SMDJ45A - Product Encyclopedia Entry

Introduction

The SMDJ45A is a crucial component in the field of electronic devices, offering essential protection against transient voltage spikes. This entry provides a comprehensive overview of the SMDJ45A, including its product category, basic information, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.

Product Category

The SMDJ45A belongs to the category of surface mount transient voltage suppressor diodes. These diodes are widely used in electronic circuits to protect sensitive components from voltage surges and spikes.

Basic Information Overview

• Use: The SMDJ45A is primarily used for surge protection in electronic circuits and devices.
• Characteristics: It exhibits high surge capability, low clamping voltage, and fast response time.
• Package: The SMDJ45A is typically available in a surface mount package.
• Essence: Its essence lies in providing reliable protection against transient voltage spikes.
• Packaging/Quantity: It is commonly packaged in reels or tubes, with varying quantities based on manufacturer specifications.

Specifications

• Voltage Rating: 45V
• Peak Pulse Power: 3000W
• Operating Temperature Range: -55°C to +150°C
• Breakdown Voltage: 50.2V to 55.7V
• Reverse Standoff Voltage: 45V
• Clamping Voltage: 77.4V at 58.9A

Detailed Pin Configuration

The SMDJ45A typically features a standard surface mount diode configuration with clearly defined anode and cathode terminals.

Functional Features

• Transient Voltage Suppression: Effectively clamps transient overvoltage to a safe level.
• Fast Response Time: Rapid reaction to voltage spikes ensures minimal impact on downstream components.
• High Surge Capability: Capable of withstanding high surge currents without degradation.

Advantages and Disadvantages

Advantages

• Reliable surge protection for sensitive electronic components.
• Fast response time ensures minimal disruption during transient events.
• Compact surface mount package for easy integration into circuit designs.

Disadvantages

• Limited to specific voltage and power ratings.
• May require additional components for comprehensive surge protection in complex systems.

Working Principles

The SMDJ45A operates by diverting excessive transient voltage away from sensitive components, thereby limiting the voltage across the protected circuit.

Detailed Application Field Plans

The SMDJ45A finds extensive application in various electronic systems, including: - Power Supplies - Communication Equipment - Industrial Control Systems - Automotive Electronics - Consumer Electronics

Detailed and Complete Alternative Models

• SMDJ5.0A: 5V rating, suitable for low-voltage applications.
• SMDJ15A: 15V rating, ideal for medium-power circuits.
• SMDJ85A: 85V rating, designed for higher voltage protection requirements.

In conclusion, the SMDJ45A plays a vital role in safeguarding electronic circuits from transient voltage spikes, making it an indispensable component in modern electronic designs.

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