2018 series gas discharge tube surge arrestor with flat ? technology *rohs directive 2002/95/ec jan. 27, 2003 including annex and rohs recast 2011/65/eu june 8, 2011. flat is a registered trademark of bourns, inc. in the u.s. and other countries. specifcations are subject to change without notice. the device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time. users should verify actual device performance in their specifc applications. description bourns sets a new industry standard by offering this 3-electrode gas discharge tube (gdt) in an innovative fat package design. the model 2018 series with flat ? technology provides a low profle, space-saving solution for space-restricted pcb applications. features n bourns ? flat ? gdt technology n flexible mounting options n low profle, space-saving design n 10x 20 ka 8/20 s rating n ul recognized n rohs compliant* applications n telecom cpe n industrial communications n surge protective devices n high density pcb assemblies *rohs compliant lead free *rohs compliant versions available lead free versions are rohs compliant* characteristics test methods per itu-t (ccitt) k.12 class 3 and iec 61643-311 characteristic model no. 2018-09 2018-15 2018-23 2018-35 2018-42 2018-50 dc sparkover 20 % @ 100 v/s (1) dc sparkover end-of-life values (2) maximum (99 % of values) minimum (99 % of values) 90 v <120 v >65 v 150 v <195 v >110 v 230 v <300 v >170 v 350 v <455 v >260 v 420 v <550 v >315 v 500 v <650 v >375 v impulse sparkover voltage (3) 100 v/s typical / for 99 % of values 1 kv/s typical / for 99 % of values 350 / <600 v 650 / <850 v 400 / <750 v 650 / <900 v 450 / <900 v 600 / <1000 v 600 / <1050 v 800 / <1250 v 700 / <1150 v 900 / <1400 v 800 / <1250 v 1000 / <1600 v insulation resistance (ir) ..................100 v (50 v for model 2018-09) ............................................. > 1 g glow v oltage ...................................... 10 ma ..................................................................................... ~ 70 v arc v oltage ......................................... >1 a ........................................................................................ ~ 10 v capacitance........................................ 1 mhz ..................................................................................... < 2.5 pf impulse discharge current (4) ............24,000 a, 8/20 s (5) ............................................................... 1 operation 20,000 a, 8/20 s ................................................................... > 10 operations 5,000 a, 10/350 s ................................................................. 1 operation 200 a, 10/1000 s ................................................................. > 300 operations 20 a, 10/1000 s ................................................................... >1500 operations alternating discharge current ............10 arms, 1 s ........................................................................... > 10 operations operating/storage temperature ......................................................................................................... -55 to +105 c climatic category (iec 60068-1)........................................................................................................ 55/105/21 moisture sensitivity level ................................................................................................................... 1 esd classifcation .............................................................................................................................. 