Vishay Semiconductor Diodes Division
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MMSZ4685-E3-18
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MMSZ4685-E3-18

Product Overview

Category

The MMSZ4685-E3-18 belongs to the category of Zener diodes.

Use

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

Characteristics

  • Zener voltage: 18V
  • Power dissipation: 500mW
  • Package type: SOD-123
  • RoHS compliant

Packaging/Quantity

The MMSZ4685-E3-18 is typically available in tape and reel packaging with a quantity of 3000 units per reel.

Specifications

  • Zener voltage: 18V
  • Power dissipation: 500mW
  • Forward voltage: 1.5V
  • Reverse current: 5μA
  • Operating temperature range: -65°C to +150°C

Detailed Pin Configuration

The MMSZ4685-E3-18 has three pins: 1. Anode 2. Cathode 3. No connection (NC)

Functional Features

  • Precise voltage regulation
  • Fast response time
  • Low reverse leakage current

Advantages

  • Small form factor
  • RoHS compliant
  • Wide operating temperature range

Disadvantages

  • Limited power dissipation capability
  • Sensitive to voltage spikes

Working Principles

The MMSZ4685-E3-18 operates based on the Zener effect, where it maintains a constant voltage across its terminals when reverse-biased.

Detailed Application Field Plans

The MMSZ4685-E3-18 is widely used in: - Voltage regulators - Overvoltage protection circuits - Signal clamping applications

Detailed and Complete Alternative Models

Some alternative models to the MMSZ4685-E3-18 include: - BZX84C18 - 1N4746A - BZT52C18

In conclusion, the MMSZ4685-E3-18 Zener diode offers precise voltage regulation and transient suppression in a small form factor, making it suitable for various electronic applications.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací MMSZ4685-E3-18 v technických řešeních

  1. What is the MMSZ4685-E3-18?

    • The MMSZ4685-E3-18 is a Zener diode with a voltage of 18V and a power rating of 500mW, commonly used for voltage regulation and protection in electronic circuits.

  2. What are the typical applications of MMSZ4685-E3-18?

    • It is commonly used in voltage regulation, overvoltage protection, and signal clamping in various technical solutions such as power supplies, communication equipment, and automotive electronics.

  3. What is the maximum power dissipation of MMSZ4685-E3-18?

    • The maximum power dissipation of MMSZ4685-E3-18 is 500mW, making it suitable for low-power applications.

  4. What is the voltage tolerance of MMSZ4685-E3-18?

    • The voltage tolerance of MMSZ4685-E3-18 is typically ±5%, ensuring accurate voltage regulation.

  5. How does MMSZ4685-E3-18 provide overvoltage protection?

    • When the input voltage exceeds the Zener voltage (18V), the MMSZ4685-E3-18 conducts and limits the voltage to its rated value, protecting downstream components.

  6. Can MMSZ4685-E3-18 be used in reverse polarity protection?

    • Yes, MMSZ4685-E3-18 can be used for reverse polarity protection by connecting it in series with the power supply, preventing damage due to reverse voltage.

  7. What are the temperature specifications for MMSZ4685-E3-18?

    • The operating temperature range for MMSZ4685-E3-18 is typically -65°C to +150°C, allowing for reliable performance in various environments.

  8. Is MMSZ4685-E3-18 RoHS compliant?

    • Yes, MMSZ4685-E3-18 is RoHS compliant, meeting environmental standards for lead-free manufacturing.

  9. What are the package options available for MMSZ4685-E3-18?

    • MMSZ4685-E3-18 is available in various surface mount packages such as SOD-123 and SOD-323, offering flexibility for different PCB layouts.

  10. Can MMSZ4685-E3-18 be used in battery charging circuits?

    • Yes, MMSZ4685-E3-18 can be used in battery charging circuits to regulate the voltage and protect the battery from overvoltage conditions.