Gas Discharge Tubes AC and CG3 Series RoHS AC and CG3 Series Description Littelfuse AC series two-electrode line protectors provide a high degree of surge protection in AC line applications. The two models, AC120 and AC240 are designed for use with 120VAC and 240VAC lines respectively. They are able to extinguish AC follow-on currents of at least 200A. Littelfuse CG3 two electrode high voltage (1.0 - 7.5 KV) devices are designed for surge protection and high isolation applications, and for applications for which bias voltages or signal levels of several hundred volts are normally present. Agency Approvals Features AGENCY AGENCY FILE NUMBER Rugged ceramic-metal Available in tape-and- * E320116 construction reel packaging Low capacitance (<1.5 Available with or *NOTE: CG3 7.5 product UL approval is currently pending pF) without leads 2 Electrode GDT Graphical Symbol Applications AC Series: Long branch circuits Power supplies (AC wall outlet) Test equipment Short branch circuits Submersible pumps (at breaker box, Medical electronics computer, etc) Additional Information CG3 Series: CRT terminals Power supplies CATV equipment Medical electronics Datasheet Resources SamplesSamples AC Series AC Series AC Series AC Series Antennas Datasheet Resources SamplesSamples CG3 Series CG3 Series CG3 SerCG3 Seriesies 2017 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 12/12/17Gas Discharge Tubes AC and CG3 Series Electrical Characteristics Device Specifications (at 25C) Life Ratings DC Breakdown Impulse Impulse Insulation Capaci- Arc Max Nominal AC Nominal Max in Volts Break- Break- Resistance tance Voltage Follow AC Discharge Impulse Surge 5 (on state down down In On Discharge Current Discharge Current ( 100V/s) ( 1MHz) Voltage) 3 4 (1 x 50Hz in Volts Volts Current Current Current ( 8/20s) 1Amp Min (10x1sec 9 cycles) ( 100V/s) ( 1 Kv/sec) ( 8/20s) 50-60Hz) Part Number MIN TYP MAX MAX MIN MAX TYP 1 AC120 A 230 285 340 500 550 10 G 200 10 shots 1 shot <1.5 pf ~ 25 V 5 A 65 A 1 (at 100V) Amps 5kA 10kA AC240 A 480 600 720 1100 1200 1 CG3 1.0 A 800 1000 1200 1400 1500 1 CG3 1.1 A 880 1100 1320 1600 1700 1 CG3 1.2 A 960 1200 1440 1700 1800 1 CG3 1.3 A 1040 1300 1560 1800 1900 1 CG3 1.5 A 1200 1500 1800 1800 2000 1 CG3 2.0 A 1600 2000 2400 2500 2750 1 CG3 2.5 A 2000 2500 3000 3200 3500 1 CG3 2.7 A 2160 2700 3240 3600 4000 10 G 200 10 shots 1 shot <1.5 pf ~ 25 V N/A N/A 1 (at 100V) Amps 5kA 10kA CG3 3.0 A 2400 3000 3600 4000 4200 1 CG3 3.3 A 2640 3300 3960 4600 4700 2 CG3 4.0 B 3200 4000 4800 5800 6000 2 CG3 4.5 B 3600 4500 5400 6150 6500 2 CG3 5.0 B 4000 5000 6000 7500 8000 2,7 CG3 6.2 B 4960 6200 7440 8100 9500 2,7 CG3 6.5 B 5200 6500 7800 9500 10000 2,6,7 CG3 7.5 B 6000 7500 9000 10000 10600 NOTES: 1. Refer to Production Dimensions section, outline A devices Product Characteristics 2. Refer to Production Dimensions section, outline B devices 3. Tested to UL1449 -- 120V r.ms. for AC120, 230V r.m.s. all others. Conducted with suitable MOV connected in series. Core Outline A & B items: 4. 10 x 5(+) and 5(-) applications 5kA 8/20s Device: Tin Plated 17.512.5 Microns 5. 1 x 1(+) and 1(-) application 10kA 8/20s Materials 6. CG3 7.5 product UL approval is currently pending Axial Outline A & B items: 7. When ordering this item, use suffix code D004 when entering the part number. Device & Wire: Tin Plated 17.512.5 Microns The older product version without D004 suffix code has been discontinued. Refer to Part Numbering System section for additional information. LF Logo, Voltage and date code Product Marking Black ink positive print Glow to arc < 0.5Amps transition current Glow Voltage ~ 140 Volts Storage and Operational -40 to +90 Temperature 2017 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 12/12/17 Device Dimension Type