Andrew
Andrew Content Marketer
On Jul 25, 2025

SMAJ28CA ESD Suppressors / TVS Diodes by amsem – Reliable Circuit Protection for Voltage Transients

The ESD Suppressors / TVS Diodes SMAJ28CA  by amsem offer high-performance transient voltage suppression in a compact and robust package. Designed to protect sensitive electronics from electrostatic discharge (ESD), lightning surges, and other transient voltage events, these bidirectional TVS diodes are essential components for ensuring long-term device stability. As a trusted solution in the circuit protection category, ESD Suppressors / TVS Diodes by amsem deliver fast response times and reliable clamping characteristics.

In this blog, we’ll walk through its key specifications, major features, application areas, connection method, and a real-world use case. Plus, we’ll show you how to buy it globally from Xon Electronics.


Technical Specifications of SMAJ28CA

  • Manufacturer: amsem

  • Part Number: SMAJ28CA

  • Type: Bidirectional TVS Diode

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

  • Reverse Standoff Voltage (VR): 28V

  • Clamping Voltage (VC): 45.4V

  • Peak Pulse Current (IPP): 6.6A (8/20µs waveform)

  • Peak Pulse Power (PPP): 400W

  • Response Time: <1 picosecond

  • Package Type: DO-214AC (SMA)

  • Polarity: Bidirectional

  • Mounting Style: Surface Mount

Engineered for fast suppression and reliable operation, this diode is a must-have in every designer’s circuit protection toolkit.


Key Features of SMAJ28CA

  • Bidirectional Protection – Ideal for protecting both signal directions

  • 400W Peak Power Rating – High-energy absorption capability

  • Fast Response Time – <1 picosecond response for instant protection

  • Surface-Mount Package – Compact DO-214AC for space-saving PCBs

  • RoHS Compliant – Environmentally safe and globally accepted

These features make the SMAJ28CA ESD Suppressors / TVS Diodes by amsem a preferred choice for sensitive electronic systems across industrial and consumer applications.


Applications of SMAJ28CA

The SMAJ28CA ESD Suppressors / TVS Diodes by amsem are widely used in:

  • Industrial Equipment & Automation

  • Power Supply Lines

  • Communication Interfaces (RS-232, USB, CAN, Ethernet)

  • Consumer Electronics

  • Telecom Infrastructure

  • Embedded Systems & IoT Devices

From production lines to portable devices, these TVS diodes deliver solid defense against destructive voltage spikes.


Wiring and Connection Overview

Typical integration of the SMAJ28CA includes:

  • Across Signal or Power Lines: Bidirectional protection is ideal for symmetric data lines

  • PCB Pads: Soldered to standard SMA (DO-214AC) footprint

  • No Polarity Concerns: Thanks to bidirectional design

This makes it easy to implement effective circuit protection without redesigning existing layouts.


Use Case Scenario: Surge Protection in Telecom Base Station

Scenario: A telecom manufacturer needed compact, reliable surge protection for a new 5G base station design.

Problem: Voltage spikes from external interference damaged key logic components.

Solution: The SMAJ28CA ESD Suppressors / TVS Diodes by amsem offered rapid response and high power clamping.

Result: Dramatic reduction in component failures, improved system uptime, and enhanced network reliability.

This shows how ESD Suppressors / TVS Diodes by amsem protect mission-critical circuits in harsh environments.


Download SMAJ28CA Datasheet

Need clamping curves, thermal data, or IEC test results?

[Download SMAJ28CA Datasheet from Xon Electronics]


Why Buy from Xon Electronics?

Xon Electronics offers a wide range of ESD Suppressors / TVS Diodes by amsem, including:

  • 100% Original amsem Components
  • Global Delivery – USA, India, Australia, Europe & more
  • Volume Pricing for OEMs and Integrators
  • Technical Support for Circuit Designers
  • Safe & Reliable Checkout Process

Order now from www.xonelec.com – your go-to source for circuit protection components.


Conclusion

The SMAJ28CA ESD Suppressors / TVS Diodes by amsem provide robust and efficient protection against high-energy transients. Whether you're working on industrial electronics, telecom, or embedded systems, these TVS diodes are your frontline defense against surges. Now available worldwide from Xon Electronics, shipping to USA, India, Australia, Europe, and other global markets.


FAQs – SMAJ28CA by amsem

Q1. What is the clamping voltage of SMAJ28CA?
It clamps at 45.4V for a 28V reverse standoff.

Q2. Is this a unidirectional or bidirectional TVS diode?
It is a bidirectional diode for dual-line protection.

Q3. What package is the SMAJ28CA available in?
It comes in a DO-214AC (SMA) surface-mount package.

Q4. What are the ideal applications for this diode?
Used in telecom, power supplies, communication lines, and consumer electronics.

Q5. Can I order this product globally?
Yes, it’s available at www.xonelec.com with delivery to USA, India, Australia, Europe, and other regions.




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