SMBJ28A-HRA

Product Overview

The SMBJ28A-HRA belongs to the category of transient voltage suppressor diodes (TVS diodes). These diodes are widely used to protect sensitive electronic components from voltage spikes and transient surges. The SMBJ28A-HRA is designed to provide robust protection for various electronic circuits and devices. It offers characteristics such as high surge capability, low clamping voltage, and fast response time. The diode is typically available in a compact package and is offered in various packaging options, including tape and reel, making it suitable for automated assembly processes.

Basic Information

• Category: Transient Voltage Suppressor Diode (TVS Diode)
• Use: Protection against voltage spikes and transient surges
• Characteristics: High surge capability, low clamping voltage, fast response time
• Package: SMB (DO-214AA)
• Essence: Robust protection for electronic circuits
• Packaging/Quantity: Available in tape and reel packaging, quantity varies based on supplier

Specifications

• Voltage - Reverse Standoff (Typ): 28V
• Voltage - Breakdown (Min): 31.1V
• Voltage - Clamping (Max) @ Ipp: 45.4V
• Current - Peak Pulse (10/1000µs): 22.6A
• Power - Peak Pulse: 600W
• Type: Unidirectional

Detailed Pin Configuration

The SMBJ28A-HRA TVS diode typically features a two-pin configuration, with the anode and cathode terminals clearly marked for easy integration into circuit designs.

Functional Features

• Transient Voltage Suppression: Effectively clamps transient overvoltage to protect downstream components.
• Fast Response Time: Rapid reaction to voltage spikes ensures minimal impact on the protected circuitry.
• High Surge Capability: Capable of withstanding high surge currents, enhancing overall system reliability.

Advantages and Disadvantages

Advantages

• Effective protection against voltage transients
• Fast response time
• Compact form factor for space-constrained applications

Disadvantages

• Limited to unidirectional protection
• May require additional components for bidirectional protection

Working Principles

The SMBJ28A-HRA operates by diverting excess transient voltage away from sensitive components, thereby limiting the voltage across the protected circuit. When a transient surge occurs, the diode rapidly conducts, providing a low-impedance path for the surge current and effectively clamping the voltage to a safe level.

Detailed Application Field Plans

The SMBJ28A-HRA is commonly employed in a wide range of applications, including: - Telecommunications: Protecting communication equipment from lightning-induced surges. - Automotive Electronics: Safeguarding vehicle electronics from voltage transients. - Industrial Control Systems: Ensuring reliable operation of control and monitoring systems in industrial environments. - Consumer Electronics: Protecting sensitive electronic devices such as smartphones, tablets, and laptops from power surges.

Detailed and Complete Alternative Models

• SMBJ26A-HRA: Similar specifications with a lower reverse standoff voltage of 26V.
• SMBJ30A-HRA: Higher reverse standoff voltage of 30V with comparable characteristics.

In conclusion, the SMBJ28A-HRA transient voltage suppressor diode offers robust protection against voltage spikes and transient surges, making it an essential component in various electronic systems and devices.

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