MM3Z18VT1

Product Overview

Category

The MM3Z18VT1 belongs to the category of Zener diodes, which are semiconductor devices designed to maintain a fixed voltage across their terminals.

Use

This product is commonly used in electronic circuits for voltage regulation and protection against overvoltage conditions.

Characteristics

• Voltage Regulation: The MM3Z18VT1 provides a stable voltage output under varying load conditions.
• Reverse Breakdown Voltage: With a reverse breakdown voltage of 18V, it offers protection against excessive voltage.
• Small Package: This diode comes in a small package, making it suitable for compact circuit designs.
• Low Leakage Current: It exhibits low leakage current, ensuring minimal power loss.

Package

The MM3Z18VT1 is typically available in surface-mount packages, such as SOD-323, with tape and reel packaging for ease of handling and assembly.

Specifications

• Voltage: 18V
• Power Dissipation: 200mW
• Forward Voltage: 900mV
• Reverse Current: 5μA
• Operating Temperature Range: -55°C to 150°C

Detailed Pin Configuration

The MM3Z18VT1 has three pins: anode, cathode, and no-connect. The anode is connected to the positive terminal of the circuit, the cathode to the negative terminal, and the no-connect pin is left unconnected.

Functional Features

• Voltage Regulation: Maintains a constant voltage across its terminals, providing stability to the circuit.
• Overvoltage Protection: Safeguards sensitive components by diverting excess voltage away from the circuit.
• Compact Design: Small form factor makes it suitable for space-constrained applications.

Advantages

• Precise Voltage Regulation
• Compact Size
• Low Leakage Current

Disadvantages

• Limited Power Dissipation Capacity
• Vulnerable to Overcurrent Conditions

Working Principles

The MM3Z18VT1 operates based on the principle of the Zener effect, where it maintains a nearly constant voltage across its terminals when operated in the reverse breakdown region.

Detailed Application Field Plans

• Voltage Regulation: Used in power supplies and voltage reference circuits.
• Overvoltage Protection: Employed in electronic equipment to protect against transient voltage spikes.
• Signal Clipping: Utilized in signal processing circuits to limit voltage levels.

Detailed and Complete Alternative Models

• MM3Z15VT1: 15V Zener diode with similar characteristics
• MM3Z20VT1: 20V Zener diode offering higher reverse breakdown voltage

In conclusion, the MM3Z18VT1 Zener diode serves as a reliable component for voltage regulation and overvoltage protection in various electronic applications, despite its limitations in power dissipation and overcurrent handling.

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