Symond
Symond Content Marketer
On Nov 14, 2025


SMBJ33CA ESD Protection Diodes / TVS Diodes by FOSAN – High-Power Bidirectional Transient Protection for Sensitive Circuits

The ESD Protection Diodes / TVS Diodes SMBJ33CA by FOSAN are powerful surge-handling components designed to safeguard electronic systems from high-energy transients, electrostatic discharge, and lightning-induced surges. As part of the Circuit Protection, ESD Protection Diodes / TVS Diodes family, the SMBJ33CA provides robust, fast protection with high reliability.

You can now order this high-performance diode from www.xonelec.com with fast global delivery.


Technical Specifications of SMBJ33CA

  • Manufacturer: FOSAN

  • Part Number: SMBJ33CA

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

  • Polarity: Bidirectional

  • Working Voltage: 33V

  • Breakdown Voltage: 33V (typ.)

  • Clamping Voltage: ~53.3V

  • Peak Pulse Power: 600W

  • Package: SMB (DO-214AA)

  • Response Time: Ultra-fast

The strong suppression capability of this device makes it a top choice for Circuit Protection engineers worldwide.


Key Features of SMBJ33CA

  • 600W peak pulse surge capability

  • Bidirectional voltage suppression

  • Fast transient response ideal for ESD Protection Diodes / TVS Diodes

  • Low dynamic resistance for stable protection

  • SMB package for compact PCB design

  • Suitable for both AC and DC signal line protection

Each feature ensures reliable overvoltage protection in mission-critical applications.


Applications of SMBJ33CA

The SMBJ33CA ESD Protection Diodes / TVS Diodes by FOSAN are commonly used in:

  • Industrial control & automation systems

  • Automotive ECUs and sensors

  • Power supplies & switching adapters

  • Telecom interfaces (CAN, LIN, RS-485, Ethernet)

  • Consumer electronics & EMI-sensitive circuits

  • Microcontroller I/O surge protection

A perfect device for engineers focused on Circuit Protection system reliability.


Wiring and Connection Overview

  • Bidirectional TVS structure for AC or rapidly changing signals

  • SMB (DO-214AA) surface-mount package

  • Ideal for compact, high-density PCBs

Used extensively in boards requiring high-efficiency ESD Protection Diodes / TVS Diodes.


Use Case Scenario: Telecom Line Surge Protection

Problem: A telecom system experienced surge damage during lightning storms.
Solution: Engineers added the SMBJ33CA TVS Diodes by FOSAN to critical signal lines.
Result: Significant improvement in system resilience and reduced equipment failure.

This highlights why SMBJ33CA is essential in industrial and communication-grade Circuit Protection designs.


Download Datasheet for SMBJ33CA

You can download the complete datasheet for SMBJ33CA directly through XON Electronics.


Also Available from Other Manufacturers

Alternative ESD Protection Diodes / TVS Diodes are also available from the following manufacturers:

JieJie
Good-Ark
MSKSEMI
Youtai
HXY MOS
Jingdao
TWGMC
GOODWORK
Taisko
Juxing Electronic Technology
DOWO
Jinkaisheng
Yongyutai Electronics
Weida Semiconductor
Liown
PAKER Microelectronics
TECH PUBLIC
FTR
amsem
SLKORMICRO
Shikues
SETfuse
SCME
SURGING
SUNMATE
ElecSuper
YFW Electronics
Microdiode Electronics
WPMtek
Yageo
Yangjie
LGE
SEMBO
Bourne
Prisemi
Leiditech
AnBon
Changjing Electronics Technology
SMC Diode
Leshan
Starsea
Ruilongyuan
Tokmas
SINO-IC
Formosa
ZHIDE
SOCAY
PROSEMI
TKS
Littelfuse
Yenji
Polytronics
Lite-On
ON Semiconductor
Bourns
Vishay
Taiwan Semiconductor
EIC Semiconductor
SEMIWARE
Semtech


Why Buy SMBJ33CA from XON Electronics?

  • Original, high-quality Circuit Protection components

  • Ships to USA, India, Australia, Europe & all major countries

  • Wide range of ESD Protection Diodes / TVS Diodes

  • Competitive pricing and bulk order support

  • Trusted supplier with fast dispatch

Order the SMBJ33CA TVS Diodes by FOSAN today from www.xonelec.com.


FAQs – SMBJ33CA TVS Diodes

Q1: Is SMBJ33CA bidirectional?
Yes, it protects in both voltage directions.

Q2: What is its surge capability?
Up to 600W peak pulse power.

Q3: Can it protect microcontrollers?
Absolutely—ideal for ESD and surge protection.

Q4: Which package type does it use?
SMB (DO-214AA).

Q5: Where can I buy it globally?
At www.xonelec.com, with worldwide shipping.


Conclusion

The SMBJ33CA ESD Protection Diodes / TVS Diodes by FOSAN deliver powerful transient suppression for demanding electronic environments. With strong surge performance and fast clamping, they’re ideal for telecom, industrial, automotive, and consumer circuits. As part of the Circuit Protection, ESD Protection Diodes / TVS Diodes group, they ensure long-term system safety and reliability.

Order now from www.xonelec.com.


Looking for help? Visit our FAQ's Section to answer to all your questions

 

X-ON Worldwide Electronics

Welcome To X-ON Electronics
For over three decades, we have been advocating and shaping the electronic components industry. Our management complements our worldwide business scope and focus. We are committed to innovation, backed by a strong business foundation. If you need a trustworthy supplier of electronic components for your business – look no further.
 

Copyright ©2025  X-ON Electronics Services. All rights reserved.
Please ensure you have read and understood our Terms & Conditions before purchasing. All prices exclude GST.

Image for all the cards that are accepted Image for all the cards that are accepted Image for all the cards that are accepted Image for all the cards that are accepted Image for all the cards that are accepted AS9120 Certified