common alternatives to the 1N4745A R0G?

    • Other Zener diodes with similar voltage and power ratings, such as the 1N4746A or BZX55C16, can be considered as alternatives.

  9. Can the 1N4745A R0G be used in temperature-sensitive applications?

    • It is important to consider the temperature coefficient of the diode when using it in temperature-sensitive applications.

  10. Are there any special considerations for PCB layout when using the 1N4745A R0G?

    • Placing the diode close to the load and minimizing trace lengths can help reduce voltage drops and improve performance.