MMSZ4713-HE3-18

Product Overview

Category

The MMSZ4713-HE3-18 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 Zener diode is commonly used for voltage regulation and transient suppression in various electronic circuits. It is particularly useful in stabilizing and regulating voltage in power supplies and protecting sensitive components from voltage spikes.

Characteristics

• Voltage Regulation: The MMSZ4713-HE3-18 provides precise voltage regulation, making it suitable for applications requiring stable voltage output.
• Transient Suppression: It offers effective transient suppression, safeguarding connected components from voltage surges.
• Small Package: The diode comes in a small package, making it suitable for compact circuit designs.
• Low Leakage Current: It exhibits low leakage current, ensuring efficient performance in diverse applications.

Package

The MMSZ4713-HE3-18 is typically available in a surface-mount package, allowing for easy integration onto printed circuit boards (PCBs).

Essence

The essence of this Zener diode lies in its ability to maintain a constant voltage across its terminals, providing stability and protection to electronic circuits.

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
• Operating Temperature Range: -65°C to +150°C
• Forward Voltage: 1.2V
• Reverse Leakage Current: 5μA

Detailed Pin Configuration

The MMSZ4713-HE3-18 follows a standard SOD-123 surface-mount package configuration, with two pins for connection to the circuit.

Functional Features

• Voltage Regulation: The diode maintains a constant voltage drop across its terminals, ensuring stable output voltage.
• Transient Suppression: It effectively suppresses transient voltage spikes, protecting downstream components.
• Compact Design: Its small form factor enables space-efficient circuit layouts.

Advantages and Disadvantages

Advantages

• Precise voltage regulation
• Effective transient suppression
• Small package size for compact designs
• Low leakage current for efficient operation

Disadvantages

• Limited power dissipation capability compared to larger diode packages
• Sensitive to temperature variations due to its small size

Working Principles

The MMSZ4713-HE3-18 operates based on the Zener effect, where it allows current to flow in the reverse-biased direction once the voltage across its terminals reaches the Zener voltage. This characteristic makes it suitable for voltage regulation and transient suppression applications.

Detailed Application Field Plans

Voltage Regulation

The diode can be employed in voltage regulator circuits for maintaining a stable output voltage, crucial in various electronic devices and power supplies.

Transient Suppression

In applications where protection against voltage spikes is essential, such as in automotive electronics and industrial control systems, the MMSZ4713-HE3-18 can be utilized to suppress transients and safeguard sensitive components.

Detailed and Complete Alternative Models

• BZX84C18: A similar Zener diode with an 18V voltage rating and SOT-23 package.
• 1N4746A: Another 18V Zener diode available in a DO-41 axial package, suitable for through-hole mounting.

In conclusion, the MMSZ4713-HE3-18 Zener diode offers precise voltage regulation and transient suppression capabilities in a compact package, making it suitable for a wide range of electronic applications.

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