SMAJ28CA ESD Suppressors / TVS Diodes by Tokmas – Robust Circuit Protection for Sensitive Electronics
The ESD Suppressors / TVS Diodes SMAJ28CA by Tokmas are bidirectional transient voltage suppression devices engineered to protect electronic circuits from voltage spikes, ESD, and surge transients. With a working voltage of 28V and peak pulse power handling of 400W, these diodes are perfect for industrial control systems, consumer electronics, automotive ECUs, and communication interfaces.
In this blog, we explore the technical specifications, unique features, common applications, wiring approach, and why Xon Electronics is the ideal destination to source these top-tier Circuit Protection, ESD Suppressors / TVS Diodes by Tokmas.
Technical Specifications of SMAJ28CA
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Manufacturer: Tokmas Devices
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Part Number: SMAJ28CA
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Type: TVS Diode – Bidirectional
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Reverse Stand-Off Voltage (VR): 28V
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Breakdown Voltage (VBR): 31.1V to 34.4V
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Clamping Voltage (VC): 45.4V (Max)
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Peak Pulse Current (IPP): 8.8A
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Peak Pulse Power Dissipation: 400W (10/1000µs waveform)
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Response Time: < 1 picosecond
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Package Type: DO-214AC (SMA)
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Category: Circuit Protection, ESD Suppressors / TVS Diodes by Tokmas
Designed to react instantly to overvoltage events, these diodes ensure reliable protection in harsh environments and sensitive circuit boards.
Key Features of SMAJ28CA Diodes
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Bidirectional TVS Design – Protects both signal lines and power rails
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High Peak Power (400W) – Manages severe surge events efficiently
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Fast Response Time – Sub-nanosecond clamping protects against fast ESD pulses
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Compact SMA Package – Suitable for high-density PCB layouts
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RoHS Compliant – Environmentally responsible circuit protection solution
These features solidify the SMAJ28CA’s reputation as a go-to device in the Circuit Protection, ESD Suppressors / TVS Diodes by Tokmas product category.
Applications of SMAJ28CA
The SMAJ28CA diode is trusted for high-performance protection in a wide array of electronic systems:
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Industrial Controllers and Sensors
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Automotive ECUs and Battery Modules
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Communication Lines (CAN, RS-485, USB)
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Power Supply Input Protection
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Consumer Electronics – Set-top boxes, smart meters, etc.
Any circuit requiring robust defense against transients will benefit from these Circuit Protection, ESD Suppressors / TVS Diodes by Tokmas.
Wiring and Connection Overview
Typical connection configuration:
[Input Signal Line] — [SMAJ28CA TVS Diode] — [Protected Circuit]
SMAJ28CA is connected between signal line and ground to absorb voltage spikes.
Its bidirectional clamping ensures symmetrical protection for both polarities, making it ideal for AC signal lines or dual-rail systems.
Use Case Scenario: Protecting RS-485 Interface in Harsh Environments
Scenario: An industrial automation company experienced frequent RS-485 communication failures due to nearby lightning-induced surges.
Problem: Standard suppression solutions weren’t fast or strong enough to prevent damage.
Solution: The SMAJ28CA, with its 400W pulse handling and <1ps response, was integrated into the interface protection.
Result: Communication became stable and long-term component reliability improved, showcasing the strength of Circuit Protection, ESD Suppressors / TVS Diodes by Tokmas.
Download Datasheet for SMAJ28CA
Need full technical specs or compliance details?
Download the SMAJ28CA Datasheet from Xon Electronics
Why Buy from Xon Electronics?
Xon Electronics offers a trusted platform to purchase SMAJ28CA and other Circuit Protection, ESD Suppressors / TVS Diodes by Tokmas, with benefits like:
- 100% Authentic Tokmas Products
- Global Shipping – USA, India, Australia, Europe & More
- Bulk Supply & OEM Pricing
- Expert Support for Design Integration
- Secure Online Ordering System
Visit www.xonelec.com to get started.
Conclusion
The SMAJ28CA ESD Suppressors / TVS Diodes by Tokmas are essential components for engineers seeking fast, powerful, and compact transient protection. With superior surge handling, bidirectional clamping, and fast reaction time, they are ideal for modern-day electronics. Whether you're in the USA, India, Australia, or Europe, you can now source the best Circuit Protection, ESD Suppressors / TVS Diodes by Tokmas from Xon Electronics.
FAQs – SMAJ28CA ESD Suppressors / TVS Diodes
Q1. Is the SMAJ28CA unidirectional or bidirectional?
It is a bidirectional TVS diode for protecting both polarities.
Q2. What is its peak pulse power handling?
It can withstand up to 400W (10/1000µs waveform).
Q3. Is this diode RoHS compliant?
Yes, it is fully RoHS compliant and environmentally friendly.
Q4. Can it be used for automotive electronics?
Absolutely. It is ideal for automotive ECUs, sensors, and interfaces.
Q5. Where can I buy SMAJ28CA globally?
You can purchase it directly from www.xonelec.com with shipping to the USA, India, Australia, Europe, and other regions.