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1N5239BUR-1
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1N5239BUR-1

Product Overview

Category

The 1N5239BUR-1 belongs to the category of Zener diodes.

Use

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

Characteristics

  • Zener voltage: 4.7V
  • Power dissipation: 1.5W
  • Package type: DO-41
  • Operating temperature range: -65°C to +200°C
  • Forward voltage: 1.2V
  • Reverse current: 5µA

Package

The 1N5239BUR-1 is typically available in a DO-41 package.

Essence

This Zener diode is designed to provide a stable reference voltage in electronic circuits.

Packaging/Quantity

It is often supplied in reels or tubes, with quantities varying based on manufacturer specifications.

Specifications

  • Zener voltage: 4.7V
  • Power dissipation: 1.5W
  • Maximum forward voltage: 1.2V
  • Maximum reverse current: 5µA
  • Package type: DO-41
  • Operating temperature range: -65°C to +200°C

Detailed Pin Configuration

The 1N5239BUR-1 Zener diode typically has two pins, with the cathode identified by a band around one end of the diode.

Functional Features

  • Voltage regulation: The 1N5239BUR-1 maintains a constant voltage across its terminals when operated in the reverse breakdown region.
  • Transient suppression: It can protect sensitive components in a circuit from voltage spikes and transients.

Advantages and Disadvantages

Advantages

  • Precise voltage regulation
  • High power dissipation capability
  • Compact size

Disadvantages

  • Limited voltage options compared to other Zener diodes
  • Sensitive to temperature variations

Working Principles

The 1N5239BUR-1 operates based on the principle of the Zener effect, where it maintains a nearly constant voltage across its terminals when reverse biased at or above its breakdown voltage.

Detailed Application Field Plans

Voltage Regulation

The 1N5239BUR-1 can be used in power supplies and voltage reference circuits to maintain a stable output voltage.

Transient Suppression

In electronic systems, it can be employed to protect sensitive components from voltage spikes caused by switching and other transient events.

Detailed and Complete Alternative Models

  • 1N5240BUR-1 (Zener voltage: 5.1V)
  • 1N5226BUR-1 (Zener voltage: 3.3V)
  • BZX84C4V7 (Zener voltage: 4.7V)

In conclusion, the 1N5239BUR-1 Zener diode is a reliable component for voltage regulation and transient suppression in various electronic applications, offering precise voltage control and high power dissipation capabilities. While it may have limitations in terms of available voltage options and sensitivity to temperature, it remains a popular choice for many circuit designs.

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技術ソリューションにおける 1N5239BUR-1 の適用に関連する 10 件の一般的な質問と回答をリストします。

  1. What is the 1N5239BUR-1?

    • The 1N5239BUR-1 is a Zener diode with a voltage rating of 9.1V and a power rating of 500mW.

  2. What are the typical applications of the 1N5239BUR-1?

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

  3. What is the maximum current that can flow through the 1N5239BUR-1?

    • The maximum current for reliable operation is typically around 20-30mA.

  4. How does the 1N5239BUR-1 provide voltage regulation?

    • The Zener diode conducts in reverse bias when the voltage across it reaches its breakdown voltage, effectively maintaining a constant voltage drop across it.

  5. Can the 1N5239BUR-1 be used for overvoltage protection?

    • Yes, it can be used to shunt excess voltage away from sensitive components in a circuit, protecting them from damage.

  6. What are the key specifications to consider when using the 1N5239BUR-1 in a design?

    • Key specifications include the breakdown voltage, power dissipation, and maximum current.

  7. Are there any specific thermal considerations when using the 1N5239BUR-1?

    • Yes, it's important to consider the thermal resistance and ensure proper heat sinking if the diode is operating near its maximum power rating.

  8. Can the 1N5239BUR-1 be used in automotive applications?

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

  9. What are the potential failure modes of the 1N5239BUR-1?

    • Common failure modes include overheating due to excessive current, as well as voltage transients exceeding its ratings.

  10. Are there any alternatives to the 1N5239BUR-1 for similar applications?

    • Yes, other Zener diodes with comparable voltage and power ratings can be considered, such as the 1N4739A or BZX55C9V1.