Andrew
Andrew Content Marketer
On Jul 28, 2025

SMAJ28CA ESD Suppressors / TVS Diodes by DOWO – Compact Surge Protection for Sensitive Electronics

Electrostatic discharge and voltage transients are major threats to today’s sensitive electronics. The ESD Suppressors / TVS Diodes SMAJ28CA by DOWO deliver reliable and fast-acting circuit protection, ensuring long-term performance and device safety. These bidirectional diodes are a must-have for industrial, automotive, and telecom systems.

Engineered for space-constrained designs and surface-mount applications, the ESD Suppressors / TVS Diodes by DOWO are perfect for safeguarding data lines, microcontrollers, and other critical components from voltage spikes.


Technical Specifications

  • Brand: DOWO

  • Part Number: SMAJ28CA

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

  • Polarity: Bidirectional

  • Stand-Off Voltage: 28V

  • Breakdown Voltage: 31.1V to 34.4V

  • Clamping Voltage: 45.4V

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

  • Mounting Type: Surface Mount (SMA package)

  • Compliance: RoHS, Lead-Free

With sub-nanosecond response and consistent clamping performance, ESD Suppressors / TVS Diodes by DOWO offer dependable circuit protection where it matters most.


Key Features

  • 400W peak power rating

  • Bidirectional voltage suppression

  • Fast clamping response

  • Compact DO-214AC (SMA) footprint

  • Ideal for space-saving PCB designs

Designed for reliability and endurance, ESD Suppressors / TVS Diodes by DOWO fit seamlessly into both high-speed data and power interface applications.


Applications

  • USB, HDMI, and RS-485/RS-232 ports

  • Automotive ECUs and CAN/LIN bus lines

  • Industrial automation and robotics

  • Smart meters and telecom devices

  • Consumer electronics and wearables

In every setting, ESD Suppressors / TVS Diodes by DOWO reinforce your system’s circuit protection strategy.


Use Case: ESD Defense in Telecom Switchgear

Scenario: A telecom provider encountered repeated equipment resets due to voltage transients during lightning storms.

Solution: Engineers added SMAJ28CA ESD Suppressors / TVS Diodes by DOWO across vulnerable ports.

Result: System outages decreased, ensuring uninterrupted service and compliance with surge immunity standards.


Download Datasheet

[Download SMAJ28CA Datasheet – Available on Xon Electronics]


Purchase Now at Xon Electronics

  • Original ESD Suppressors / TVS Diodes by DOWO
  • Delivery to USA, India, Australia, Europe & other regions
  • Ready stock for global dispatch
  • Safe, secure checkout on www.xonelec.com

Conclusion

The SMAJ28CA ESD Suppressors / TVS Diodes by DOWO offer efficient, compact, and fast-response circuit protection for your sensitive electronic applications. Whether you're building for industrial automation or consumer electronics, DOWO’s diode delivers superior protection against ESD and surge events. Shop now with global delivery to the USA, India, Australia, Europe, and more from Xon Electronics.


FAQs – SMAJ28CA by DOWO

Q1. Are these diodes RoHS compliant?
Yes, they are RoHS and lead-free certified.

Q2. Can this be used for automotive CAN bus protection?
Absolutely, they support automotive-grade requirements.

Q3. Is the clamping bidirectional?
Yes, ideal for both positive and negative voltage spikes.

Q4. Are they suitable for HDMI and USB ports?
Yes, perfect for high-speed interfaces and low-capacitance protection.

Q5. Do you ship worldwide?
Yes! We ship to the USA, India, Australia, Europe, and many more countries.




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