• Skip to primary navigation
  • Skip to main content
  • Skip to primary sidebar
  • Skip to footer

Power Electronic Tips

Power Electronic News, Editorial, Video and Resources

  • Products
    • Power Supplies
    • AC-DC
    • DC-DC
    • MOSFETS
    • Power Management
    • Battery Management
    • RF Power
    • Resistors
    • Capacitors
    • Magnetics
    • Transformers
  • Applications
    • LED Lighting
    • Rack Mount
    • Wireless
  • EE Forums
    • EDABoard.com
    • Electro-Tech-Online.com
  • EE Learning Center
    • Design Guides
      • WiFi & the IOT Design Guide
      • Microcontrollers Design Guide
      • State of the Art Inductors Design Guide
      • Power Electronics & Programmable Power
  • Video
    • EE Videos
    • TI Power Videos
    • Teardown Videos
  • Resources
    • Design Fast
    • eBooks / Tech Tips
    • FAQ
    • LEAP Awards
    • Podcasts
    • Webinars
    • White Papers

Diode arrays protect PHY chips from ESD and lightning damage

October 17, 2018 By Aimee Kalnoskas Leave a Comment

SP4031 TVS diode arraysLittelfuse announced the first of a series of TVS Diode Arrays (SPA Diodes) designed to protect two lines of 10/100/1000BaseT Ethernet ports from damage due to sustained overcurrent and overvoltage. Through-package routing permits the SP4031 Series Hybrid Protection Module’s circuitry to protect an Ethernet PHY chip from damage due to events such as electrostatic discharge (ESD) and lightning-induced surge.

During a prolonged overvoltage event such as a power fault, this component will present a high impedance. The high impedance state will reset once the power fault event has ended. During a fast transient event, the component will clamp, thus protecting any downstream chipset from surge or ESD damage.

The SP4031 Series’ low loading capacitance (just 2.5pF per I/O) and high surge handling capability (up to 35A) make it ideal for protecting Ethernet and other high-speed data interfaces.  Typical applications for the SP4031 Series Hybrid Protection Module include 10/100/1000BaseT Ethernet, (ITU K.21 Basic level compliance), as well asintegrated magnetics, or ADSL/VDSL/G.fast modem, and Industrial Ethernet and smart TVs.

“The SP4031 Series Hybrid Protection Module combines some of the best products from our Electronics Business Unit with some of the best products from our Semiconductor Business Unit to create a hybrid, known-good solution for the Ethernet protection designer,” said Tim Micun, Business Development Manager, TVS Diode Arrays (SPA® Diodes) at Littelfuse. “Its’ fast response protects Ethernet and other high speed interfaces faster, which means protecting better, because long-term exposure to overvoltage or overcurrent shortens chip life.”

The SP4031 Series Hybrid Protection Module offers these key benefits:

  • Known-good design for overvoltage and overcurrent events provides a proven turnkey solution for protecting Ethernet PHY.
  • Through package routing, low breakdown voltage and low parasitic capacitance produce a device that performs well at Ethernet speeds up to 1000 Mbits.
  • During a high current event, creates a temporary high impedance which interrupts the flow of the signal lines and damage to the PHY chip.

The SP4031 Series Hybrid Protection Module is available in an SOIC-8 package in tape & reel format in quantities of 2,500. Sample requests may be placed through authorized Littelfuse distributors worldwide. For a listing of Littelfuse distributors, please visit Littelfuse.com.

Filed Under: diodes, Power Components Tagged With: littelfuse

Reader Interactions

Leave a Reply

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.

Primary Sidebar

CURRENT DIGITAL ISSUE

A frequency you can count on There are few constants in life, but what few there are might include death, taxes, and a U.S. grid frequency that doesn’t vary by more than ±0.5 Hz. However, the certainty of the grid frequency is coming into question, thanks to the rising percentage of renewable energy sources that…

More from the digital archive

DesignFast

Component Selection Made Simple.

Try it Today
design fast globle

Subscribe to our Newsletter

The Power Electronic eNewsletter delivers breaking electronic and power component news, resources, product innovations and more.

Subscribe today

EE TRAINING CENTER CLASSROOMS

EE Classrooms

RSS Current EDABoard.com discussions

  • How to set USB port as RS-485 entrance? How to interpret Growatt solar inverter commands?
  • Find Critical Path in Cadence Genus?
  • Simulation of a Press-ON-Press-OFF push button
  • HFSS 2022 R2 - Waveguide port configuration
  • Why this antenna azimuth and elevation direction are the same?

RSS Current Electro-Tech-Online.com Discussions

  • How know if solder iron has good quality tip?
  • How does a transistor works as a switch?
  • Peltier control
  • How to set USB port as RS-485 entrance? How to interpret Growatt solar inverter commands?
  • Component Identification

Footer

EE World Online Network

  • DesignFast
  • EE World Online
  • EDA Board Forums
  • Electro Tech Online Forums
  • Connector Tips
  • Microcontroller Tips
  • Analog IC Tips
  • Sensor Tips
  • Test and Measurement Tips
  • Wire and Cable Tips
  • 5G Technology World

Power Electronic Tips

  • Subscribe to our newsletter
  • Advertise with us
  • Contact us
  • About us
Follow us on TwitterAdd us on FacebookFollow us on YouTube Follow us on Instagram

Copyright © 2022 · WTWH Media LLC and its licensors. All rights reserved.
The material on this site may not be reproduced, distributed, transmitted, cached or otherwise used, except with the prior written permission of WTWH Media.

Privacy Policy