SMBJ78CA-E3/5B

Product Overview

The SMBJ78CA-E3/5B belongs to the category of transient voltage suppressor diodes (TVS diodes) and is commonly used for surge protection in electronic circuits. These diodes are characterized by their ability to rapidly respond to overvoltage events, diverting excess current away from sensitive components. The SMBJ78CA-E3/5B is available in a compact package, making it suitable for various applications where space is limited. This TVS diode is designed to provide essential protection for electronic devices against voltage transients and surges.

Basic Information

• Category: Transient Voltage Suppressor Diode
• Use: Surge Protection in Electronic Circuits
• Characteristics: Rapid Response, High Current Diversion Capability
• Package: SMB (DO-214AA)
• Essence: Protecting Sensitive Components from Overvoltage Events
• Packaging/Quantity: Tape & Reel, 3000 units per reel

Specifications

• Voltage - Reverse Standoff (Typ): 78V
• Power (Watts): 600W
• Polarity: Unidirectional
• Breakdown Voltage: 86.7V
• Clamping Voltage: 126V
• Peak Pulse Current: 19.4A
• Operating Temperature Range: -55°C to 150°C

Detailed Pin Configuration

The SMBJ78CA-E3/5B TVS diode has a standard pin configuration with two leads for easy integration into circuit designs. The pinout configuration is as follows: 1. Anode (+) 2. Cathode (-)

Functional Features

• Rapid response to overvoltage events
• High current diversion capability
• Low clamping voltage
• Reliable surge protection for electronic circuits

Advantages and Disadvantages

Advantages

• Effective surge protection for sensitive components
• Compact package for space-constrained applications
• High peak pulse current handling capability

Disadvantages

• Unidirectional protection only
• Limited breakdown voltage compared to some alternative models

Working Principles

The SMBJ78CA-E3/5B TVS diode operates based on the principle of avalanche breakdown. When an overvoltage event occurs, the diode rapidly conducts excess current, diverting it away from the protected circuit. This action helps to limit the voltage across the circuit, preventing damage to sensitive components.

Detailed Application Field Plans

The SMBJ78CA-E3/5B TVS diode finds extensive use in various electronic applications, including: - Power Supplies - Communication Systems - Industrial Control Systems - Automotive Electronics - Consumer Electronics

Detailed and Complete Alternative Models

For applications requiring different specifications or performance characteristics, alternative TVS diode models that can be considered include: - SMAJ78A - P6KE78CA - 1.5SMC78CA

In conclusion, the SMBJ78CA-E3/5B TVS diode offers effective surge protection for electronic circuits, making it a valuable component in diverse applications. Its compact design, high current diversion capability, and rapid response make it a reliable choice for safeguarding sensitive components against overvoltage events. While it has certain limitations, such as unidirectional protection, its advantages outweigh these drawbacks in many scenarios.

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