Andrew
Andrew Content Marketer
On Jul 28, 2025

SMAJ28CA ESD Suppressors / TVS Diodes by Formosa – Trusted Surge Protection in Compact Form

In today’s advanced electronics landscape, even the smallest surge or ESD strike can cause serious damage. The ESD Suppressors / TVS Diodes SMAJ28CA by Formosa are engineered to prevent such failures, offering superior circuit protection in a compact and efficient form factor. Whether used in communication interfaces, automotive electronics, or industrial controllers, these diodes are designed for rapid response and long-term reliability.

Known for their dependable build quality and compliance with global safety standards, the ESD Suppressors / TVS Diodes by Formosa are a go-to solution for engineers and OEMs requiring effective transient voltage suppression.


Technical Specifications

  • Manufacturer: Formosa

  • Part Number: SMAJ28CA

  • Category: Circuit Protection, ESD Suppressors / TVS Diodes by Formosa

  • Polarity: Bidirectional

  • Stand-Off Voltage: 28V

  • Breakdown Voltage: 31.1V – 34.4V

  • Clamping Voltage: 45.4V

  • Peak Pulse Power (10/1000µs): 400W

  • Mounting Style: Surface Mount (DO-214AC / SMA)

  • Compliance: RoHS, Lead-Free

With a balance of fast action and high power dissipation, ESD Suppressors / TVS Diodes by Formosa provide excellent circuit protection in diverse applications.


Key Features

  • 400W peak pulse capability

  • Fast response time (< 1ps)

  • Bidirectional voltage clamping

  • Space-saving DO-214AC (SMA) package

  •  RoHS compliant and halogen-free

The robust protection offered by ESD Suppressors / TVS Diodes by Formosa minimizes the risks associated with high-speed data lines and sensitive power rails.


Applications

  • USB, HDMI, Ethernet, and DisplayPort lines

  • CAN/LIN bus systems in automotive electronics

  • Industrial automation and smart sensors

  • Power supplies, routers, and smart meters

  • IoT devices and embedded systems

Wherever high-speed interfaces exist, ESD Suppressors / TVS Diodes by Formosa provide compact and effective circuit protection.


Industry Use Case

Problem: A global networking OEM experienced port failures in their routers due to transient overvoltage.

Solution: They integrated SMAJ28CA ESD Suppressors / TVS Diodes by Formosa at all I/O ports.

Outcome: System reliability improved, service costs were reduced, and product returns dropped significantly.


Download Datasheet

[Access SMAJ28CA Datasheet – Available on Xon Electronics]


Buy Now at Xonelec

  • 100% authentic ESD Suppressors / TVS Diodes by Formosa
  • Fast global shipping to USA, India, Australia, Europe & more
  • Ready-to-ship inventory
  • Secure checkout with volume discounts
  • Visit: www.xonelec.com

Conclusion

The SMAJ28CA ESD Suppressors / TVS Diodes by Formosa are an optimal choice for protecting modern electronics from ESD and transients. With their high surge capacity, bidirectional clamping, and compact size, they enable robust circuit protection across a wide range of industrial and consumer applications. Purchase now from Xonelec and enjoy worldwide delivery, including to the USA, India, Australia, Europe, and other countries.


FAQs – SMAJ28CA by Formosa

Q1. Are the diodes suitable for automotive applications?
Yes, they're ideal for CAN/LIN and other vehicle communication lines.

Q2. Is the diode RoHS compliant?
Yes, it meets all major global environmental safety standards.

Q3. Can it protect USB and HDMI ports?
Absolutely—it’s designed for high-speed signal lines.

Q4. What makes it bidirectional?
It suppresses both positive and negative transient voltages symmetrically.

Q5. Does Xon Electronics ship internationally?
Yes, we ship across the USA, India, Australia, Europe, and many other countries.




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