features compact size: 5.5 mm diameter, 6 mm length low capacitance low leakage rohs compliant* ul recognized applications telecommunications equipment industrial equipment/electronics consumer electronics characteristics 2057 series light duty 2-electrode miniature 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. 2057-07 2057-09 2057-12 2057-13 2057-15 2057-23 dc sparkover ?0 % @ 100 v/s 75 v 90 v 120 v 130 v 150 v 230 v impulse sparkover (1) 100 v/? 1000 v/? < 700 v < 800 v < 600 v < 700 v < 600 v < 700 v < 600 v < 700 v < 600 v < 700 v < 600 v < 700 v insulation resistance (ir) (2) ....................................50 / 100 / 250 vdc ................................................. > 1 g glow voltage ...........................................................10 ma ................................................. .................... ~ 70 v arc voltage ..............................................................1 a ................................................. ......................... ~ 10 v glow-arc transition current ................................................................................................... ................. < 1 a maximum capacitance ............................................1 mhz ......................................................... ............ < 1 pf maximum impulse discharge current .....................10,000 a, 8/20 ? .................................................. 1 o peration 5,000 a, 8/20 ? ..................................................... 10 operations nominal alternating discharge current ...................5 a, 50 hz, 1 second .............................................. 1 o peration 15 a, 9 cycles ........................................................ 1 operation impulse life ............................................................100 a, 10/1000 ? ................................... ............... 300 operations dc holdover voltage (3) ........................................................................................................................... < 1 50 ms operating temperature ............................................................................................................................ -40 to +90 ? storage temperature ........................................................................................................... .................... -40 to +90 ? 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 sparkover voltage dc measuring voltage 75?0 v 50 v 120?00 v 100 v 470 v 250 v (3) network applied dc sparkover voltage dc holdover voltage 75?45 v 52 v 230?50 v 80 v 300?70 v 150 v *rohs compliant characteristic model no. 2057-25 2057-30 2057-35 2057-40 2057-47 dc sparkover ?0 % @ 100 v/s 250 v 300 v 350 v 400 v 470 v impulse sparkover (1) 100 v/? 1000 v/? < 600 v < 700 v < 700 v < 900 v < 700 v < 900 v < 800 v < 1000 v < 900 v < 1100 v (1) impulse sparkover voltage is de ned as typical values of distribution.
speci cations are subject to change without notice. customers should verify actual device performance in their speci c applications. 2057 series light duty 2-electrode miniature gas discharge tube packaging speci cations model 2057 ships standard bulk, 100 pcs. per tray; 5 trays per box (500 units). the optional reelpack (-bt1) contains 500 pcs . per reel; 2 reels per box (1k units). product dimensions how to order 2057 - xx - b t1 lf model number designator voltage (divided by 10) 07 = 75 v 25 = 250 v 09 = 90 v 30 = 300 v 12 = 120 v 35 = 350 v 13 = 130 v 40 = 400 v 15 = 150 v 47 = 470 v 23 = 230 v leads b = 0.8 mm packaging (blank) = bulk packaging (standard) t1 = reelpack (optional) rohs compliancy lf = rohs compliant product rev. b 08/15 5.5 +0.3/-0.5 (.217 + .012/-.020) dia. 6.0 +0.3/-0.5 (.236 +.012/-.020) 20 (0.78) long 2 plcs. min. 0.8 ?0.05 (.031 ?.002) dia. dimensions: mm (inches) 6.0 + 1.4 (.236 +.055) max. 10.0 0.5 (.394 .020) 52 2 (2.047 .079) 64 3 (2.520 .118) 330 4.0 (12.992 .157) dia. 1.5 (.059) typ. typ. typ. 100.0 (3.937) 68.0 (2.677) 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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