features surface mount for economical assembly high surge current rating low capacitance and insertion loss stable breakdown throughout life 8 mm diameter, 6 mm long ul recognized applications telecommunications industrial electronics commercial electronics automotive, aircraft, military electronics characteristics 2027-xx-sm precision gas discharge tube surge protector *rohs directive 2002/95/ec jan 27, 2003 including annex. speci cations are subject to change without notice. customers should verify actual device performance in their speci c applications. test methods per itu-t (ccitt) k.12, ieee c62.31, rus pe-80, telcordia gr 1361 insulation resistance ...................................... 100 v (50 v for models 2027?07-sm & 2027-09-sm) .................................................> 10 10 glow voltage ................................................... 10 ma.......................................................... ......~ 70 v arc voltage ...................................................... > 1a ........................................................ ..........~ 10 v glow-arc transition current ................................................................................................... ....< 0.5 a capacitance .................................................... 1 mhz ......................................................... ......< 1 pf dc holdover voltage ** .................................... 135 v, (52 v for models 2027-07-sm & 2027-09-sm; 80 v for model 2027-15-sm) ...< 150 ms impulse discharge current .............................. 25000 a, 8/20 s *** ........................................... 1 operation minimum 10000 a, 8/20 s ...............................................> 10 operations 2500 a, 10/350 s ............................................ 2 operations 500 a, 10/1000 s ............................................> 400 operations 100 a, 10/1000 s or 10/700 s .......................> 1000 operations alternating discharge current ......................... 65 arms, 11 cycles *** ........................................ 1 operation minimum 10 arms, 1 s ......................................................> 10 operations operating temperature ............................................................................................................... -55 to +85 c climatic category (iec 60068-1) ............................................................................................... . 40/90/21 notes: ul recognized component, ul file e153537. model number marking on tube: 27-xxxv. surface mount (sm) parts may show a temporary increase in dcbd after the solder re? ow process. most devices will recover within 24 hours time. it should be noted that there is no quality defect nor change in protection levels during the temporar y change in dcbd. sparkover limits 20 % after life, ir >10 8 (-25 %, +30 % for models 2027-07-sm, 2027?09-sm and 2027?60-sm). at delivery aql 0.65 level ii, din iso 2859. ** network applied. *** dc sparkover may exceed 20 % after discharge, but will continue to protect without venting. characteristic model no. 2027-07-sm 2027-09-sm 2027-15-sm 2027-20-sm 2027-23-sm 2027-25-sm dc sparkover 15 % (20 % for models 2027-07-sm & 2027-09-sm) @ 100 v/s 75 v 90 v 150 v 200 v 230 v 250 v impulse sparkover 100 v/s 1000 v/s 300 v 500 v 300 v 500 v 350 v 575 v 400 v 600 v 450 v 675 v 475 v 700 v bourns offers an 8 x 6 mm surface mount (sm) 2-electrode gdt surge protection device. the industry-leading quality and features of bourns ? 2027 series gdt continue in this new sm version. compatible with ?pick and place? assembly systems, the 2027-sm is ideal for compact applications such as pcbs for telecommunications, commercial and industrial applications. characteristic model no. 2027-30-sm 2027-35-sm 2027-40-sm 2027-42-sm 2027-47-sm 2027-60-sm dc sparkover 15 % @ 100 v/s 300 v 350 v 400 v 420 v 470 v 600 v impulse sparkover 100 v/s 1000 v/s 550 v 800 v 600 v 875 v 650 v 925 v 675 v 950 v 725 v 1000 v 850 v 1100 v *rohs compliant versions available
how to order 2027 - xx - sm - rp - lf model number designator voltage (divided by 10) 07 = 75 v 15 = 150 v 23 = 230 v 30 = 300 v 40 = 400 v 47 = 470 v 09 = 90 v 20 = 200 v 25 = 250 v 35 = 350 v 42 = 420 v 60 = 600 v surface mount packaging option blank = bulk packaging (standard) rp = 24 mm reelpack (optional) rp2 = 16 mm reelpack (optional) rohs compliant option blank = standard product lf = rohs compliant product 5.84 (.230) 6.42 (.253) 9.9 (.390) dia. dia. 0.43 (.017) 1.78 (.070) 0.71 (.028) 8.25 (.325) 7.93 (.314) 7.92 (.312) 0.76 (.030) r r 7.95 (.374) 8.41 (.331) 9.51 (.374) 4.00 (0.157) .36 (.014) 3.20 (.126) 16.00 (.630) 6.85 (.270) 5.19 (.204) 6.85 (.270) 0.95 (.037) a a section a-a 8.48 (0.334) 0.41 ?0.10 (0.02 ?0.004) 8.08 (0.32) 33 7 16.00 (0.630) 4.00 (0.157) 2.00 (0.079) 1.50 (0.059) dia. 1.75 (0.07) 24.0 (0.94) 11.5 (0.45) 8.48 (0.334) 7.11 (0.28) 7.51 (0.296) speci cations are subject to change without notice. customers should verify actual device performance in their speci c applications. 2027-xx-sm precision gas discharge tube surge protector product dimensions rev. 07/27/11 recommended pad layout dimensions: mm (inches) packaging speci cations model 2027-xx-sm ships standard bulk pack, 100 pcs./bag. the optional reelpack (-rp) contains 500 pcs./reel. reel is 33 cm in diameter and 3 cm wide. the optional reelpack (-rp2) contains 500 pcs./reel. reel is 33 cm in diameter and 3 cm wide. -rp -rp2
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