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| Gas Discharge Tube (GDT) Products AC and CG3 Series AC and CG3 Series Description (R) 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 (R) AGENCY FILE NUMBER E320116* *NOTE: CG3 7 product UL approval is currently pending .5 * Rugged ceramic-metal construction * Low capacitance (<1.5 pF) Applications AC Series: * Available in tape-andreel packaging * Available with or without leads 2 Electrode GDT Graphical Symbol * Long branch circuits (AC wall outlet) * Short branch circuits (at breaker box, computer, etc) CG3 Series: * * * * Power supplies Test equipment Submersible pumps Medical electronics * CRT terminals * CATV equipment * Antennas * Power supplies * Medical electronics (c)2009 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to www.littelfuse.com for current information. Customer should verify actual device performance in their specific applications. 9 Revised: February 10, 2010 AC and CG3 Series Gas Discharge Tube (GDT) Products AC and CG3 Series Electrical Characteristics Device Specifications (at 25C) Device Dimension Type Life Ratings DC Breakdown in Volts (@100V/s) Impulse Impulse Insulation CapaciArc Max Nominal AC Nominal Max BreakBreak- Resistance tance Voltage Follow AC Discharge Impulse Surge (on state down down In On Discharge Current Discharge Current5 (@1MHz) Voltage) (1 x 50Hz in Volts Volts Current3 Current Current4 (@8/20s) (@100V/s) (@1 Kv/sec) @1Amp Min (10x1sec @50-60Hz) 9 cycles) (@8/20s) Part Number $& $& &* &* &* &* &* &* MIN TYP MAX MAX MIN MAX TYP $ $ $ $ $ $ $ $ $ $ $ $ % % % % % % * SI DW 9 a 9 $PSV $ $ VKRWV N$ VKRW N$ &* &* &* &* &* * SI DW 9 a 9 $PSV 1$ 1$ VKRWV N$ VKRW N$ &* &* &* &* &* NOTES: 1. Refer to Production Dimensions section, outline A devices 2. Refer to Production Dimensions section, outline B devices 3. Tested to UL1449 Third Edition -- 120V r.ms. for AC120, 230V r.m.s. all others. Conducted with suitable MOV connected in series. 4. 10 x [5(+) and 5(-)] applications 5kA @ 8/20s 5. 1 x [1(+) and 1(-)] application 10kA @ 8/20s 6. CG3 7 product UL approval is currently pending .5 7 When ordering this item, use suffix code D004 when entering the part number. . The older product version without D004 suffix code has been discontinued. Refer to Part Numbering System section for additional information. Product Characteristics Core Outline A & B items: Device: Tin Plated 17 .512.5 Microns Materials Axial Outline A items: Device: Nickel Plated 2-5 Microns Wire: Tin Plated 17 .512.5 Microns Axial Outline B items: Device & Wire: Tin Plated 17 .512.5 Microns Product Marking Glow to arc transition current Glow Voltage Storage and Operational Temperature LF Logo, Voltage and date code; Black ink positive print < 0.5Amps ~ 140 Volts -40 to +90 AC and CG3 Series 10 Revised: February 10, 2010 (c)2009 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to www.littelfuse.com for current information. Customer should verify actual device performance in their specific applications. Gas Discharge Tube (GDT) Products AC and CG3 Series Soldering Parameters - Reflow Soldering (Surface Mount Devices) Reflow Condition - Temperature Min (Ts(min)) Pre Heat - Temperature Max (Ts(max)) - Time (Min to Max) (ts) Average ramp up rate (Liquidus Temp (TL) to peak TS(max) to TL - Ramp-up Rate Reflow - Temperature (TL) (Liquidus) - Temperature (tL) Pb - Free assembly 150C TP Ramp-up tP Critical Zone TL to TP 60 - 180 secs 3C/second max 5C/second max 217C 60 - 150 seconds 260+0/-5 C 10 - 30 seconds 6C/second max 8 minutes Max. 260C Temperature 200C TL TS(max) Preheat tL Ramp-down TS(min) tS 25 time to peak temperature (t 25C to peak) Time Peak Temperature (TP) Time within 5C of actual peak Temperature (tp) Ramp-down Rate Time 25C to peak Temperature (TP) Do not exceed Soldering Parameters - Wave Soldering (Thru-Hole Devices) 300 Recommended Process Parameters: Wave Parameter Preheat: (Depends on Flux Activation Temperature) (Typical Industry Recommendation) Temperature (C) - Measured on bottom side of board 280 260 240 220 200 180 160 140 120 100 80 60 40 20 100 110 120 130 140 150 160 170 180 190 200 210 220 230 240 10 20 30 40 50 60 70 80 90 0 0 Lead-Free Recommendation Temperature Minimum: Temperature Maximum: Preheat Time: Solder Pot Temperature: Solder Dwell Time: 100 C 150 C 60-180 seconds 280 C Maximum 2-5 seconds Time (Seconds) Preheat Time Dwell Time Cooling Time Soldering Parameters - Hand Soldering Solder Iron Temperature: 350 C +/- 5C Heating Time: 5 seconds max. (c)2009 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to www.littelfuse.com for current information. Customer should verify actual device performance in their specific applications. 11 Revised: February 10, 2010 AC and CG3 Series Gas Discharge Tube (GDT) Products AC and CG3 Series Device Dimensions Axial PROFILE VIEW TOP VIEW Part Numbering System and Ordering Information AC XXX XXX Series 0.80DIA. TYP. [0.031] CG3 X.X XXX D400 Series CG3 AC Line Voltage 8.0 0.2 [0.314 0.012] Breakdown Voltage 1.0 = 1000V 1.1 = 1100V 1.2 = 1200V 1.3 = 1300V 1.5 = 1500V 2.0 = 2000V 2.5 = 2500V 2.7 = 2700V 3.0 = 3000V 3.3 = 3300V 4.0 = 4000V 4.5 = 4500V 5.0 = 5000V 6.2 = 6200V 6.5 = 6500V 7.5 = 7500V A 6.0 0.2 [0.236 0.001] 120 = 120V 240 = 240V Lead / Packaging Option = Core (no leads) / Bulk pack, 400 pcs per bag L = Leaded / Bulk pack, 50 pcs per tray LTR = Leaded / Tape & Reel, 500 pcs per reel 62 2 [2.441 0.079] 7.9 0.3 [0.311 0.012] B 0.80DIA. TYP. [0.031] 8.0 0.2 [0.314 0.012] Lead / Packaging Option = Core (no leads) / Bulk pack, 400 pcs per bag L = Leaded / Bulk pack, 50 pcs per tray LTR = Leaded / Tape & Reel, 500 pcs per reel Special Suffix Code Core Enter this D400 special suffix code when placing orders for CG36.2, CG36.5 and CG37.5 only PROFILE VIEW TOP VIEW A 6.0 0.2 [0.236 0.001] 8.0 0.2 [0.314 0.012] B 7.9 0.3 [0.311 0.012] 8.0 0.2 [0.314 0.012] Packaging Dimensions For 'LTR' Option Code Axial Lead Items <1.2 Max. Lead Bend 254.0 - 356.0 [10.0 - 14.0] <0.8 Max 52.4 [2.063] 22.8 [0.898] 80.0 [3.15] Direction of Feed 6.4 [0.252] 5.0 Pitch [0.197] AC and CG3 Series 12 Revised: February 10, 2010 (c)2009 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to www.littelfuse.com for current information. Customer should verify actual device performance in their specific applications. |
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