SMBJ78C - Product Overview

Introduction

The SMBJ78C belongs to the category of transient voltage suppressor (TVS) diodes, which are widely used in electronic circuits to protect sensitive components from voltage spikes and transients. This entry provides a comprehensive overview of the SMBJ78C, 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 (TVS) Diode
• Use: Protection against voltage spikes and transients in electronic circuits
• Characteristics: Fast response time, low clamping voltage, high surge capability
• Package: SMB (DO-214AA)
• Essence: Provides robust protection for sensitive electronic components
• Packaging/Quantity: Available in tape and reel packaging with varying quantities

Specifications

• Part Number: SMBJ78C
• Stand-off Voltage: 78V
• Breakdown Voltage: 86.7V
• Peak Pulse Power: 600W
• Operating Temperature Range: -55°C to 150°C
• RoHS Compliant: Yes

Detailed Pin Configuration

The SMBJ78C TVS diode has a standard SMB (DO-214AA) package with two pins. The pin configuration is as follows: - Pin 1: Anode - Pin 2: Cathode

Functional Features

• Fast Response Time: Rapid reaction to voltage transients
• Low Clamping Voltage: Limits the voltage across the protected circuit
• High Surge Capability: Ability to handle large surge currents without degradation

Advantages and Disadvantages

Advantages

• Effective protection against voltage spikes
• Compact SMB package for space-constrained applications
• RoHS compliant for environmental sustainability

Disadvantages

• Limited to lower power handling compared to larger TVS diode packages
• May require additional circuitry for overvoltage protection in high-power applications

Working Principles

The SMBJ78C operates by diverting excessive transient current away from sensitive components when the voltage exceeds the specified level. It achieves this through rapid conduction and clamping of the transient voltage to a safe level, thereby safeguarding the connected circuitry.

Detailed Application Field Plans

The SMBJ78C is commonly employed in various applications, including: - Telecommunication Equipment: Protects communication devices from voltage surges - Industrial Control Systems: Safeguards control electronics from transient events - Automotive Electronics: Shields automotive systems from voltage transients - Consumer Electronics: Ensures protection for sensitive electronic devices

Detailed and Complete Alternative Models

Some alternative TVS diode models that can be considered as alternatives to the SMBJ78C include: - P6SMBJ78CA: Similar specifications with a different package (SMB) - SMBJ78A: Lower power handling but compatible with certain applications - SMBJ78CA: Higher surge capability for more demanding environments

In conclusion, the SMBJ78C transient voltage suppressor diode offers effective protection against voltage spikes and transients in a compact SMB package. Its fast response time, low clamping voltage, and high surge capability make it suitable for a wide range of electronic applications.

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