Gas Discharge Tube Gdt Products Page 11 Gas Discharge Tube GDT Products

Gas Discharge Tubes 2017 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 12/12/17 Product Characteristics Materials Device Tin Plated 17.5 12.5 Microns Construction: Ceramic Insulator Storage and Operational Temperature -40 to +90C Reflow Condition Pb - Free assembly Pre Heat - Temperature Min (T s(min) ) 150C - Temperature Max (T s(max) ) 200C - Time (Min to Max) (t s ) 60 - 180 secs Average ramp up rate (Liquidus Temp (T L ) to peak 3C/second max T S(max) to T L - Ramp-up Rate 5C/second max Reflow - Temperature (T L ) (Liquidus) 217C - Temperature (t L ) 60 - 150 seconds Peak Temperature (T P ) 260 +0/-5 C Time within 5C of actual peak Temperature (t p ) 10 - 30 seconds Ramp-down Rate 6C/second max Time 25C to peak Temperature (T P ) 8 minutes Max. Do not exceed 260C Soldering Parameters - Reflow Soldering (Surface Mount Devices) Time Temperature T P T L T S(max) T S(min) 25 t P t L t S time to peak temperature (t 25C to peak) Ramp-down Ramp-up Preheat Critical Zone T L to T P Electrical Characteristics Part Number Device Specifications (at 25C) Life Ratings DC Breakdown in Volts (@100V/s) Impulse Break- down in Volts (@100V/s) Impulse Break- down In Volts (@1 kV/s) Insulation Resistance Capaci- tance (@1MHz) Max Impulse Discharge Current (8/20s) AC Dischage Current (50Hz, 1s) AC Dischage Current (Single, 9 Cycles) Arc Voltage (On State Voltage @ 1A, 1Min) Impulse Life (10/1000s) (100A) MIN TYP MAX MAX MIN MAX MIN CG40.8 640 800 960 1200 1300 1G * 0.8pF 5 Shots (@ 3kA) 1 Shot at 5kA 3A 10A 20V 300 Shots CG41.0 800 1000 1200 1400 1500 CG41.2 960 1200 1440 1700 1800 CG41.8 1440 1800 2160 2700 2800 CG42.0 1600 2000 2400 3100 3200 CG42.5 2000 2500 3000 3700 4000 CG42.7 2160 2700 3240 3800 4200 CG43.0 2400 3000 3600 4100 4500 Note: * Insulation resistance measured at: 250Vdc for CG40.8, 500Vdc for CG41.0 8, CG41.0, CG41.8 and CG42.0, 1000Vdc for CG42.5, CG42.7 and CG43.0 CG4 Series

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