features size: 8 mm diameter, 6 mm length low capacitance high insulation resistance rohs compliant* ul recognized applications telecommunications equipment industrial equipment/electronics consumer electronics characteristics 2049 series medium duty 2-electrode gas discharge tube *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 and iec 61643-311. characteristic model no. 2049-07 2049-09 2049-12 2049-13 2049-14 2049-23 dc sparkover ?0 % @ 100 v/s 75 v 90 v 120 v 130 v 145 v 230 v impulse sparkover (1) 100 v/? 1000 v/? < 500 v < 600 v < 500 v < 600 v < 500 v < 700 v < 500 v < 700 v < 500 v < 700 v < 500 v < 700 v insulation resistance (ir) (2) ....................................50 / 100 / 250 vdc ................................................. > 10 g glow voltage ...........................................................10 ma ................................................. .................... ~ 70 v arc voltage ..............................................................1 a ................................................. ......................... ~ 10 v glow-arc transition current ................................................................................................... ................. < 1 a maximum capacitance ............................................1 mhz ......................................................... ............ < 1.5 pf impulse discharge current ......................................20,000 a, 8/20 ? ............................................ ...... 1 operation 15,000 a, 8/20 ? .................................................. 10 operations alternating discharge current .................................20 a, 50 hz, 1 sec. ........................................... ..... 1 operation 65 a, single, 9 cycles ............................................ 1 operation impulse life .............................................................100 a 10/1000 ? ................................... ............... 500 operations operating temperature ............................................................................................................................ -30 to +85 ? storage temperature ........................................................................................................... .................... -40 to +150 ? dc holdover voltage (3) ........................................................................................................................... < 1 50 ms climatic category (iec 60068-1)................................................................................................ ............. 40 / 90 / 21 notes: ?ul recognized component, ul file e153537. ? at delivery aql 0.65, level ii din iso 2859. (2) dc breakdown voltage dc measuring voltage 75?0 v 50 v 120?00 v 100 v 470?00 v 250 v (3) dc breakdown voltage dc holdover voltage 75?45 v 52 v 230 v 80 v 250 v 135 v 300?00 v 150 v characteristic model no. 2049-25 2049-30 2049-35 2049-40 2049-47 2049-60 dc sparkover ?0 % @ 100 v/s 250 v 300 v 350 v 400 v 470 v 600 v impulse sparkover (1) 100 v/? 1000 v/? < 500 v < 700 v < 700 v < 900 v < 700 v < 900 v < 800 v < 1000 v < 900 v < 1100 v < 1100 v < 1300 v *rohs compliant (1) impulse sparkover voltage is de ned as typical values of distribution.
20 (.787) min. 6.0 +0.3/-0.5 (.236 +.001/-.020) 8.0 +0.3/-0.5 (.315 +.001/-.020) 0.8 0.05 (.031 .002) 2049-xx-b 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. 2049 series medium duty 2-electrode gas discharge tube packaging speci cations product dimensions how to order 2049 - xx - b __ lf model number designator voltage 07 = 75 v 25 = 250 v 09 = 90 v 30 = 300 v 12 = 120 v 35 = 350 v 13 = 130 v 40 = 400 v 14 = 145 v 47 = 470 v 23 = 230 v 60 = 600 v leads b = 0.8 mm straight leads packaging blank = bulk packaging (standard) - 100 pcs./tray; 500 pcs./box t1 = reelpack (optional) - 500 pcs./reel plating lf = rohs compliant product dimensions: mm (inches) rev. b 08/15 note: custom leadforms available - please contact bourns for details. model 2049-xx-blf ships standard bulk pack, 100 pieces per tray; 5 trays per box (500 units). the optional reelpack (-bt1lf) contains 500 pieces per reel. reel is 330 mm in diameter and 68 mm wide. two reels per box (1k units). 2049-xx-bt1lf ?0.8 mm (0.032 in.) dia. lead wire 52.4 ?0.5 (2.1 ?.020) 10.0 ?0.5 (0.4 ?.020) dimensions: mm (inches) 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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