1SMB5940 R5G

Product Overview

Category

The 1SMB5940 R5G belongs to the category of surface mount silicon zener diodes.

Use

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

Characteristics

• Zener voltage: 15V
• Power dissipation: 3W
• Package type: SMB
• RoHS compliant

Package

The 1SMB5940 R5G is typically available in a SMB package, which is designed for automated placement and provides a compact footprint.

Essence

The essence of the 1SMB5940 R5G lies in its ability to regulate voltage and protect electronic components from voltage spikes.

Packaging/Quantity

The 1SMB5940 R5G is usually supplied in tape and reel packaging with quantities varying based on manufacturer specifications.

Specifications

• Zener Voltage: 15V
• Power Dissipation: 3W
• Operating Temperature Range: -65°C to +150°C
• Forward Voltage: 1.5V at 200mA

Detailed Pin Configuration

The 1SMB5940 R5G typically has two pins, with the anode connected to the positive side and the cathode connected to the negative side of the circuit.

Functional Features

• Voltage regulation
• Transient suppression
• High power dissipation capability

Advantages

• Compact size
• RoHS compliant
• Wide operating temperature range

Disadvantages

• Limited power dissipation compared to larger diodes
• Sensitive to overvoltage conditions

Working Principles

The 1SMB5940 R5G operates based on the principle of the Zener effect, where it maintains a nearly constant voltage across its terminals when reverse biased.

Detailed Application Field Plans

The 1SMB5940 R5G is widely used in: - Voltage regulation in power supplies - Surge protection in communication equipment - Overvoltage protection in automotive electronics

Detailed and Complete Alternative Models

Some alternative models to the 1SMB5940 R5G include: - 1N4744A (Zener voltage: 15V, Power dissipation: 1W) - BZX85C15 (Zener voltage: 15V, Power dissipation: 1.3W) - MMSZ5245B (Zener voltage: 15V, Power dissipation: 500mW)

In conclusion, the 1SMB5940 R5G is a surface mount silicon zener diode with a Zener voltage of 15V and a power dissipation of 3W. It is commonly used for voltage regulation and transient suppression in various electronic applications, offering compact size and wide operating temperature range as advantages. However, it has limitations in power dissipation and sensitivity to overvoltage conditions. Its working principle is based on the Zener effect, and it finds extensive use in power supplies, communication equipment, and automotive electronics. Alternative models such as 1N4744A, BZX85C15, and MMSZ5245B provide similar functionality as substitutes.