MMSZ5254C-G3-18

Product Overview

Category

The MMSZ5254C-G3-18 belongs to the category of Zener diodes, which are semiconductor devices designed to allow current to flow in the forward direction like a normal diode, but also in the reverse direction if the voltage is larger than the breakdown voltage known as the Zener voltage.

Use

This product is commonly used for voltage regulation and transient suppression in various electronic circuits.

Characteristics

• Voltage Regulation: The MMSZ5254C-G3-18 provides stable voltage regulation, making it suitable for use in power supplies and voltage reference circuits.
• Transient Suppression: It offers effective protection against voltage spikes and transients, safeguarding sensitive components in electronic systems.
• Small Package: The device comes in a compact package, making it suitable for space-constrained applications.
• High Reliability: With its robust construction, the MMSZ5254C-G3-18 offers high reliability and performance consistency.

Package

The MMSZ5254C-G3-18 is typically available in surface mount packages, such as SOD-123 or similar, offering ease of integration into circuit designs.

Packaging/Quantity

It is commonly supplied in reels or tape and reel packaging, with quantities varying based on manufacturer specifications.

Specifications

• Zener Voltage: 18V
• Power Dissipation: 500mW
• Forward Voltage: 1.2V
• Reverse Leakage Current: 5μA
• Operating Temperature Range: -65°C to 150°C

Detailed Pin Configuration

The MMSZ5254C-G3-18 typically features a standard SOD-123 package with two pins, one for the anode and the other for the cathode.

Functional Features

• Voltage Regulation: The Zener diode maintains a constant voltage across its terminals, providing stability in voltage-sensitive applications.
• Transient Suppression: It effectively clamps transient voltages, protecting downstream components from damage.
• Reverse Bias Operation: The device allows controlled current flow in the reverse direction when the voltage exceeds the Zener voltage.

Advantages and Disadvantages

Advantages

• Precise Voltage Regulation
• Effective Transient Suppression
• Compact Size
• High Reliability

Disadvantages

• Limited Power Dissipation Capability
• Sensitivity to Overcurrent Conditions

Working Principles

The MMSZ5254C-G3-18 operates based on the Zener effect, where a heavily doped semiconductor junction allows current to flow in the reverse-biased direction once the voltage reaches the Zener voltage. This characteristic makes it suitable for voltage regulation and transient suppression.

Detailed Application Field Plans

The MMSZ5254C-G3-18 finds application in various fields, including: - Power Supplies: Providing stable voltage references in linear and switching power supply designs. - Consumer Electronics: Protecting sensitive components from voltage transients in devices such as TVs, computers, and audio equipment. - Automotive Electronics: Safeguarding automotive electronics from voltage spikes and surges.

Detailed and Complete Alternative Models

• BZX84C18: A similar 18V Zener diode in a SOT-23 package.
• 1N4746A: An alternative 18V Zener diode in a DO-41 package.

In conclusion, the MMSZ5254C-G3-18 Zener diode offers precise voltage regulation and transient suppression capabilities, making it a versatile component in various electronic applications.

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