Microsemi Corporation
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1N2974RB
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1N2974RB

Product Overview

Category

The 1N2974RB belongs to the category of semiconductor devices, specifically a Zener diode.

Use

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

Characteristics

  • The 1N2974RB has a specific breakdown voltage and exhibits stable voltage regulation characteristics.
  • It is designed to operate reliably under various temperature and current conditions.

Package

The 1N2974RB is typically available in a glass axial-lead package.

Essence

The essence of the 1N2974RB lies in its ability to maintain a constant voltage across its terminals, making it essential for stabilizing power supplies and protecting sensitive components from voltage fluctuations.

Packaging/Quantity

It is commonly packaged in reels or tubes, with quantities varying based on manufacturer specifications.

Specifications

  • Voltage: 12V
  • Power Dissipation: 1.5W
  • Zener Voltage Tolerance: ±5%
  • Operating Temperature Range: -65°C to +200°C

Detailed Pin Configuration

The 1N2974RB typically consists of two leads, with the cathode being shorter than the anode. The pin configuration is as follows: - Anode (A) - Longer lead - Cathode (K) - Shorter lead

Functional Features

  • Precise voltage regulation
  • Low impedance
  • High reliability
  • Fast response time

Advantages

  • Stable voltage regulation
  • Wide operating temperature range
  • Robust construction for reliability

Disadvantages

  • Limited current handling capability
  • Sensitivity to reverse voltage

Working Principles

The 1N2974RB operates based on the principle of the Zener effect, where it maintains a nearly constant voltage drop across its terminals when it is reverse-biased and operated within its specified current and temperature limits.

Detailed Application Field Plans

The 1N2974RB finds extensive use in various electronic circuits, including: - Voltage regulators - Overvoltage protection circuits - Power supplies - Signal clamping circuits

Detailed and Complete Alternative Models

Some alternative models to the 1N2974RB include: - 1N2970RB - 1N2971RB - 1N2972RB - 1N2973RB

These alternatives offer similar voltage regulation and protection capabilities, with variations in breakdown voltages and power dissipation ratings.

In conclusion, the 1N2974RB Zener diode serves as a crucial component in electronic circuits, providing stable voltage regulation and protection. Its precise specifications, functional features, and application versatility make it an indispensable part of modern electronics.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací 1N2974RB v technických řešeních

  1. What is 1N2974RB?

    • 1N2974RB is a Zener diode with a voltage rating of 12 volts and a power rating of 5 watts.

  2. What are the typical applications of 1N2974RB?

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

  3. What is the maximum current that 1N2974RB can handle?

    • The maximum current for 1N2974RB is typically around 417 mA.

  4. How does 1N2974RB provide voltage regulation?

    • 1N2974RB operates in the reverse-biased breakdown region, maintaining a nearly constant voltage across its terminals when operated within its specified current and power ratings.

  5. Can 1N2974RB be used for transient voltage suppression?

    • Yes, it can be used to suppress transient voltage spikes and protect sensitive components in a circuit from damage.

  6. What are the key specifications to consider when using 1N2974RB in a design?

    • Key specifications include its voltage rating, power rating, maximum current, and temperature coefficient.

  7. Is 1N2974RB suitable for automotive applications?

    • Yes, it can be used in automotive electronics for voltage regulation and protection against voltage transients.

  8. What are the typical failure modes of 1N2974RB?

    • Common failure modes include thermal runaway due to excessive power dissipation and overstress from voltage spikes.

  9. Can 1N2974RB be used in parallel to increase current handling capability?

    • Yes, it is possible to use multiple 1N2974RB diodes in parallel to increase the overall current handling capacity.

  10. Are there any specific layout or mounting considerations for 1N2974RB?

    • It is important to ensure proper heat sinking and thermal management to keep the diode within its operating temperature range. Additionally, attention should be paid to minimize lead length and maintain proper electrical connections.