SMAJ58A ESD Protection Diodes / TVS Diodes by Littelfuse
Introduction
The SMAJ58A by Littelfuse is a highly reliable unidirectional ESD Protection Diode / TVS Diode designed to protect sensitive electronic systems against high-energy voltage spikes, electrical transients, and ESD events. As part of the Littelfuse SMAJ series, it delivers excellent performance in modern Circuit Protection applications spanning industrial, telecom, and automotive electronics.
For more components, visit www.xonelec.com.
Technical Specifications
Electrical Parameters
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Manufacturer: Littelfuse
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Part Number: SMAJ58A
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Device Type: ESD Protection Diodes / TVS Diodes
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Reverse Stand-Off Voltage (VR): 58V
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Breakdown Voltage (VBR): 64.4V – 71.2V
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Clamping Voltage: ~95V
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Peak Pulse Power: 400W
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Peak Pulse Current: 4.2A
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Polarity: Unidirectional
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Package: DO-214AC (SMA)
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Category: Circuit Protection, Surge Suppression, TVS Devices
Engineered for stability, the SMAJ58A ensures powerful suppression of damaging transient events.
Key Features
Why SMAJ58A Is a Popular Choice
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Fast response to transient surges
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400W peak pulse power handling
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Low leakage current for long-term reliability
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Compact SMA package for space-limited PCB designs
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Ideal for Circuit Protection in demanding electrical environments
Due to its durability, the SMAJ58A is widely trusted in ESD Protection Diodes / TVS Diodes applications.
Applications
Typical Use Cases
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Industrial automation and control systems
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High-voltage communication interfaces
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Automotive electronics & sensor modules
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Consumer electronics, power tools, and smart devices
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AC/DC power lines and low-voltage power rails
The SMAJ58A offers stable and consistent Circuit Protection in all these environments.
Wiring and Connection Overview
How to Connect the SMAJ58A
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Install the diode across the protected DC rail or signal line
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Observe correct polarity (unidirectional model)
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Suitable for high-speed PCBs and compact layouts
This ensures immediate and effective ESD and surge suppression.
Use Case Scenario
Real Application Example
A manufacturer of industrial power measurement modules faced repeated failures due to high-voltage transients in field installations. Switching to the SMAJ58A provided stronger clamping capability and faster response times, leading to significant improvements in system reliability and long-term ESD Protection Diodes / TVS Diodes performance.
Download Datasheet
You can download the complete Littelfuse SMAJ58A datasheet from
www.xonelec.com for electrical curves, mechanical details, and thermal characteristics.
Also Available from Other Manufacturers
Equivalent ESD Protection Diodes / TVS Diodes and Circuit Protection alternatives are also available from:
Why Buy from XON Electronics?
Your Reliable Global Component Supplier
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100% original Littelfuse and brand-name semiconductor components
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Global delivery to USA, India, Australia, Europe & worldwide
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Competitive pricing for OEMs and distributors
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Easy ordering process and secure transactions
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Huge stock of Circuit Protection and TVS diode parts
Buy SMAJ58A or browse similar parts now at
www.xonelec.com.
FAQs – SMAJ58A Littelfuse TVS Diode
Q1. What type of protection does SMAJ58A provide?
It protects against ESD events, high-energy surges, and fast transient voltages.
Q2. Is SMAJ58A unidirectional?
Yes, the SMAJ58A is a unidirectional TVS diode.
Q3. What is its pulse handling capability?
It supports up to 400W peak pulse power.
Q4. To which category does it belong?
It falls under Circuit Protection and ESD Protection Diodes / TVS Diodes.
Q5. Where can I purchase it globally?
You can buy it from www.xonelec.com with shipping to USA, India, Australia, Europe & more.
Conclusion
The SMAJ58A by Littelfuse is a strong and reliable ESD Protection Diode / TVS Diode, engineered to withstand high transient voltages and deliver dependable protection across industrial, telecom, automotive, and consumer applications. Its fast response and rugged construction make it a top choice for engineers needing advanced Circuit Protection.
Available now at www.xonelec.com with worldwide shipping to USA, India, Australia, Europe, and other countries