SMBZ5945B-E3/5B

Introduction

The SMBZ5945B-E3/5B is a semiconductor product belonging to the category of voltage regulator diodes. This component is widely used in electronic circuits to regulate voltage and protect sensitive components from overvoltage conditions. The following entry provides an overview of the basic information, specifications, detailed pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models of the SMBZ5945B-E3/5B.

Basic Information Overview

• Category: Voltage Regulator Diode
• Use: Regulating voltage and protecting sensitive components
• Characteristics: High precision, low leakage current, compact size
• Package: SOD-123FL
• Essence: Voltage regulation and protection
• Packaging/Quantity: Tape & Reel, 3000 units per reel

Specifications

• Voltage Rating: 45V
• Current Rating: 2A
• Operating Temperature Range: -65°C to +150°C
• Storage Temperature Range: -65°C to +175°C
• Forward Voltage Drop: 0.7V at 1A
• Reverse Leakage Current: 5µA at 25°C

Detailed Pin Configuration

The SMBZ5945B-E3/5B has three pins: 1. Anode (A) 2. Cathode (K) 3. Not Connected (NC)

Functional Features

• Voltage Regulation: Maintains a constant output voltage despite fluctuations in input voltage.
• Overvoltage Protection: Safeguards connected components by limiting the output voltage during overvoltage conditions.
• Low Leakage Current: Minimizes power loss and enhances efficiency.

Advantages and Disadvantages

Advantages

• Precise voltage regulation
• Low leakage current
• Compact package size

Disadvantages

• Limited maximum voltage and current ratings
• Sensitive to reverse voltage conditions

Working Principles

The SMBZ5945B-E3/5B operates based on the principle of Zener diode voltage regulation. When the input voltage exceeds the specified level, the diode conducts and maintains a nearly constant output voltage.

Detailed Application Field Plans

The SMBZ5945B-E3/5B finds extensive use in various applications, including: - Voltage regulation in power supplies - Overvoltage protection in automotive electronics - Voltage clamping in communication equipment

Detailed and Complete Alternative Models

Some alternative models to the SMBZ5945B-E3/5B include: - 1N5226B: Similar voltage rating and package type - BZX84C15: Lower voltage rating but compatible package - MMBZ5245B: Higher voltage rating with similar characteristics

In conclusion, the SMBZ5945B-E3/5B is a crucial component in electronic circuits, providing precise voltage regulation and overvoltage protection. Its compact size and low leakage current make it suitable for various applications, although its limitations should be considered when selecting alternative models.

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