SMBJ20A-E3/5B

Product Overview

The SMBJ20A-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 SMBJ20A-E3/5B is typically packaged in a compact SMB package and is available in various packaging quantities to suit different application requirements.

Basic Information

• Category: Transient Voltage Suppressor Diode
• Use: Surge protection in electronic circuits
• Characteristics: Rapid response to overvoltage events, high current handling capability
• Package: SMB
• Essence: Protection of sensitive electronic components from voltage surges
• Packaging/Quantity: Available in tape and reel packaging with varying quantities

Specifications

• Voltage - Reverse Standoff (Typ): 20V
• Voltage - Breakdown (Min): 22.2V
• Voltage - Clamping (Max) @ Ipp: 32.4V
• Current - Peak Pulse (10/1000µs): 34.4A
• Power - Peak Pulse: 600W
• Type: Zener

Detailed Pin Configuration

The SMBJ20A-E3/5B TVS diode has a standard pin configuration with two leads for connection to the circuit. The anode and cathode terminals are clearly marked for easy identification and proper installation.

Functional Features

• Fast Response Time: The SMBJ20A-E3/5B offers a fast response time to transient overvoltage events, providing effective protection to downstream components.
• High Current Handling: With a peak pulse current rating of 34.4A, this TVS diode can effectively handle high surge currents without degradation.

Advantages and Disadvantages

Advantages

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

Disadvantages

• Limited voltage clamping compared to some higher-rated TVS diodes
• May require additional circuitry for comprehensive surge protection in high-energy environments

Working Principles

The SMBJ20A-E3/5B operates based on the principle of Zener breakdown, where it rapidly conducts excess current when the voltage across its terminals exceeds the breakdown voltage. This action effectively diverts the surge current away from the protected circuit, preventing damage to sensitive components.

Detailed Application Field Plans

The SMBJ20A-E3/5B is widely used in various electronic systems and equipment requiring surge protection. Some common application fields include: - Power supply units - Communication equipment - Industrial control systems - Automotive electronics - Consumer electronics

Detailed and Complete Alternative Models

• SMBJ15A-E3/5B: Similar TVS diode with lower voltage rating
• SMBJ30A-E3/5B: Similar TVS diode with higher voltage rating
• SMBJ20CA-E3/5B: TVS diode with similar characteristics but in a different package

In conclusion, the SMBJ20A-E3/5B transient voltage suppressor diode offers effective surge protection for a wide range of electronic applications, making it an essential component in safeguarding sensitive circuits from damaging voltage transients.

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