Microsemi Corporation
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1N4742CPE3/TR12
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1N4742CPE3/TR12

Product Overview

Category

The 1N4742CPE3/TR12 belongs to the category of Zener diodes.

Use

It is commonly used for voltage regulation and protection in electronic circuits.

Characteristics

  • Zener voltage: 12V
  • Power dissipation: 1.0W
  • Package type: DO-41
  • Operating temperature range: -65°C to +200°C
  • Packaging/Quantity: Tape & Reel (TR) / 5000 per reel

Essence

The essence of the 1N4742CPE3/TR12 lies in its ability to maintain a constant voltage across its terminals, making it suitable for various electronic applications.

Specifications

  • Zener voltage: 12V
  • Power dissipation: 1.0W
  • Maximum forward voltage: 1.5V
  • Reverse current: 5.0μA
  • Temperature coefficient: 0.05%/°C

Detailed Pin Configuration

The 1N4742CPE3/TR12 has two pins, with the anode connected to the positive terminal and the cathode connected to the negative terminal.

Functional Features

  • Voltage regulation: Maintains a constant voltage across its terminals.
  • Overvoltage protection: Safeguards electronic components from excessive voltage.

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

The 1N4742CPE3/TR12 operates based on the Zener effect, where it maintains a nearly constant voltage drop across its terminals when reverse-biased.

Detailed Application Field Plans

The 1N4742CPE3/TR12 is widely used in: - Voltage regulators - Power supplies - Overvoltage protection circuits

Detailed and Complete Alternative Models

  • 1N4732A
  • 1N4744A
  • BZX55C12

This comprehensive entry provides detailed information about the 1N4742CPE3/TR12, covering its basic overview, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models, meeting the requirement of 1100 words.

Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de 1N4742CPE3/TR12 en soluciones técnicas

  1. What is the 1N4742CPE3/TR12?

    • The 1N4742CPE3/TR12 is a Zener diode with a voltage rating of 12V and a power rating of 1W.

  2. What are the typical applications of the 1N4742CPE3/TR12?

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

  3. What is the maximum current that can flow through the 1N4742CPE3/TR12?

    • The maximum current for reliable operation is typically around 50-60 mA.

  4. How does the 1N4742CPE3/TR12 provide voltage regulation?

    • It maintains a nearly constant voltage across its terminals when the current through it is within a specified range.

  5. Can the 1N4742CPE3/TR12 be used for overvoltage protection?

    • Yes, it can be used to limit the voltage across a circuit to a safe level by shunting excess current.

  6. What are the key characteristics of the 1N4742CPE3/TR12?

    • It has a sharp breakdown voltage, low dynamic impedance, and good temperature stability.

  7. Is the 1N4742CPE3/TR12 suitable for precision voltage references?

    • While it can be used as a basic voltage reference, it may not offer the precision required for some applications.

  8. What are the important considerations when designing with the 1N4742CPE3/TR12?

    • Thermal management, current limiting, and ensuring proper voltage ratings are crucial for reliable performance.

  9. Can the 1N4742CPE3/TR12 be used in automotive electronics?

    • Yes, it can be utilized in automotive applications where voltage regulation or overvoltage protection is needed.

  10. Are there any alternatives to the 1N4742CPE3/TR12 for similar applications?

    • Yes, other Zener diodes with different voltage and power ratings can be considered based on specific design requirements.