Vishay Semiconductor Diodes Division
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BZX84B18-HE3-08
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BZX84B18-HE3-08

Product Overview

Category

The BZX84B18-HE3-08 belongs to the category of Zener diodes.

Use

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

Characteristics

  • Low leakage current
  • High reliability
  • Small package size
  • Wide voltage range

Package

The BZX84B18-HE3-08 is typically available in a SOT-23 surface mount package.

Essence

This Zener diode is essential for maintaining stable voltage levels in various electronic applications.

Packaging/Quantity

It is usually packaged in reels containing a specific quantity, such as 3000 units per reel.

Specifications

  • Zener Voltage: 18V
  • Power Dissipation: 350mW
  • Maximum Reverse Leakage Current: 5μA
  • Operating Temperature Range: -65°C to +150°C

Detailed Pin Configuration

The BZX84B18-HE3-08 has three pins: 1. Cathode (K) 2. Anode (A) 3. No Connection (NC)

Functional Features

  • Precise voltage regulation
  • Protection against voltage spikes
  • Stable performance over a wide temperature range

Advantages

  • Small form factor
  • Reliable voltage regulation
  • Low leakage current

Disadvantages

  • Limited power dissipation capability
  • Sensitive to reverse voltage polarity

Working Principles

The BZX84B18-HE3-08 operates based on the Zener effect, where it maintains a constant voltage drop across its terminals when it is reverse-biased.

Detailed Application Field Plans

This Zener diode is widely used in: - Voltage regulators - Overvoltage protection circuits - Signal clamping circuits

Detailed and Complete Alternative Models

Some alternative models to the BZX84B18-HE3-08 include: - BZX84C18-HE3-08 - BZX84B20-HE3-08 - BZX84C20-HE3-08

In conclusion, the BZX84B18-HE3-08 Zener diode is a crucial component in electronic circuits, providing precise voltage regulation and protection. Its small package size and reliable performance make it suitable for various applications, despite its limitations in power dissipation and reverse voltage sensitivity. Additionally, there are alternative models available for different voltage requirements, offering flexibility in design and implementation.

技術ソリューションにおける BZX84B18-HE3-08 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 BZX84B18-HE3-08?

    • The BZX84B18-HE3-08 is a 18V Zener diode designed for voltage regulation and protection in electronic circuits.

  2. What are the typical applications of BZX84B18-HE3-08?

    • It is commonly used in voltage regulation, overvoltage protection, and signal clamping in various electronic devices and circuits.

  3. What is the maximum power dissipation of BZX84B18-HE3-08?

    • The maximum power dissipation is typically around 250mW.

  4. What is the voltage tolerance of BZX84B18-HE3-08?

    • The voltage tolerance is typically ±5%.

  5. What is the operating temperature range of BZX84B18-HE3-08?

    • The operating temperature range is usually from -65°C to +150°C.

  6. Can BZX84B18-HE3-08 be used for reverse polarity protection?

    • Yes, it can be used for reverse polarity protection by connecting it in series with the power supply.

  7. Is BZX84B18-HE3-08 suitable for low-power applications?

    • Yes, it is suitable for low-power applications due to its low power dissipation.

  8. What is the package type of BZX84B18-HE3-08?

    • It typically comes in a SOT-23 surface mount package.

  9. Does BZX84B18-HE3-08 require a heatsink?

    • No, it does not require a heatsink for most typical applications due to its low power dissipation.

  10. Can BZX84B18-HE3-08 be used in automotive electronics?

    • Yes, it can be used in automotive electronics for voltage regulation and protection purposes within its specified operating temperature range.