Vishay Semiconductor Diodes Division
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MMSZ5255B-HE3-18
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MMSZ5255B-HE3-18

Introduction

The MMSZ5255B-HE3-18 is a semiconductor product belonging to the category of Zener diodes. This entry provides an overview of its basic information, specifications, detailed pin configuration, functional features, advantages and disadvantages, working principles, detailed application field plans, and alternative models.

Basic Information Overview

  • Category: Zener Diode
  • Use: Voltage regulation and protection in electronic circuits
  • Characteristics: Low leakage current, precise voltage regulation, small package size
  • Package: SOD-123
  • Essence: Semiconductor device for maintaining a stable voltage across a load
  • Packaging/Quantity: Available in reels with varying quantities

Specifications

  • Voltage: 18V
  • Power Dissipation: 500mW
  • Operating Temperature Range: -65°C to +150°C
  • Zener Impedance: 40Ω
  • Tolerance: ±5%

Detailed Pin Configuration

The MMSZ5255B-HE3-18 Zener diode has a standard SOD-123 package with two pins. The cathode is connected to the marked side of the package, while the anode is connected to the opposite side.

Functional Features

  • Precise voltage regulation at 18V
  • Low reverse leakage current
  • Fast response time to voltage variations
  • Small form factor for space-constrained applications

Advantages and Disadvantages

Advantages

  • Accurate voltage regulation
  • Compact package size
  • Low leakage current

Disadvantages

  • Limited power dissipation capability
  • Sensitivity to temperature variations

Working Principles

The MMSZ5255B-HE3-18 Zener diode operates based on the principle of the Zener effect, where it maintains a constant voltage drop across its terminals when reverse-biased. This allows it to regulate the voltage across a load, providing stability and protection against voltage spikes.

Detailed Application Field Plans

The MMSZ5255B-HE3-18 Zener diode finds extensive use in various electronic circuits, including: - Voltage regulators - Overvoltage protection circuits - Signal clamping circuits - Power supplies

Detailed and Complete Alternative Models

  • MMSZ5248B-HE3-18: 15V Zener diode with similar characteristics
  • MMSZ5266B-HE3-18: 22V Zener diode suitable for higher voltage applications
  • BZX84C18LT1G: SOT-23 Zener diode with comparable voltage rating

In conclusion, the MMSZ5255B-HE3-18 Zener diode offers precise voltage regulation and protection in a compact package, making it suitable for a wide range of electronic applications.

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Énumérez 10 questions et réponses courantes liées à l'application de MMSZ5255B-HE3-18 dans les solutions techniques

  1. What is the MMSZ5255B-HE3-18?

    • The MMSZ5255B-HE3-18 is a Zener diode designed for voltage regulation and transient suppression in electronic circuits.

  2. What is the voltage rating of the MMSZ5255B-HE3-18?

    • The MMSZ5255B-HE3-18 has a nominal voltage rating of 27V.

  3. What are the typical applications of the MMSZ5255B-HE3-18?

    • Common applications include voltage regulation, overvoltage protection, and transient suppression in various electronic devices and circuits.

  4. What is the maximum power dissipation of the MMSZ5255B-HE3-18?

    • The maximum power dissipation is typically around 500mW.

  5. What is the operating temperature range of the MMSZ5255B-HE3-18?

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

  6. What is the package type of the MMSZ5255B-HE3-18?

    • It is typically available in a SOD-123 surface mount package.

  7. How does the MMSZ5255B-HE3-18 provide overvoltage protection?

    • The Zener diode conducts when the voltage across it exceeds its breakdown voltage, effectively clamping the voltage and protecting downstream components.

  8. Can the MMSZ5255B-HE3-18 be used for voltage regulation in power supplies?

    • Yes, it can be used to regulate voltage within a specific range in power supply circuits.

  9. What are the key electrical characteristics of the MMSZ5255B-HE3-18?

    • These include its Zener voltage, reverse leakage current, and dynamic impedance.

  10. Are there any application notes or reference designs available for using the MMSZ5255B-HE3-18 in technical solutions?

    • Yes, manufacturers often provide application notes and reference designs for incorporating the MMSZ5255B-HE3-18 into various technical solutions.