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3SDH4-Series
Sankosha Gas Discharge Tubes (GDT) - Surge Arresters
Applications:

  • Cable Telephony Products
  • Modems/Cable Modems
  • Broadband/CATV/Coaxial Protectors
  • xDSL Modems and Peripherals
  • Building Entry/Outside Plant
  • Transient Voltage Surge Suppression
  • Features:

  • UL 479B Recognized (File E140906)
  • High Surge Current Rating
  • Non-Radioactive
  • Surface Mount
  • Small Size
  • RoHS Compliant (100% Lead-Free)
  • ISO 9001 and ISO 14001 Certified
  • Low Capacitance ≤ 0.5pF

  • Part
    Number
    DC Breakdown Voltage
    (L1-E)(L2-E)
    Impulse Breakdown Voltage
    (L1-E)(L2-E)
    Insulation Resistance(1) DC Holdover Voltage(2) Impulse Life
    (L1+L2-E)
    Impulse Discharge
    Current (L1+L2-E)
    AC Discharge Current (L1+L2-E)
    100V/s 1kV/μs ≤ 150ms 10/1000μs 8/20μs 50Hz, 1 Second
    3SDH4-75 75V ± 20%
    (60V - 90V)
    ≤ 600V ≥ 10,000 MΩ ≤ 52V 100A x 2
    (300 Times)
    5kA x 2
    (5 times in each polarity)
    5A x 2
    (10 times)
    3SDH4-90 90V ± 20%
    (72V - 108V)
    ≤ 600V ≥ 10,000 MΩ ≤ 52V 100A x 2
    (300 Times)
    5kA x 2
    (5 times in each polarity)
    5A x 2
    (10 times)
    3SDH4-145 145V ± 20%
    (116V - 174V)
    ≤ 600V ≥ 10,000 MΩ ≤ 80V 100A x 2
    (300 Times)
    5kA x 2
    (5 times in each polarity)
    5A x 2
    (10 times)
    3SDH4-200 200V ± 20%
    (160V - 240V)
    ≤ 600V ≥ 10,000 MΩ ≤ 135V 100A x 2
    (300 Times)
    5kA x 2
    (5 times in each polarity)
    5A x 2
    (10 times)
    3SDH4-230 230V ± 20%
    (184V - 276V)
    ≤ 650V ≥ 10,000 MΩ ≤ 135V 100A x 2
    (300 Times)
    5kA x 2
    (5 times in each polarity)
    5A x 2
    (10 times)
    3SDH4-350 350V ± 20%
    (280V - 420V)
    ≤ 750V ≥ 10,000 MΩ ≤ 135V 100A x 2
    (300 Times)
    5kA x 2
    (5 times in each polarity)
    5A x 2
    (10 times)


    Notes:
    1. Insulation Resistance for all part numbers is ≥ 10,000 MΩ measured at:
            DC 50V for the 3SDH4-75, 3SDH4-90 and 3SDH4-145
            DC 100V for the 3SDH4-200, 3SDH-230, and 3SDH4-350
    2. GDT will return to high impediance state in ≤ 150ms at the voltage indicated. DC Holdover Voltage measured in accordance with the ITU-T K.12 or the IEEE C62.31-1987 Test Circuit
    3. Capacitance measured at 1 MHz for all part numbers is ≤ 0.5 pF
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