Sankosha SD4-Series Gas Tube 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 497B Recognized (File E140906) High Surge Current Rating Non-Radioactive RoHS Compliant (100% Lead-Free) ISO 9001 Certified Low Capacitance ≤ 0.5pF Proven Performance

Part Number	DC Breakdown Voltage(1)	Impulse Breakdown Voltage	Insulation Resistance MΩ(2)	DC Holdover Voltage V(4)	Impulse Life		Impulse Discharge Current 8/20μs 1 Time	AC Discharge Current 50Hz
	100V/s	1KV/μs			8/20μs, 100A	10/1000μs, 50A		1 Second
SD4-75	75V	≤ 600V	≥ 10,000	≤ 52V	300 Times	n/a	2.5 kA	5A, 1 Time
SD4-90	90V	≤ 600V	≥ 10,000	≤ 52V	300 Times	n/a	2.5 kA	5A, 1 Time
SD4-145	145V	≤ 600V	≥ 10,000	≤ 80V	300 Times	n/a	2.5 kA	5A, 1 Time
SD4-200	200V	≤ 600V	≥ 10,000	≤ 135V	300 Times	n/a	2.5 kA	5A, 1 Time
SD4-230	230V	≤ 650V	≥ 10,000	≤ 135V	n/a	300 Times	2.5 kA	5A, 1 Time
SD4-350(3)	350V	≤ 700V	≥ 10,000	≤ 135V	n/a	300 Times	2.5 kA	5A, 1 Time

Notes:

DC Breakdown Voltage Ranges are ± 20% Insulation Resistance measured at:       DC 50V for the SD4-75, SD4-90 and SD4-145       DC 100V for the SD4-200, SD4-230 and SD4-350 The SD4-350 is not currenly UL Recognized. DC Holdover Voltage measured in accordance with the ITU-T K.12. Capacitance measured at 1 MHz for all part numbers is ≤ 0.5 pF Available on tape and reel