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On Nov 17, 2025


SMAJ5.0A ESD Protection Diodes / TVS Diodes by Littelfuse – Reliable Unidirectional Surge Protection for Sensitive Electronics

The ESD Protection Diodes / TVS Diodes SMAJ5.0A  by Littelfuse are robust unidirectional transient voltage suppression devices designed to protect sensitive circuits from electrostatic discharge, power surges, inductive switching transients, and lightning-induced voltage spikes. Classified under Circuit Protection, ESD Protection Diodes / TVS Diodes, this diode delivers excellent surge capability and ultra-fast clamping performance.

Now available for worldwide purchase at www.xonelec.com.


Technical Specifications of SMAJ5.0A

  • Manufacturer: Littelfuse

  • Part Number: SMAJ5.0A

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

  • Polarity: Unidirectional

  • Working Voltage (VWM): 5V

  • Breakdown Voltage: 6.4V (typical)

  • Clamping Voltage: ~9.2V

  • Peak Pulse Power: 400W

  • Package Type: SMA (DO-214AC)

  • Response Time: <1 picosecond

This device ensures long-lasting, dependable transient suppression—ideal for sensitive electronic designs.


Key Features of SMAJ5.0A

  • Strong 400W peak pulse power rating

  • Ultra-fast clamping response for effective surge protection

  • Unidirectional design for DC power and signal lines

  • Low dynamic resistance for stable system operation

  • Rugged SMA package for compact PCB layouts

  • Reliable performance for ESD Protection Diodes / TVS Diodes applications in Circuit Protection

These features ensure this Littelfuse part is widely trusted across industries.


Applications of SMAJ5.0A

The SMAJ5.0A ESD Protection Diodes / TVS Diodes by Littelfuse are used in:

  • Power supply protection

  • Microcontroller and logic IC protection

  • Consumer and portable electronics

  • Automotive ECUs and sensor modules

  • Communication interfaces (USB, GPIO, ADC lines)

  • Industrial control equipment

This makes the SMAJ5.0A a must-use device in modern Circuit Protection environments.


Wiring and Connection Overview

  • Unidirectional TVS diode

  • SMA (DO-214AC) SMT package

  • Supports high-speed automated PCB assembly

Ideal for compact, protection-critical ESD Protection Diodes / TVS Diodes solutions.


Use Case Scenario: Power Rail Protection

Problem: A 5V digital system experienced random failures due to repetitive surge events.
Solution: Engineers installed the SMAJ5.0A TVS Diode across the input power line.
Result: Surge-related failures reduced to zero, improving long-term equipment reliability.

A proven choice for stable Circuit Protection in commercial and industrial systems.


Download Datasheet for SMAJ5.0A

The SMAJ5.0A datasheet can be downloaded directly from XON Electronics for detailed specifications.


Also Available from Other Manufacturers

Equivalent ESD Protection Diodes / TVS Diodes are also available from:

SMC Diode

Good-Ark

PROSEMI

Prisemi

Yenji

Vishay

Bourns

Kyocera AVX

EIC Semiconductor

Taiwan Semiconductor

etc.

These alternatives ensure wide compatibility in surge protection designs.


Why Buy SMAJ5.0A from XON Electronics?

  • High-quality Circuit Protection devices in stock

  • Ships to USA, India, Australia, Europe & other global regions

  • Genuine Littelfuse components with competitive pricing

  • Secure and fast ordering process

  • Supported by expert sourcing for hard-to-find semiconductors

Order the SMAJ5.0A TVS Diodes by Littelfuse today at www.xonelec.com.


FAQs – SMAJ5.0A TVS Diodes

Q1: Is SMAJ5.0A unidirectional?
Yes, ideal for protecting DC circuits.

Q2: What is the peak surge power?
400W.

Q3: Does it protect microcontrollers?
Yes, it offers rapid clamping ideal for digital ICs.

Q4: What package does it use?
SMA (DO-214AC).

Q5: Can it be used for consumer electronics?
Yes, widely used in portable and household devices.


Conclusion

The SMAJ5.0A ESD Protection Diodes / TVS Diodes by Littelfuse provide dependable transient suppression with fast response time and rugged protection capability. As a key component in Circuit Protection, ESD Protection Diodes / TVS Diodes, it is ideal for high-reliability electronics used in industrial, automotive, and consumer applications.

Order now from www.xonelec.com.


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