Sankosha 3SDH4-Series GDT

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)
Part Number	100V/s	1kV/μs	Insulation Resistance⁽¹⁾	≤ 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:

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
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
Capacitance measured at 1 MHz for all part numbers is ≤ 0.5 pF