Sankosha 3SD4-Series GDT

3SD4-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 ≤ 1.0pF

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) (8/20μs)	AC Discharge Current (L1+L2-E) (50Hz)
Part Number	100V/s	1kV/μs	Insulation Resistance⁽¹⁾	DC Holdover Voltage⁽²⁾	8/20μs 200A	10/1000μs 100A	Impulse Discharge Current (L1+L2-E) (8/20μs)	1 Second
3SD4-75	75V ±20%	≤ 600V	≥ 10,000 MΩ	≤ 52V	1000 Times		5kA	10A
3SD4-90	90V ±20%	≤ 600V	≥ 10,000 MΩ	≤ 52V	1000 Times		5kA	10A
3SD4-145	145V ±20%	≤ 600V	≥ 10,000 MΩ	≤ 80V	1000 Times		5kA	10A
3SD4-200	200V ±20%	≤ 600V	≥ 10,000 MΩ	≤ 135V	1000 Times		5kA	10A
3SD4-230	230V ±20%	≤ 650V	≥ 10,000 MΩ	≤ 135V		300 Times	10kA	10A

Notes:

Insulation Resistance for all part numbers is ≥ 10,000 MΩ measured at:
DC 50V for the 3SD4-75, 3SD4-90 and 3SD4-145
DC 100V for the 3SD4-200 and 3SD4-230
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 ≤ 1.0 pF