SMDJ8.5CA - Product Overview and Specifications

Introduction

The SMDJ8.5CA belongs to the category of transient voltage suppressor diodes (TVS diodes) and is widely used for surge protection in electronic circuits. This entry provides a comprehensive overview of the SMDJ8.5CA, 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: SMD (Surface Mount Device)
• Essence: Protects sensitive electronic components from voltage spikes
• Packaging/Quantity: Typically available in reels or tubes with varying quantities

Specifications

• Voltage Rating: 8.5V
• Peak Pulse Power: 3kW
• Breakdown Voltage: 9.4V to 10.5V
• Operating Temperature Range: -55°C to +150°C
• Storage Temperature Range: -55°C to +150°C

Detailed Pin Configuration

The SMDJ8.5CA typically follows a standard SMD diode pin configuration, with clear markings for the cathode and anode terminals. The datasheet provides detailed information on the pinout and orientation of the diode.

Functional Features

• Transient Voltage Suppression: Rapidly clamps transient overvoltage events to protect downstream components.
• Low Clamping Voltage: Ensures minimal voltage overshoot during surge events.
• Fast Response Time: Reacts quickly to transient voltage spikes, safeguarding sensitive electronics.

Advantages and Disadvantages

Advantages

• Effective surge protection for sensitive electronic components
• Fast response time ensures minimal impact on circuit operation
• Compact SMD package allows for easy integration into PCB designs

Disadvantages

• Limited to specific voltage ratings, may require multiple diodes for broader protection range
• Vulnerable to prolonged overvoltage conditions beyond its peak pulse power rating

Working Principles

The SMDJ8.5CA operates by diverting excess transient voltage away from sensitive components, effectively limiting the voltage across the protected circuit. When a surge event occurs, the diode rapidly conducts, providing a low-impedance path for the excess energy to be dissipated.

Detailed Application Field Plans

The SMDJ8.5CA finds extensive use in various applications, including: - Telecommunications: Protection of communication equipment from lightning-induced surges - Automotive Electronics: Safeguarding vehicle electronics from voltage transients - Industrial Control Systems: Surge protection for PLCs, sensors, and control circuits - Consumer Electronics: Protection of sensitive ICs and connectors in electronic devices

Detailed and Complete Alternative Models

• P6SMB8.5CA: Similar TVS diode with a different package and form factor
• 1.5SMC8.5CA: Higher power handling capability with a similar breakdown voltage
• SMAJ8.5CA: Lower profile SMD diode with comparable surge protection characteristics

In conclusion, the SMDJ8.5CA transient voltage suppressor diode offers effective surge protection for a wide range of electronic applications, with its fast response time and low clamping voltage making it a valuable component in safeguarding sensitive circuits against transient voltage events.

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