3b (>8000 v) notes: ? ul recognized component, ul file e153537 ? dc breakdown and impulse sparkover voltage are specifed line to ground. line to line values are typically 1.8 to 2 times the stated line to ground values. (1) in ionized mode. (4) total current rating through center electrode; half value each line to center electrode. (2) ir after life >10 8 . (5) dc sparkover may exceed 25 % after discharge, but will continue to protect without venting. (3) at delivery aql 0.65 level ii, din iso 2859. how to order 2018 - xx - smh - rp lf series designator 2018 = 3-electrode gdt with flat ? t echnology, 20 ka 8/20 s rated voltage 09 = 90 v 23 = 230 v 42 = 420 v 15 = 150 v 35 = 350 v 50 = 500 v confguration smh = horizontal mount smd packaging rp = reelpack (standard) rohs compliancy lf = rohs compliant product asia-pacifc: tel: +886-2 2562-4117 ? email: asiacus@bourns.com emea: tel: +36 88 520 390 ? email: eurocus@bourns.com the americas: tel: +1-951 781-5500 ? email: americus@bourns.com www.bourns.com 18-9 2916
specifcations are subject to change without notice. the device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time. users should verify actual device performance in their specifc applications. 2018 series gas discharge tube surge arrestor with flat ? technology product dimensions typical part marking dimensions: mm (inches) pad layout xx xx 18- xx x 10.90 0.20 (.429 .008) 0.50 0.10 (.020 .004) 1.00 0.20 (.039 .008) 2 plcs. 1.00 (.039) coplanarity between terminals not to exceed 3.50 0.30 (.138 .012) 2.00 0.30 (.079 .012) 2.50 0.20 (.098 .008) 8.00 +0.10/-0.30 (.315 +.004/-.012) dia. 3.12 (.123) 2 plcs. 4.80 (.189) 1.02 (.040) 2 plcs. 0.84 (.033) 0.84 (.033) 6.50 (.256) 11.62 (.457) 13.30 (.524) 0.25 (.010) r grid placement courtyard 12 plcs. 9.58 (.377) dia. 7.22 (.284) dia. date code: ?wwyy? = week and year of manufacture manufacturer?s trademark voltage: 90 v 150 v 230 v 420 v 500 v xx xx 18-x xx xx xx 18- xx x 10.90 0.20 (.429 .008) 0.50 0.10 (.020 .004) 1.00 0.20 (.039 .008) 2 plcs. 1.00 (.039) coplanarity between terminals not to exceed 3.50 0.30 (.138 .012) 2.00 0.30 (.079 .012) 2.50 0.20 (.098 .008) 8.00 +0.10/-0.30 (.315 +.004/-.012) dia. 3.12 (.123) 2 plcs. 4.80 (.189) 1.02 (.040) 2 plcs. 0.84 (.033) 0.84 (.033) 6.50 (.256) 11.62 (.457) 13.30 (.524) 0.25 (.010) r grid placement courtyard 12 plcs. 9.58 (.377) dia. 7.22 (.284) dia. tolerance: 0.05 (.002)
05/17 specifcations are subject to change without notice. the device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time. users should verify actual device performance in their specifc applications. 2018 series gas discharge tube surge arrestor with flat ? technology the standard tape and reel packaging contains 1,500 pieces per 13-inch reel. packaging specifcations dimensions: mm (inches) c 2.00 0.10 (.079 .004) 4.00 0.10 (.157 .004) 24.00 0.30 (.945 .012) 11.50 0.10 (.453 .004) 2.42 0.10 (.095 .004) 1.71 0.10 (.067 .004) 5.72 +0.10/-0.00 (.225 +.004/-.000) 3.90 0.10 (.153 .004) 12.00 0.10 (.472 .004) 1.50 +0.10/-0.05 (.059 +.004/-.002) dia. 1.75 +0.10/-0.00 (.069 +.004/-.000) 12.63 0.10 (.497 .004) 0.40 0.10 (.016 .004) 3.90 +0.20/-0.05 (.154 +.008/-.002) 3.75 +0.25/-0.00 (.148 +.010/-.000) 3.18 +0.10/-0.05 (.125 +.004/-.002) 93 2 8.30 0.05 (.327 .002) dia. 11.44 0.10 (.451 .004) 1.50 0.10 (.059 .004) dia. xx xx 18-xx x 85.0 2.0 (3.346 .079) 356.0 2.0 (14.016 .079) dia. 14.0 +1.0/-0.0 (.551 +.039/-.00) dia. 6.2 1.0 (.244 .039) 90.0 2.0 (3.543 .079) 90.0 2.0 (3.543 .079) 10.0 1.0 (.394 .039) spacing 105.0 (4.134) a a b b c c section a-a section b-b section c-c 12.0 0.1 (.472 .004) 12.0 0.1 (.472 .004) 2.0 0.1 (.079 .004) 4.0 0.1 (.157 .004) 1.75 (.069) 0.50 0.05 (.020 .002) 8.5 +0.15/-0.05 (.335 +.006/-.002) 9.3 0.1 (.366 .004) 9.1 +0.2/-0.0 (.358 +.008/-.000) 7.50 (.295) 16.0 (.630) 8.2 +0.2/-0.0 (.323 +.008/-.000) 330 (12.992) 2.2 0.5 (.087 .020) 13.0 0.2 (.512 .008) 100 1.0 (3.937 .039) 24.0 (.945) 20.2 1.0 (.795 .039)
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