? 2017 littelfuse, inc. specifcations are subject to change without notice. revised: 12/12/17 description the littelfuse cg6 series gdt is a miniature surface- mount device with a 3ka 8/20 surge rating. this itu-t k.12 class 1, type 1 gdt provides protection against fast rising transients typically caused by nearby lightning events. its low insertion loss and thus low off-state capacitance makes it compatible with high bandwidth applications up to the ghz rf range. this gdts crowbarring characteristic protects sensitive ics from surges as defned in itu k.20/21/45 basic and enhanced recommendations, gr-1089-core frst level lightning port type 1,3, and 5, and iec 61000-4-5, 2 nd edition level 5 and below. it is hermetically sealed using non-radioactive materials and is thus environmentally safe. features ? rohs compliant and lead-free ? excellent surge withstanding capability ? excellent response to fast rising transients. ? ultra low insertion loss and low off-state capacitance for ghz bandwidth compatibility ? 3ka 8/20s surge capability ? compact smd package offered in two squared terminals ? non-radioactive ? ultra low capacitance (<0.3pf) ? voltage range 75v to 600v ? ul recognized ? characterized according to itu-t k.12 as a class x, type 1 gdt applications ? broadband equipment ? catv/broadband equipment ? data lines and ethernet (up to 10gbe) ? xdsl equipment, including adsl2, adsl, vdsl, vdsl2 30a bandplan compatible ? iad (integrated access device) ? set top box (stb) ? general telecom equipment ? embedded multimedia terminal adapter (emta) ? rf connector ? multimedia over coax alliance (moca) ? base station rf antenna transmitter ? g.fast 106mhz and 212 mhz bandplans compatible ? aerospace and automotive agency agency file number e128662 e320116 agency approvals cg6 series rohs two electrode gdt graphical symbol cg6 series additional information daashee samples resources cg5 series samples gas discharge tubes
? 2017 littelfuse, inc. specifcations are subject to change without notice. revised: 12/12/17 product characteristics voltage vs. time characteristic v-i characteristic curve materials device tin plated 17.5 12.5 microns construction: ceramic insulator storage and operational temperature -40 to +90c @1.0ghz = 0.03db @1.4ghz = 0.06db @1.8ghz = 0.09db @2.0ghz = 0.11db @2.4ghz = 0.13db @2.8ghz = 0.15db @3.1ghz = 0.17db @3.5ghz = 0.19db @4.0ghz = 0.22db typical insertion loss note: insertion data for customer reference only, application testing needed for verification. electrical characteristics part number device specifcations (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) max impulse discharge current (10/700s) ac dischage current (50hz, 1sec) ac dischage current (single, 9 cycles) dc holdover voltage (<150ms) impulse life (10/1000s) (50a) min typ max max min max min min min cg675 60 75 90 600 700 0.3pf 10 shots @ (3ka) 1 1 shot at 5ka 10 shots @ (150a/6kv) 2 3a 6a 52v 300 shots cg690 72 90 108 600 700 52v CG6145 116 145 174 600 700 52v cg6230 186 230 276 600 700 80v cg6250 200 250 300 600 700 80v cg6300 240 300 360 650 800 135v cg6350 280 350 420 750 900 135v cg6400 360 400 480 850 1000 135v cg6470 376 470 564 900 110 0 135v cg6600 480 600 720 1000 1200 135v note: 1. 5 x (+) and 5 x (-) applications of 3ka 8/20s sec. 2. 5 x (+) and 5 x (-) applications of 150a 10/700s sec. 1g @50v 1g @100v 1g@250v v oltag e (v) time (ns) 02 00 0 20 0 40 0 60 0 80 0 40 06 00 80 01 000 12 00 max dynamic break over vo lt age hold over v olt age on-st ate v olt age i axis arc v oltage p oint at whic h gas tu be is at lowest impedance and fully conductiv e. t ypical arc v olt age at about 10 to 12 v olts max dynamic breakover v oltage (impulse breakdown) p oint at whic h gas t ube is at lowest impedance and fully conductiv e holdover v oltage de vice resets to a high impedance st ate once the v olt age across the de vice f alls belo w this level. characteristics of gas plasma -response to transient condition v axis note: tested per 1kv/s waveform cg6 series gas discharge tubes
? 2017 littelfuse, inc. specifcations are subject to change without notice. revised: 12/12/17 refow condition pb C free assembly pre heat - temperature min (t s(min) ) 150c - temperature max (t s(max) ) 200c - time (min to max) (t s ) 60 C 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 refow - temperature (t l ) (liquidus) 217c - temperature (t l ) 60 C 150 seconds peak temperature (t p ) 260 +0/-5 c time within 5c of actual peak temperature (t p ) 10 C 30 seconds ramp-down rate 6c/second max time 25c to peak temperature (t p ) 8 minutes max. do not exceed 260c soldering parameters - refow soldering (surface mount devices) ti me te mperature t p t l t s(max) t s(min) 25 t p t l t s time to peak temperature (t 25oc to peak) ramp-down ramp-up preheat critical zone t l to t p device dimensions product marking type cod ep roduction year code (lasr digit) production month code a 6 a 0.5 0.2 3.5 0.2 3.5 0.2 4.0 0.2 top view profile view top view 5.0 3.5 1.3 r ecommended soldering p ad layout dimensions in millimeters cg6 series type code a cg675 b cg690 s CG6145 d cg6230 r cg6250 e cg6300 g cg6350 i cg6400 p cg6470 v cg6600 month code a january b february c march d april e may f june g july h august i september j october k november l december gas discharge tubes
? 2017 littelfuse, inc. specifcations are subject to change without notice. revised: 12/12/17 part numbering system and ordering information taping and reel specifcations cg6 xxx sm breakdown v oltage lead option code 75 = 75v 90 = 90v 145 = 145v 230 = 230v 250 = 250v 300 = 300v 350 = 350v 400 = 400v 470 = 470v 600 = 600v series cg6 sm (surface mount, two square terminals) 3304.0 >1.5 15 typ. 100 typ. pa ck aging quantity: 20 00 pcs per reel (1 3?) 1 reels per inner bo x 10 inners bo x per carton 20, 000 pcs per full carton w f e p2 p0 p d unit = mm item spec item spec p 8.0 0.1 e 1 .75 0.1 p0 4.0 0.1 d 1 .50 + 0.1/-0.0 p2 2.0 0.1 b0 4.5 0.1 w 12.0 0.3 k0 3.9 0.1 f 5.5 0.1 t 0 .4 0.1 a0 3.9 0.1 10p0 4.0 0.2 t b0 k0 a0 cg6 series disclaimer notice - information furnished is believed to be accurate and reliable. however, users should independently evaluate the suitability of and test each product selected for their own applications. littelfuse products are not designed for, and may not be used in, all applications. read complete disclaimer notice at: www.littelfuse.com/disclaimer-electronics. gas discharge tubes
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