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BZX55C18
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BZX55C18 Diode Encyclopedia Entry

Product Overview

Category

The BZX55C18 diode belongs to the category of Zener diodes, which are semiconductor devices designed to maintain a fixed voltage across their terminals.

Use

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

Characteristics

  • Zener voltage: 18V
  • Power dissipation: 500mW
  • Maximum forward voltage: 1.5V
  • Operating temperature range: -65°C to +200°C

Package

The BZX55C18 diode is typically available in a DO-35 glass package.

Essence

The essence of the BZX55C18 diode lies in its ability to provide a stable voltage reference in electronic circuits.

Packaging/Quantity

It is usually supplied in reels or tubes with varying quantities depending on the manufacturer.

Specifications

  • Zener voltage: 18V
  • Power dissipation: 500mW
  • Maximum forward voltage: 1.5V
  • Reverse current: 5μA
  • Temperature coefficient: 5mV/°C

Detailed Pin Configuration

The BZX55C18 diode has two pins and follows the standard pin configuration for DO-35 packages.

Functional Features

The BZX55C18 diode exhibits the following functional features: - Precise voltage regulation at 18V - Low reverse leakage current - Fast response time to changes in voltage

Advantages

  • Stable voltage reference
  • Small form factor
  • Wide operating temperature range

Disadvantages

  • Limited power dissipation capability
  • Sensitive to temperature variations

Working Principles

The BZX55C18 diode operates based on the Zener effect, where it maintains a constant voltage drop across its terminals when reverse biased.

Detailed Application Field Plans

The BZX55C18 diode finds applications in various fields including: - Voltage regulation in power supplies - Overvoltage protection in electronic circuits - Signal clamping and limiting

Detailed and Complete Alternative Models

Some alternative models to the BZX55C18 diode include: - BZX85C18 - 1N4746A - 1N4733A

In conclusion, the BZX55C18 diode is a crucial component in electronic circuits, providing stable voltage references and overvoltage protection. Its characteristics, working principles, and application field plans make it an essential part of many electronic systems.

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قم بإدراج 10 أسئلة وإجابات شائعة تتعلق بتطبيق BZX55C18 في الحلول التقنية

  1. What is the maximum power dissipation of BZX55C18?

    • The maximum power dissipation of BZX55C18 is 500mW.

  2. What is the forward voltage drop of BZX55C18?

    • The forward voltage drop of BZX55C18 is typically 0.9V at a forward current of 10mA.

  3. What is the reverse breakdown voltage of BZX55C18?

    • The reverse breakdown voltage of BZX55C18 is 18V.

  4. Can BZX55C18 be used for voltage regulation in low power applications?

    • Yes, BZX55C18 can be used for voltage regulation in low power applications due to its stable zener voltage.

  5. What is the temperature coefficient of BZX55C18?

    • The temperature coefficient of BZX55C18 is typically 0.07% per °C.

  6. Is BZX55C18 suitable for use in voltage reference circuits?

    • Yes, BZX55C18 is suitable for use in voltage reference circuits due to its precise and stable zener voltage.

  7. What is the maximum zener impedance of BZX55C18?

    • The maximum zener impedance of BZX55C18 is 40Ω.

  8. Can BZX55C18 be used for overvoltage protection in electronic circuits?

    • Yes, BZX55C18 can be used for overvoltage protection in electronic circuits by shunting excess voltage to ground.

  9. What is the typical junction capacitance of BZX55C18?

    • The typical junction capacitance of BZX55C18 is 250pF.

  10. Is BZX55C18 suitable for use in battery-powered devices?

    • Yes, BZX55C18 is suitable for use in battery-powered devices due to its low power dissipation and stable zener voltage characteristics.