SMA5J7.5AHE3/5A - Product Overview and Analysis

Introduction

The SMA5J7.5AHE3/5A is a high-performance TVS (Transient Voltage Suppressor) diode designed to provide robust overvoltage protection for sensitive electronics. This entry will provide a comprehensive overview of the product, including its category, use, characteristics, package, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.

Product Category and Use

The SMA5J7.5AHE3/5A belongs to the category of TVS diodes, which are widely used in electronic circuits to protect against voltage transients caused by lightning, electrostatic discharge (ESD), and other transient voltage events. These diodes are commonly employed in applications such as telecommunications equipment, industrial control systems, automotive electronics, and consumer electronics to safeguard sensitive components from damage due to voltage spikes.

Characteristics

• Voltage Rating: 7.5V
• Peak Pulse Power: 5kW
• Package Type: SMA (DO-214AC)
• Essence: High-power TVS diode with low clamping voltage
• Packaging/Quantity: Available in tape and reel packaging with quantities varying based on supplier

Specifications

• Reverse Standoff Voltage: 6.4V
• Breakdown Voltage: 7.13V to 7.88V
• Clamping Voltage: 11.4V at 14A
• Peak Pulse Current: 202A
• Operating Temperature Range: -55°C to 150°C
• Storage Temperature Range: -55°C to 175°C

Detailed Pin Configuration

The SMA5J7.5AHE3/5A TVS diode features a standard SMA (DO-214AC) package with two pins. The pin configuration is as follows: - Pin 1: Anode - Pin 2: Cathode

Functional Features

• Fast Response Time: Provides rapid protection against transient voltage events.
• Low Clamping Voltage: Ensures that the protected circuitry is exposed to minimal voltage stress during transient events.
• High Peak Pulse Power: Capable of handling high surge currents while maintaining low clamping voltages.

Advantages and Disadvantages

Advantages

• Effective protection against voltage transients
• Fast response time
• Compact form factor
• Wide operating temperature range

Disadvantages

• Higher cost compared to standard diodes
• Limited to low-voltage applications

Working Principles

The SMA5J7.5AHE3/5A operates based on the principle of avalanche breakdown. When a transient voltage event occurs, the diode rapidly conducts, diverting the excess current away from the protected circuitry and limiting the voltage across it to a safe level.

Detailed Application Field Plans

The SMA5J7.5AHE3/5A is well-suited for a wide range of applications, including: - Telecommunications equipment - Industrial control systems - Automotive electronics - Consumer electronics

Detailed and Complete Alternative Models

• Alternative Model 1: SMAJ7.5A (Unidirectional TVS diode)
• Alternative Model 2: P6SMBJ7.5A (Bidirectional TVS diode)
• Alternative Model 3: SMCJ7.5A (Surface Mount TVS diode)

In conclusion, the SMA5J7.5AHE3/5A TVS diode offers reliable overvoltage protection for various electronic applications, making it an essential component in ensuring the longevity and reliability of sensitive electronic systems.

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