Gas Discharge Tube Gdt Products Page 57 Gas Discharge Tube GDT Products

Gas Discharge Tubes 2015 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 11/06/15 SG Series Part Number Device Specifications (at 25C) Life Ratings DC Breakdown in Volts (@100V/s) Impulse Breakdown in Volts (@100V/s) Impulse Breakdown In Volts (@1 Kv/sec) Insulation Resistance Capaci- tance (@1MHz) Arc Voltage (@1A) Glow to Arc Transition Current Glow Voltage Nominal AC Discharge Current (x10 @50Hz) Nominal Impulse Discharge Current (x10 @8/20s) Nominal Impulse Discharge Current (10/1000s 100 cycles) MIN TYP MAX MAX MIN MAX SG75 52 75 98 500 650 >1G (at 50VDC) <1 pf ~10 V ~1.0 A ~60 V 2 A 2kA 10 A SG90 63 90 117 500 600 SG150 105 150 195 500 600 SG200 140 200 260 550 700 >1G (at 100VDC) 2.5 A 1kA SG230 172 230 288 650 800 >1G (at 50VDC) 2 A SG300 225 300 375 700 850 ~12 V ~0.5 A ~90 V SG300Q 210 300 390 580 650 ~20 V ~0.8 A ~140 V NA* SG350 263 350 437 750 900 <0.8 pf ~12 V ~0.5 A ~90 V 2 A SG350Q 263 350 437 600 700 ~140 V NA* SG400 300 400 500 800 950 ~90 V 2 A SG420 315 420 525 800 1000 <1 pf ~10 V <1.0 A ~60 V 2 A SG420Q 315 420 525 650 750 ~20 V ~140 V NA* SG450Q 370 450 500 680 750 >1G (at 100VDC) ~20 V 1 A SG500Q 400 500 600 950 1050 <0.5 pf ~16 V ~0.1 A 2 A SG600Q 450 600 750 1100 1200 <1 pf ~20 V <0.5 A * Specification is not applicable for quick response (SGxxx Q ) version of product Product Characteristics Materials Device Tin Plated 17.512.5 Microns Construction Ceramic Insulator. Storage and Operational Temperature -40 to +90 C Electrical Characteristics Voltage (V) Time (ns) 0 200 400 600 800 1000 1200 Max dynamic breakover voltage Hold-over voltage On-State voltage Voltage vs. Time Characteristic @ 1.0 GHz = 0.01 dB @ 1.4GHz = 0.1 dB @ 1.8 GHz = 0.53 dB @ 2.1 GHz = 0.81 dB @ 2.45 GHz= 1 dB @ 2.8 GHz = 1.2 dB @ 3.1 GHz = 1.5 dB @ 3.5 GHz = 2.1 dB Typical Insertion Loss

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