SMBJ28A-TR: A High-Performance TVS Diode for Superior Circuit Protection

In today's fast-paced electronics industry, safeguarding sensitive components from voltage transients is critical. The SMBJ28A-TR from STMicroelectronics stands as a premier choice for engineers seeking reliable transient voltage suppression (TVS) solutions. This comprehensive guide explores its features, benefits, and applications to help you make informed decisions for your circuit protection needs.

In-Depth Product Analysis

The SMBJ28A-TR belongs to STMicroelectronics' renowned line of circuit protection devices, specifically designed for robust transient voltage suppression. As an active component in the TVS diodes category, it offers exceptional performance in demanding environments.

Technical Specifications Breakdown

• Manufacturer Part Number: SMBJ28A-TR
• Manufacturer: STMicroelectronics
• Detailed Description: TVS DIODE 28VWM 45.4VC SMB
• Diode Type: Zener (Unidirectional)
• Channels: 1 unidirectional channel

Advanced Voltage Protection Features

The SMBJ28A-TR excels in voltage regulation with:

• Reverse Standoff Voltage: 28V (Typical)
• Minimum Breakdown Voltage: 31.1V
• Maximum Clamping Voltage: 45.4V @ Ipp

These specifications ensure that the diode activates precisely when needed, providing optimal protection against voltage spikes while maintaining circuit integrity during normal operation.

Power Handling Capabilities

Engineers will appreciate the SMBJ28A-TR's impressive power management:

• Peak Pulse Current: 13.8A (10/1000 s)
• Peak Pulse Power: 600W
• Excellent Energy Absorption: Capable of handling significant transient events

Application-Specific Advantages

Versatile Use Cases

The SMBJ28A-TR finds applications in numerous fields:

• Power supply protection
• Telecommunications equipment
• Industrial control systems
• Automotive electronics
• Consumer electronics

Environmental Resilience

With an operating temperature range of -55 C to 150 C (TJ), this TVS diode performs reliably in extreme conditions, making it suitable for:

• Outdoor equipment
• Automotive under-hood applications
• Industrial environments
• Aerospace systems

Installation and Integration

Packaging and Mounting

• Package Type: DO-214AA, SMB
• Mounting Style: Surface Mount Technology (SMT)
• Supplier Device Package: SMB (DO-214AA)

The compact SMB package enables:

• Space-efficient PCB design
• Automated assembly processes
• High-density circuit layouts

Comparative Advantages

When compared to similar TVS diodes, the SMBJ28A-TR offers:

• Superior clamping performance
• Lower leakage current
• Faster response time to transients
• More consistent breakdown characteristics

Design Considerations

For optimal performance with the SMBJ28A-TR:

• Ensure proper PCB layout for thermal management
• Consider parallel configurations for higher current applications
• Implement proper grounding techniques
• Account for derating at elevated temperatures

Industry Compliance and Reliability

The SMBJ28A-TR meets stringent industry standards for:

• ESD protection
• Surge immunity
• Long-term reliability

Purchasing and Availability

As an active component, the SMBJ28A-TR is readily available through authorized distributors. Bulk pricing options are available for high-volume applications.

Conclusion

The SMBJ28A-TR from STMicroelectronics represents the pinnacle of TVS diode technology, offering unmatched protection against voltage transients in a compact, surface-mount package. Its combination of precise voltage characteristics, high power handling, and broad operating temperature range makes it an ideal choice for virtually any circuit protection application.

For engineers designing robust electronic systems, the SMBJ28A-TR provides:

• Reliable protection against damaging voltage spikes
• Consistent performance across environmental conditions
• Easy integration into modern PCB designs
• Cost-effective circuit protection solution

Explore our online store to purchase the SMBJ28A-TR and enhance your circuit protection strategy today. For technical support or application guidance, our team of experts is available to assist with your specific requirements.