Vishay Semiconductor Diodes Division
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MMSZ4703-HE3-18
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MMSZ4703-HE3-18

Introduction

The MMSZ4703-HE3-18 is a diode belonging to the category of Zener diodes. It is commonly used in electronic circuits for voltage regulation and protection against voltage spikes. This entry provides an overview of the basic information, specifications, detailed pin configuration, functional features, advantages and disadvantages, working principles, detailed application field plans, and alternative models of the MMSZ4703-HE3-18.

Basic Information Overview

  • Category: Zener Diode
  • Use: Voltage regulation and protection against voltage spikes
  • Characteristics: Low leakage current, precise voltage regulation, small form factor
  • Package: SOD-123 Package
  • Essence: Semiconductor diode with a specific breakdown voltage
  • Packaging/Quantity: Typically available in reels or tubes containing multiple units

Specifications

  • Voltage - Zener (Nom) (Vz): 18V
  • Power - Max: 500mW
  • Impedance (Max) (Zzt): 20 Ohm
  • Current - Reverse Leakage @ Vr: 100nA @ 13.5V
  • Operating Temperature: -65°C ~ 150°C

Detailed Pin Configuration

The MMSZ4703-HE3-18 typically has two pins, with the cathode identified by a band on the body of the diode.

Functional Features

  • Precise voltage regulation at 18V
  • Low reverse leakage current
  • Fast response time to voltage spikes

Advantages and Disadvantages

Advantages

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

Disadvantages

  • Limited power dissipation capability
  • Sensitivity to temperature variations

Working Principles

The MMSZ4703-HE3-18 operates based on the principle of the Zener effect, where it maintains a constant voltage drop across its terminals when it is reverse-biased and the applied voltage exceeds its breakdown voltage.

Detailed Application Field Plans

The MMSZ4703-HE3-18 finds applications in various electronic circuits such as: - Voltage regulators - Overvoltage protection circuits - Signal clamping circuits

Detailed and Complete Alternative Models

Some alternative models to the MMSZ4703-HE3-18 include: - BZX84C18 - 1N4746A - BZT52C18

In conclusion, the MMSZ4703-HE3-18 Zener diode is a crucial component in electronic circuits requiring precise voltage regulation and protection against voltage spikes. Its small form factor and accurate voltage regulation make it suitable for a wide range of applications.

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技術ソリューションにおける MMSZ4703-HE3-18 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 MMSZ4703-HE3-18 used for?

    • The MMSZ4703-HE3-18 is a Zener diode designed for voltage regulation and protection in various electronic circuits.

  2. What is the voltage rating of the MMSZ4703-HE3-18?

    • The MMSZ4703-HE3-18 has a nominal voltage of 3.6V, making it suitable for applications requiring voltage clamping or regulation at this level.

  3. What are the typical applications of the MMSZ4703-HE3-18?

    • Typical applications include overvoltage protection, voltage regulation, and transient suppression in electronic circuits such as power supplies, communication equipment, and consumer electronics.

  4. What is the maximum power dissipation of the MMSZ4703-HE3-18?

    • The maximum power dissipation of the MMSZ4703-HE3-18 is typically around 500mW, ensuring its capability to handle transient events and voltage spikes.

  5. What is the operating temperature range of the MMSZ4703-HE3-18?

    • The MMSZ4703-HE3-18 is designed to operate within a temperature range of -65°C to 150°C, making it suitable for a wide range of environmental conditions.

  6. Does the MMSZ4703-HE3-18 require external components for operation?

    • The MMSZ4703-HE3-18 can be used independently but may benefit from additional passive components for optimal performance in certain circuit configurations.

  7. Is the MMSZ4703-HE3-18 RoHS compliant?

    • Yes, the MMSZ4703-HE3-18 is compliant with the Restriction of Hazardous Substances (RoHS) directive, ensuring its environmental friendliness.

  8. What is the package type of the MMSZ4703-HE3-18?

    • The MMSZ4703-HE3-18 is available in a surface mount SOD-123 package, which is compact and suitable for automated assembly processes.

  9. Can the MMSZ4703-HE3-18 be used in automotive applications?

    • Yes, the MMSZ4703-HE3-18 is suitable for use in automotive electronics, provided that it meets the specific requirements and standards for automotive-grade components.

  10. Where can I find detailed specifications and application notes for the MMSZ4703-HE3-18?

    • Detailed specifications and application notes for the MMSZ4703-HE3-18 can be found in the product datasheet provided by the manufacturer or distributor, offering comprehensive information for design and implementation.