SMBJ54CAHE3/5B

Product Overview

The SMBJ54CAHE3/5B belongs to the category of transient voltage suppressor diodes (TVS diodes). These diodes are widely used for protecting sensitive electronic components from voltage spikes and transients. The SMBJ54CAHE3/5B is known for its high reliability, fast response time, and compact package, making it suitable for a wide range of applications. It is available in a surface mount DO-214AA package and is designed to provide effective protection against overvoltage events.

Basic Information

• Category: Transient Voltage Suppressor Diode
• Use: Protection against voltage spikes and transients
• Characteristics: Fast response time, high reliability
• Package: DO-214AA (SMB)
• Essence: Provides robust overvoltage protection
• Packaging/Quantity: Available in tape and reel packaging, quantity varies based on supplier

Specifications

• Voltage - Reverse Standoff (Typ): 48.1V
• Voltage - Breakdown (Min): 53.6V
• Voltage - Clamping (Max) @ Ipp: 77.4V
• Current - Peak Pulse (10/1000µs): 10.3A
• Power - Peak Pulse: 600W
• Type: Zener

Detailed Pin Configuration

The SMBJ54CAHE3/5B follows the standard pin configuration for SMB packages: - Pin 1: Anode - Pin 2: Cathode

Functional Features

• Fast Response Time: The SMBJ54CAHE3/5B offers a rapid reaction to voltage transients, effectively clamping the voltage to protect downstream components.
• High Reliability: This diode is designed for long-term reliability, ensuring continuous protection in demanding environments.
• Compact Design: The SMB package allows for space-efficient PCB layout and integration into various electronic systems.

Advantages and Disadvantages

Advantages

• Effective protection against voltage spikes
• Fast response time
• Compact form factor

Disadvantages

• Limited to specific voltage ranges
• May require additional circuitry for comprehensive surge protection

Working Principles

The SMBJ54CAHE3/5B operates based on the principle of Zener breakdown. When the voltage across the diode exceeds the breakdown voltage, it conducts heavily, diverting excess current away from the protected circuitry. This action helps to limit the voltage across the load, preventing damage due to transient events.

Detailed Application Field Plans

The SMBJ54CAHE3/5B finds extensive use in various applications, including: - Telecommunications: Protecting communication equipment from lightning-induced surges and other voltage transients. - Automotive Electronics: Safeguarding sensitive automotive electronics from voltage spikes caused by load dumps and other electrical disturbances. - Industrial Control Systems: Providing overvoltage protection for PLCs, motor drives, and other critical industrial control equipment.

Detailed and Complete Alternative Models

• P6KE51CA: Similar TVS diode with a different package and slightly varying specifications.
• 1.5KE56CA: Higher power handling capability compared to SMBJ54CAHE3/5B, suitable for applications with higher surge energy requirements.
• SMAJ58CA: Surface mount diode with similar characteristics, offering flexibility in design and layout.

In conclusion, the SMBJ54CAHE3/5B transient voltage suppressor diode offers reliable and efficient protection against voltage transients, making it an essential component in various electronic systems.

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