features surface mount for economical assembly high surge current rating designed to meet itu-t k.12 class 5 surge current requirements low capacitance and insertion loss stable breakdown throughout life ul recognized applications telecommunications industrial electronics commercial electronics automotive, aircraft, military electronics characteristics 2029-xx-smlf heavy duty gas discharge tube surge arrestor *rohs directive 2002/95/ec jan. 27, 2003 including annex and rohs recast 2011/65/eu june 8, 2011. speci cations 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 perfor mance may vary over time. users should verify actual device performance in their speci c applications. test methods per itu-t k.12, ieee c62.31 and iec 61643-311 gdt standards. insulation resistance ...................................... 100 v (50 v for model 2029-09-smlf) .............> 10 10 glow voltage ................................................... 10 ma ......................................................... .......~ 70 v arc voltage ...................................................... > 1a ...................................................................~ 12 v glow-arc transition current ................................................................................................... ....< 0.5 a capacitance..................................................... 1 mhz ......................................................... ......< 1 pf dc holdover voltage (2) .................................. 135 v, (52 v for model 2029-09-smlf; 80 v for model 2029-15-SMLF) ........................< 150 ms impulse discharge current .............................. 25000 a, 8/20 s .............................................. 1 oper ation minimum (3) 20000 a, 8/20 s ...............................................> 10 operations 5 ka, 10/350 s ................................................ 1 operation minimum (3) 100 a, 10/1000 s .............................................> 300 operations 10 a, 10/1000 s ...............................................> 1500 operations alternating discharge current ......................... 65 arms, 11 cycles ........................................... 1 operat ion minimum (3) 20 arms, 1 s ......................................................> 10 operations operating temperature ............................................................................................................... -55 to +105 c climatic category (iec 60068-1)................................................................................................ 40/90/21 notes: ?ul recognized component, ul file e153537. ? model number marking on tube: 2029-xxxv. ? surface mount (sm) parts may show a temporary increase in dcbd after the solder re? ow process. most devices will recover wit hin 24 hours time. it should be noted that there is no quality defect nor change in protection levels during the temporary change in dcbd. ? sparkover limits 25% and ir >10 8 after life. ? at delivery aql 0.65 level ii, din iso 2859. ? bourns recommends re? owing surface mount devices per ipc/jedec j-std-020 rev d. (2) network applied. (3) dc sparkover may exceed 20 % after discharge, but will continue to protect without venting. characteristic model no. 2029-09-smlf 2029-15-SMLF 2029-23-smlf 2029-35-smlf 2029-42-smlf dc sparkover 20 % @ 100 v/s 90 v 150 v 230 v 350 v 420 v impulse sparkover (1) 100 v/s (typical) 100 v/s (99 %) 275 v 375 v 325 v 375 v 450 v 500 v 600 v 625 v 650 v 750 v impulse sparkover (1) 1 kv/s (typical) 1 kv/s (99 %) 525 v 600 v 525 v 625 v 650 v 750 v 775 v 875 v 850 v 1000 v bourns offers a heavy duty 2-electrode gdt surge arrestor in an 8x6 mm surface mount (sm) package. the model 2029-xx-smlf series is categorized as a class 5 rated gdt and attains the highest performance classi? cation available under itu k.12 requirements. high performance in a compact surface mount package makes this series ideal for use in heavily exposed telecommunications, commercial and industrial applications. *rohs compliant (1) impulse sparkover voltage is de? ned as typical values of distribution.
how to order 2029 - xx - sm -rp lf model number designator voltage (divided by 10) 09 = 90 v 23 = 230 v 42 = 420 v 15 = 150 v 35 = 350 v surface mount packaging option blank = bulk packaging (standard) -rp = 16 mm reelpack (optional) rohs compliancy lf = rohs compliant product speci cations 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 perfor mance may vary over time. users should verify actual device performance in their speci c applications. 2029-xx-smlf heavy duty gas discharge tube surge arrestor product dimensions recommended pad layout dimensions: mm (inches) tolerances: 0.25 (0.10) 7.9 0.2 (.311 .008) 6.0 0.3 (.236 .012) 0.43 0.1 (.017 .004) 0.48 0.1 (.019 .004) 7.50 0.2 (.311 .008) 5.84 (.230) 1.78 (.070) 8.25 (.325)
2029-xx-smlf heavy duty gas discharge tube surge arrestor 08/15 speci cations 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 perfor mance may vary over time. users should verify actual device performance in their speci c applications. packaging speci cations -rp reel is 33 cm in diameter and 3 cm wide. 8.4 (.331) 0.40 0.05 (.016 .002) section a-a 12.00 (.536) 4.00 (.157) 2.00 0.10 (.079 .004) min. 1.50 (.059) dia. 1.5 +0.1/-0.0 (.059 +.004/-.000) dia. 0.30 (.012) r max. 0.5 (.020) r typ. 1.75 0.1 (.069 .004) 16.0 +0.3/-0.1 (.630 +.012/-.004) 7.5 0.1 (.295 .004) 6.7 (.264) 8.2 (.323) 8.6 (.339) 10.1 (.398) a a dimensions: mm (inches) model standard packaging quantity bulk (bag) tray box reel 2029-xx-smlf 250 1000 2029-xx-sm-rplf 500 unless otherwise speci ed, tolerances in decimals are .x ?0.3, .xx ?0.15 for lengths in millimeters and ? ?for degrees. asia-paci c: tel: +886-2 2562-4117 ?fax: +886-2 2562-4116 emea: tel: +36 88 520 390 ?fax: +36 88 520 211 the americas: tel: +1-951 781-5500 ?fax: +1-951 781-5700 www.bourns.com
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