Vishay Semiconductor Diodes Division
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1N4758A-TR
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1N4758A-TR

Product Overview

The 1N4758A-TR is a Zener diode belonging to the semiconductor category. It is commonly used for voltage regulation and protection in electronic circuits. This diode exhibits characteristics such as stable voltage output, low impedance, and high reliability. The package type for the 1N4758A-TR is axial-lead, and it is available in various packaging quantities to suit different application requirements.

Specifications

  • Voltage: 56V
  • Power Dissipation: 1.0W
  • Zener Voltage Tolerance: ±5%
  • Operating Temperature Range: -65°C to +200°C

Detailed Pin Configuration

The 1N4758A-TR has an axial-lead package with two leads. The cathode lead is typically shorter than the anode lead, allowing for easy identification and installation.

Functional Features

The primary function of the 1N4758A-TR is to maintain a constant voltage across its terminals, even when subjected to varying input voltages or load conditions. This makes it ideal for voltage regulation and transient voltage suppression in electronic circuits.

Advantages and Disadvantages

Advantages

  • Precise voltage regulation
  • Low impedance
  • High reliability
  • Wide operating temperature range

Disadvantages

  • Limited power dissipation capability
  • Voltage tolerance may not be suitable for some precision applications

Working Principles

The 1N4758A-TR operates based on the Zener effect, where it maintains a nearly constant voltage drop across its terminals when reverse-biased. This allows it to regulate the voltage in a circuit by shunting excess current when the voltage exceeds the specified value.

Detailed Application Field Plans

The 1N4758A-TR finds extensive use in various electronic applications, including: - Power supply units - Voltage regulators - Overvoltage protection circuits - Signal conditioning circuits

Detailed and Complete Alternative Models

Some alternative models to the 1N4758A-TR include: - 1N4742A-TR (12V) - 1N4744A-TR (15V) - 1N4746A-TR (18V) - 1N4748A-TR (22V)

In summary, the 1N4758A-TR Zener diode is a reliable component for voltage regulation and protection in electronic circuits, offering precise voltage control and high reliability. Its characteristics, specifications, and application versatility make it a valuable asset in various electronic designs.

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تکنیکی حل میں 1N4758A-TR کے اطلاق سے متعلق 10 عام سوالات اور جوابات کی فہرست بنائیں

  1. What is the 1N4758A-TR?

    • The 1N4758A-TR is a Zener diode with a voltage rating of 39V and a power rating of 1W.

  2. What are the typical applications of the 1N4758A-TR?

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

  3. What is the maximum current that can flow through the 1N4758A-TR?

    • The maximum current for the 1N4758A-TR is typically around 40mA.

  4. How does the 1N4758A-TR provide voltage regulation?

    • The Zener diode conducts current in reverse-bias at a specific voltage, providing a stable output voltage across its terminals.

  5. Can the 1N4758A-TR be used for overvoltage protection?

    • Yes, it can be used to protect sensitive components from overvoltage by shunting excess current when the voltage exceeds its rating.

  6. What are the key parameters to consider when using the 1N4758A-TR in a circuit?

    • Key parameters include the Zener voltage, power dissipation, and maximum current to ensure proper functionality and reliability.

  7. Is a heat sink required for the 1N4758A-TR?

    • Depending on the application and power dissipation, a heat sink may be necessary to prevent overheating and ensure long-term stability.

  8. Can multiple 1N4758A-TR diodes be connected in series or parallel?

    • Yes, they can be connected in series to achieve higher voltage ratings or in parallel to share current load.

  9. What are the potential failure modes of the 1N4758A-TR?

    • Common failure modes include thermal runaway, excessive current, and voltage spikes, which can lead to permanent damage.

  10. Are there any alternative components that can be used in place of the 1N4758A-TR?

    • Yes, other Zener diodes with similar voltage and power ratings can be used as alternatives, but careful consideration of their specifications is necessary for compatibility.