SMF4L45A - Product Overview and Specifications

Introduction

The SMF4L45A is a diode belonging to the category of transient voltage suppressors (TVS). It is commonly used for surge protection in electronic circuits to safeguard against voltage spikes and transients. This entry provides an overview of the SMF4L45A, including its basic information, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.

Basic Information Overview

• Category: Transient Voltage Suppressor Diode
• Use: Surge protection in electronic circuits
• Characteristics: Fast response time, low clamping voltage, high surge current capability
• Package: SMA package
• Essence: Protection against voltage spikes and transients
• Packaging/Quantity: Typically available in reels of 3000 units

Specifications

• Part Number: SMF4L45A
• Peak Pulse Power: 400W
• Standoff Voltage: 45V
• Breakdown Voltage: 50V
• Clamping Voltage: 77.4V at 10A
• Operating Temperature Range: -55°C to +150°C
• Storage Temperature Range: -55°C to +150°C

Detailed Pin Configuration

The SMF4L45A diode has a standard SMA package with two pins. Pin 1 is the cathode, and pin 2 is the anode.

Functional Features

• Fast response time
• Low clamping voltage
• High surge current capability
• RoHS compliant

Advantages and Disadvantages

Advantages

• Effective surge protection
• Fast response to transient events
• Compact and easy to integrate into circuit designs

Disadvantages

• Limited power dissipation capability
• May require additional components for comprehensive surge protection

Working Principles

The SMF4L45A operates by diverting excess transient current away from sensitive electronic components when a voltage spike occurs. It rapidly clamps the voltage to a safe level, protecting downstream circuitry.

Detailed Application Field Plans

The SMF4L45A is widely used in various applications, including: - Consumer electronics - Telecommunications equipment - Industrial automation systems - Automotive electronics - Power supplies

Detailed and Complete Alternative Models

• Alternative Model 1: SMF5.0A
  • Standoff Voltage: 5.0V
  • Peak Pulse Power: 200W
• Alternative Model 2: SMF6.8A
  • Standoff Voltage: 6.8V
  • Peak Pulse Power: 300W
• Alternative Model 3: SMF10A
  • Standoff Voltage: 10V
  • Peak Pulse Power: 400W

In conclusion, the SMF4L45A transient voltage suppressor diode offers effective surge protection with its fast response time and low clamping voltage. Its compact design makes it suitable for various electronic applications, although it may require additional components for comprehensive surge protection in high-power environments.

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