SG450Q - SG Series

Series: SG
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GDT SG Image
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Disclaimer Notice

Littelfuse products are not designed for, and shall not be used for, any purpose (including, without limitation, automotive, military, aerospace, medical, life-saving, life-sustaining or nuclear facility applications, devices intended for surgical implant into the body, or any other application in which the failure or lack of desired operation of the product may result in personal injury, death, or property damage) other than those expressly set forth in applicable Littelfuse product documentation. Warranties granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in applications not expressly intended by Littelfuse as set forth in applicable Littelfuse documentation. The sale and use of Littelfuse products is subject to Littelfuse Terms and Conditions of Sale, unless otherwise agreed by Littelfuse. "Littelfuse" includes Littelfuse, Inc., and all of its affiliate entities.

Littelfuse SG series GDT offers high surge ratings in a miniature package. It's designed for surface mounting on PCB with small size 4.5x3.2x2.7mm. Low insertion loss is perfectly suited to broadband equipment applications.

The capacitance does not vary with voltage, and will not cause operational problems with ADSL2+, where capacitance variation across Tip and Ring is undesirable. These devices are extremely robust and are able to divert a 1000A pulse without destruction.

Features
  • RoHS compliant and Lead-free
  • GHz working frequency
  • Excellent stability on multiple pulse duty cycle
  • Excellent response to fast rising transients
  • Ultra Low Insertion Loss
  • 1-2KA surge capability tested with 8/20uS pulse as defined by IEC 8100-4-5
  • Ultra small devices offered in a variety of mounting lead forms
  • Non-Radioactive
  • Low capacitance (<1 pF)
  • Voltage Ranges 75V to 420V
  • UL recognized
  • Conforms to ITU-T K12, IEC 1000-4-5
  • Square Outline

    • Applications
  • Communication equipment
  • CATV equipment
  • Text equipment
  • Data lines
  • Power supplies
  • Telecom SLIC protection
  • Broadband equipment
  • ADSL equipment including ADSL2+
  • XDSL equipment
  • Satellite and CATV equipment
  • General telecom equipment
    • Check Stock Order Samples

    Application Spotlight


    Property (Mouseover for details) Value
    MIN Sparkover Voltage (V) 370
    Nom DC Sparkover (V) 450
    Max DC Spark over Voltage 550
    Max Impulse Sparkover Voltage @ 100V/us (V) 680
    Max Impulse Breakdown Voltage @ 1kV/us (V) 750
    Insulation Resistance 1
    Capacitance (Co) (pF) 1
    Impulse Discharge Current @8/20μs (kA) 1
    Electrodes 2
    Failsafe No
    Insulation Resistance (Voltage Rating) 1
    Packaging Method T&R
    Partner ECAD Models SG450Q
    Operating Temperature -40° to 90°C

    pdficon Gas Discharge Tubes SG Datasheet

    pdficon Circuit Protection Technology Application Matrix

    Littelfuse is the world leader in the design and manufacturing of fuses for the automotive industrial handheld computer and telecom markets...
    pdficon Gas Discharge Tubes Catalog

    GDTs dissipate voltage transients through a contained plasma gas. They have high insulation resistance plus low capacitance and leakage to ensure minimal effect on normal operation of equipment...
    pdficon Circuit Protection Products Selection Guide

    Part # Part Description RoHS Pb-free RoHS (2015/ 863/EU) Certificate REACH (SVHC’s) Declaration Halogen Free REACH (SVHC’s) IPC-Material Declaration
    SG450Q SQUARE SG 450V QUICK RoHS No 03/17/2016 PbFree No 03/17/2016 Yes
    03/17/2016
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