ON Semiconductor
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BZX79C20
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BZX79C20

Product Overview

Category

BZX79C20 belongs to the category of Zener diodes.

Use

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

Characteristics

  • Zener voltage: 20V
  • Power dissipation: 500mW
  • Package type: DO-35
  • Operating temperature range: -65°C to +200°C
  • Reverse leakage current: 5µA

Package

The BZX79C20 is typically available in tape and reel packaging with a quantity of 500 units per reel.

Specifications

  • Zener voltage: 20V
  • Power dissipation: 500mW
  • Maximum forward voltage: 1.2V
  • Reverse current: 5µA
  • Operating temperature: -65°C to +200°C
  • Package type: DO-35

Detailed Pin Configuration

The BZX79C20 has two pins, anode, and cathode, which are denoted by the standard pinout for DO-35 package.

Functional Features

The BZX79C20 Zener diode provides a stable reference voltage when operated in its reverse breakdown region. It exhibits sharp breakdown characteristics, making it suitable for precision voltage regulation applications.

Advantages and Disadvantages

Advantages

  • Precise voltage regulation
  • Small form factor
  • Wide operating temperature range

Disadvantages

  • Limited power dissipation capability
  • Sensitive to temperature variations

Working Principles

When the reverse voltage across the BZX79C20 exceeds its specified Zener voltage, it enters the breakdown region, allowing a controlled amount of current to flow through it, maintaining a constant voltage drop across its terminals.

Detailed Application Field Plans

The BZX79C20 is widely used in: - Voltage regulators - Overvoltage protection circuits - Signal clamping circuits - Voltage reference circuits

Detailed and Complete Alternative Models

Some alternative models to BZX79C20 include: - BZX79C18 (Zener voltage: 18V) - BZX79C22 (Zener voltage: 22V) - BZX79C24 (Zener voltage: 24V)

In conclusion, the BZX79C20 Zener diode is a reliable component for voltage regulation and protection in various electronic circuits, offering precise voltage control and stability within a compact form factor.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací BZX79C20 v technických řešeních

  1. What is the voltage rating of BZX79C20?

    • The voltage rating of BZX79C20 is 20 volts.

  2. What is the power dissipation of BZX79C20?

    • The power dissipation of BZX79C20 is typically 500mW.

  3. What is the maximum forward voltage drop of BZX79C20?

    • The maximum forward voltage drop of BZX79C20 is typically 1.2V at 20mA.

  4. What is the reverse leakage current of BZX79C20?

    • The reverse leakage current of BZX79C20 is typically 5µA at its maximum reverse voltage.

  5. What is the temperature coefficient of BZX79C20?

    • The temperature coefficient of BZX79C20 is typically 0.07%/°C.

  6. What are the typical applications of BZX79C20?

    • BZX79C20 is commonly used in voltage regulation, overvoltage protection, and signal clamping applications.

  7. What is the package type of BZX79C20?

    • BZX79C20 is available in a DO-35 package.

  8. What is the operating temperature range of BZX79C20?

    • The operating temperature range of BZX79C20 is typically -65°C to +200°C.

  9. What is the maximum junction temperature of BZX79C20?

    • The maximum junction temperature of BZX79C20 is typically 175°C.

  10. What are the key differences between BZX79C20 and other similar Zener diodes?

    • BZX79C20 offers a specific voltage rating of 20V and has different electrical characteristics compared to other Zener diodes. Always refer to the datasheet for detailed specifications.