MMSZ5239B-HE3-18

Product Overview

Category

The MMSZ5239B-HE3-18 belongs to the category of Zener diodes, which are semiconductor devices designed to maintain a specific voltage across their terminals.

Use

It is commonly used for voltage regulation and protection in various electronic circuits.

Characteristics

• Low leakage current
• High reliability
• Small package size
• Wide operating temperature range

Package

The MMSZ5239B-HE3-18 is typically available in a surface-mount SOD-123 package.

Essence

This Zener diode serves as a crucial component in maintaining stable voltage levels within electronic circuits.

Packaging/Quantity

It is usually supplied in reels containing a specific quantity, such as 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 MMSZ5239B-HE3-18 has two pins, with the cathode connected to the marked terminal and the anode connected to the unmarked terminal.

Functional Features

• Precise voltage regulation
• Protection against voltage spikes
• Low impedance at the Zener voltage

Advantages and Disadvantages

Advantages

• Reliable voltage regulation
• Compact size
• Wide operating temperature range

Disadvantages

• Limited power dissipation capability
• Vulnerable to excessive current or voltage

Working Principles

The Zener diode operates by allowing current to flow in the forward direction like a regular diode, but it also permits current to flow in the reverse direction when the voltage reaches its specified Zener voltage.

Detailed Application Field Plans

The MMSZ5239B-HE3-18 is widely used in: - Voltage regulators - Overvoltage protection circuits - Signal clamping applications

Detailed and Complete Alternative Models

Some alternative models to the MMSZ5239B-HE3-18 include: - BZX84C18 - 1N4746A - BZT52C18

In conclusion, the MMSZ5239B-HE3-18 Zener diode is a vital component in electronic circuits, providing precise voltage regulation and protection against voltage spikes. Its compact size and wide operating temperature range make it suitable for various applications, although its limited power dissipation capability and vulnerability to excessive current or voltage should be considered in circuit design.

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