11/26/2025 8:53:48 AM   By  Symond  in


SMBJ28A ESD Protection Diodes / TVS Diodes by Littelfuse – Robust 600W Surge Protection for Industrial Electronics

The ESD Protection Diodes / TVS Diodes SMBJ28A by Littelfuse deliver strong, fast-response surge suppression for sensitive electronics exposed to ESD, lightning-induced spikes, and transient surges. As a key part of the Circuit Protection, ESD Protection Diodes / TVS Diodes category, the SMBJ28A ensures reliable clamping performance, fast action, and durable operation in communication, industrial, consumer, and automotive systems.

Available for global delivery at www.xonelec.com.


Technical Specifications of SMBJ28A

  • Manufacturer: Littelfuse

  • Part Number: SMBJ28A

  • Category: ESD Protection Diodes / TVS Diodes

  • Polarity: Unidirectional

  • Stand-Off Voltage: 28V

  • Breakdown Voltage: 31.1V (typical)

  • Clamping Voltage: ~45.4V

  • Peak Pulse Power: 600W

  • Package: DO-214AA (SMBJ)

  • Response Time: <1 picosecond


Key Features of SMBJ28A

  • Ultra-fast suppression for bold ESD Protection Diodes / TVS Diodes

  • 600W peak pulse capability for rugged Circuit Protection

  • Unidirectional design for precision clamping

  • SMBJ package offers compact, thermally efficient design

  • Strong reliability across industrial, telecom, and automotive sectors

  • Littelfuse quality ensures long-term performance stability


Applications of SMBJ28A

  • Industrial automation and process control

  • Communication interfaces (Ethernet, RS-485, CAN, UART)

  • Power supplies and SMPS circuits

  • Consumer electronics

  • Automotive electronics and board-level protection

  • Sensitive IC and microcontroller input protection


Wiring and Connection Overview

  • SMBJ package supports reflow soldering

  • Unidirectional design ensures correct polarity clamping

  • Fast response ideal for data and power line protection

  • Compact size fits modern Circuit Protection layouts

  • A dependable choice for bold ESD Protection Diodes / TVS Diodes designs


Use Case Scenario – Protecting Industrial Communication Ports

Problem: Communication ports in industrial devices often face transient surges and ESD hits that can damage transceivers.
Solution: The SMBJ28A ESD Protection Diodes / TVS Diodes by Littelfuse clamp high-energy voltage spikes before they reach the sensitive circuitry.
Result: Improved system stability, reduced downtime, and strong bold Circuit Protection performance.


Download Datasheet for SMBJ28A

The full datasheet containing electrical, thermal, and clamping specifications is available at XON Electronics.


Also Available from Other Manufacturers

Alternatives to the SMBJ28A are available from:

These brands support a wide selection of bold Circuit Protection, ESD Protection Diodes / TVS Diodes.


Why Buy SMBJ28A from XON Electronics?

  • 100% original Littelfuse components

  • Global shipping to USA, India, Australia, Europe & more

  • Competitive bulk and wholesale pricing

  • Extensive inventory of TVS Diodes and Circuit Protection devices

  • Trusted sourcing from x-on electronics


FAQs – SMBJ28A TVS Diode

Q1: What is the peak pulse power rating?
600W.

Q2: Is SMBJ28A unidirectional or bidirectional?
Unidirectional.

Q3: Can it be used for communication ports?
Yes, ideal for protecting RS-485, CAN, Ethernet, and other interfaces.

Q4: What package does it use?
SMBJ (DO-214AA).

Q5: What makes it suitable for ESD protection?
Its ultra-fast clamping response (<1 ps).


Conclusion

The SMBJ28A ESD Protection Diodes / TVS Diodes by Littelfuse provide powerful, fast-acting surge suppression suitable for industrial, automotive, telecom, and consumer markets. As part of the bold Circuit Protection, ESD Protection Diodes / TVS Diodes segment, the SMBJ28A offers excellent reliability and stable clamping performance.
Order today from xon electronics.


Copyright ©2025  X-ON Electronic Services. All rights reserved.