features fast acting balanced stable breakdown throughout life designed to operate with tbu devices rohs compliant* versions available applications telecommunications industrial electronics avionics characteristics 2020 t series - 3-pole fast gas discharge tube ?bu?is a registered trademark of bourns, inc. in the u.s., taiwan and european community. *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. characteristic model no. 2020-15t 2020-23t 2020-42t minimum dc sparkover (100 v/s) throughout service life 60 v 180 v 360 v maximum impulse sparkover (5k v 1.2/50 s) throughout service life 500 v 650 v 850 v impulse transverse delay ...................1000 v/s ............................................................................... < 75 ns insulation resistance (ir) ...................50 v / 100 v .................................................................... ........ > 10 9 glow voltage ......................................10 ma ...................................................................... ............... ~ 70 v arc voltage .........................................>1 a ..................................................................... ................... ~ 10 v glow-arc transition current ................................................................................................... ............ < 0.5 a capacitance .......................................1 mhz ...................................................................... ............... < 1 pf dc holdover voltage (network applied per itu-t k.12) 2020-15t .......................................52 v ..................................................................... ................... < 150 ms 2020-23t .......................................80 v ..................................................................... ................... < 150 ms 2020-42t .......................................135 v .................................................................... .................. < 150 ms service life 1 .......................................8/20 s, 5 ka ......................................................................... . 1 operation 10/1000 s, 1 kv, 100 a.......................................................... 100 operations 2 2/10 s, 5 kv, 1000 a.............................................................. 10 operations 2 10/700 s, 6 kv, 150 a............................................................ 50 operations 2 8/20 s, 500 a, 1.2/50 s, 500 v ............................................ 150 operations 2 600 v, 5 arms, 0.2 sec. ........................................................... 10 operations 600 vrms, 0.5 a - 60 a ........................................................... fail-short activates 3 230 vrms, 0.5 a-25 a ............................................................. fail-short activates 3 operating and storage temperature ............................................................................................. ..... -40 to +90 c climatic category (iec 60068-1) .............................................................................................. ......... 40 / 90 / 21 notes: 1 applied per conductor to center pin. 2 surge polarity should be reversed between consecutive surges (+,-,+,-) 3 applies only to gdt with optional fail-short. gdt operates and will survive with fail-short activation. at delivery aql 0.65 level ii, din iso 2859. *rohs compliant versions available port protection gdt device p/n tbu ? device p/n canbus 2020-23t tbu-ca065-100-wh rs232 2020-23t tbu-ca065-200-wh rs422 2020-23t tbu-ca065-200-wh rs485 2020-23t tbu-ca065-200-wh rs485 2020-42t tbu-ca085-200-wh sdi 2020-23t tbu-ca065-100-wh vdsl 2020-15t tbu-ca050-500-wh applications
speci cations are subject to change without notice. customers should verify actual device performance in their speci c applications. 2020 t series - 3-pole fast gas discharge tube product dimensions (additional lead form con gurations available upon request) how to order 2020 - xxt - x x f lf model number designator voltage 15 = 60 v 23 = 180 v 42 = 360 v leads a = none/cassette applications cn = 1 mm dia. leads/through-hole lead shape (see product dimension drawings) fail-short option blank = standard product f = with fail-short mechanism rohs compliant option blank = standard product lf = rohs compliant product model 2020-xxt ships in standard bulk pack, 100 pcs./tray. 2020-xxt-a dimensions: millimeters units with leads are based on the 2020-xxt-a1 body. 0.6 1.6 9.0 11.7 7.8 2020-xxt-a1 0.7 - 1.0 1.0 dia. 7.9 11.2 ref. 2020-xxt-c2 13.0 max. 15.4 4.5 4.4 4.4 1.0 dia. 2020-xxt-c3 7.5 4.4 4.75 4.75 1.0 dia. 2020-xxt-c4 7.5 6.1 6.1 1.0 dia. 2020-xxt-c8 1.0 dia. 7.5 2020-xxt-c 1.0 mm dia. lead wire 1.0 dia. 30 long 2 plcs. 7.5 fail-short configuration 2020-xxt-c2f shown 8.1 9.6
speci cations are subject to change without notice. customers should verify actual device performance in their speci c applications. 2020 t series - 3-pole fast gas discharge tube rev. c 04/11 switch-grade fail-short device shorting curve 2020-xxt-xf 10.0 20.0 30.0 5.0 current (a) (eltgs) 1.0 0.5 0.1 1 10 100 eltgs = each line to ground simultaneously note: when using a gdt fail-short device, it is imperative that all components associated and connected to the gdt with failsafe be tested in their respective completely integrated environment (finished product) to assure desired operation. seconds 1000
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