11/24/2025 6:37:09 AM   By  Symond  in


SMAJ15A ESD Protection Diodes / TVS Diodes by Littelfuse – Reliable Transient Protection for Sensitive Electronics

The ESD Protection Diodes / TVS Diodes SMAJ15A by Littelfuse are designed to provide strong defense against voltage spikes, electrostatic discharge, and transient surge events. As a part of the bold Circuit Protection, ESD Protection Diodes / TVS Diodes family, the SMAJ15A offers ultra-fast clamping response, high surge power capability, and exceptional reliability for both industrial and consumer-grade electronics.

Now available worldwide at www.xonelec.com.


Technical Specifications of SMAJ15A

  • Manufacturer: Littelfuse

  • Part Number: SMAJ15A

  • Category: Circuit Protection, ESD Protection Diodes / TVS Diodes

  • Stand-Off Voltage: 15V

  • Breakdown Voltage: 16.7V (typical)

  • Clamping Voltage: ~24.4V

  • Peak Pulse Power: 400W

  • Polarity: Unidirectional

  • Package: SMA (DO-214AC)

  • Response Time: <1 picosecond

  • High reliability for transient-heavy environments


Key Features of SMAJ15A

  • Fast transient response for superior ESD Protection Diodes / TVS Diodes performance

  • 400W peak pulse capability for robust surge protection

  • Unidirectional design for stable DC line protection

  • SMA package ideal for compact layouts

  • Low dynamic resistance for efficient Circuit Protection

  • Trusted Littelfuse surge suppression technology


Applications of SMAJ15A

  • Industrial automation and control electronics

  • SMPS and AC/DC power supplies

  • Telecommunication lines (RS-485, CAN, Ethernet)

  • Automotive modules and vehicle electronics

  • Microcontroller & sensor input protection


Wiring and Connection Overview

  • Unidirectional diode structure for stable protection

  • SMA (DO-214AC) package suited for automated reflow

  • Cathode marking for precise orientation

  • Ideal for space-limited PCBs requiring Circuit Protection

  • Excellent clamping performance for ESD Protection Diodes / TVS Diodes


Use Case Scenario – Safeguarding Power Supply Modules

Problem: Power supply modules are highly vulnerable to unexpected transient surges and ESD strikes.
Solution: Engineers integrate the SMAJ15A ESD Protection Diodes / TVS Diodes by Littelfuse to shield sensitive nodes.
Result: Stronger noise immunity, improved equipment durability, and adherence to modern Circuit Protection requirements.


Download Datasheet for SMAJ15A

The full electrical characteristics and curve graphs are available in the SMAJ15A datasheet on XON Electronics.


Also Available from Other Manufacturers

You can also find equivalent ESD Protection Diodes / TVS Diodes from:

These manufacturers support a wide range of Circuit Protection, ESD Protection Diodes / TVS Diodes needs.


Why Buy SMAJ15A from XON Electronics?

  • Extensive selection of ESD Protection Diodes / TVS Diodes

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

  • Genuine Littelfuse components only

  • Affordable pricing & bulk order support

  • Trusted sourcing through x-on electronics


FAQs – SMAJ15A TVS Diode

Q1: Is SMAJ15A unidirectional?
Yes, it is a unidirectional TVS diode.

Q2: What is its peak pulse rating?
400W.

Q3: Can SMAJ15A protect communication lines?
Yes, ideal for CAN, RS-485, Ethernet, and similar interfaces.

Q4: Is the response time fast enough for ESD?
Absolutely—sub-picosecond response.

Q5: What package does SMAJ15A come in?
SMA (DO-214AC).


Conclusion

The SMAJ15A ESD Protection Diodes / TVS Diodes by Littelfuse deliver a dependable and high-performance solution for safeguarding sensitive electronics from surges and ESD. As part of the bold Circuit Protection, ESD Protection Diodes / TVS Diodes category, SMAJ15A remains a preferred choice for industrial, automotive, telecom, and consumer applications.
Order globally from xon electronics.


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