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  features n fast acting n balanced n stable breakdown throughout life n designed to operate with tbu ? devices n rohs compliant* versions available applications n telecommunications n industrial electronics n avionics characteristics 2020 t-series - fast acting 3-electrode miniature gdt tbu is a registered trademark of bourns, inc. in the united states and other countries. *rohs directive 2002/95/ec jan. 27, 2003 including annex and rohs recast 2011/65/eu june 8, 2011. specifcations are subject to change without notice. the device characteristics and parameters in this data sheet can and do vary in different applic ations and actual device performance may vary over time. users should verify actual device performance in their specifc 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 (1) (5 kv/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 v oltage ......................................... >1 a ........................................................................................ ~ 10 v glow-arc transition current ............................................................................................................... < 0.5 a capacitance........................................1 mhz ..................................................................................... < 2 pf dc holdover v oltage (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 (2) ......................................8/20 s, 10 ka......................................................................... 1 operation 10/1000 s, 1 kv, 200 a .......................................................... 100 operations (3) 2/10 s, 6 kv, 2000 a .............................................................. 10 operations (3) 10/700 s, 6 kv, 300 a ............................................................ 50 operations (3) 8/20 s, 500 a, 1.2/50 s, 500 v ............................................ 150 operations (3) 600 v, 10 arms, 0.2 sec.......................................................... 10 operations 600 vrms, 0.5 a - 60 a ............................................................ fail-short activates (4) 230 v rms, 0.5 a-25 a .............................................................. fail-short activates (4) operating temperature range ........................................................................................................... -40 c to +90 c storage t emperature range .............................................................................................................. -55 c to +90 c notes: (2) the rated discharge current is the total current equally divided between each line to ground. (3) surge polarity should be reversed between consecutive surges (+,-,+,-) (4) 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. ? models with the optional fail-short assembly activate at low temperature (215 c C 217 c) when required. these models are designed to be soldered either manually or using a selective soldering process that does not exceed 210 c, below the temperature that the fail-short assembly would activate. *rohs compliant lead free *rohs compliant versions available lead free versions are rohs compliant* 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 test methods per itu-t k.12, ieee c62.31 and iec 61643-311 gdt standards. (1) impulse sparkover voltage is defned as typical values of distribution.
specifcations 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 performance may vary over time. users should verify actual device performance in their specifc applications. 2020 t-series - fast acting 3-electrode miniature gdt 2020-xxt-a1 2020-xxt-c2 2020-xxt-c3 2020-xxt-c4 fail-short configuration 2020-xxt-c2f shown product dimensions (additional lead form confgurations available upon request) units with leads are based on the ta body. 2020-xxt-c 1.0 0.08 mm (.039 .003 in.) dia. lead wire long 2 plcs. 1.0 dia. 7.5 30 long 2 plcs. dia. 7.9 0.2 (.311 .008) dia. 1.0 0.04 (.039 .002) 11.3 0.4 (.449 .016) 30.5 0.4 (1.201 .016) 7.5 0.3 (.295 .012) 8.1 0.3 (.319 .012) 9.6 0.4 (.378 .016) dimensions: mm (inches) dia. 9.0 0.2 (.354 .008) 11.83 0.6 (.466 .024) 0.8 0.3 (.032 .012) 1.53 0.1 (.060 .004) dia. 7.8 0.3 (.307 .012) 2.5 0.25 (.098 .010) dia. dia. 7.9 0.3 (.311 .012) 4.5 0.3 (.177 .012) 4.4 0.3 (.173 .012) 4.4 0.3 (.173 .012) 15.4 0.8 (.606 .032) 13.0 0.8 (.511 .031) dia. 1.0 0.04 (.039 .002) 7.5 0.4 (.295 .016) dia. 7.9 0.3 (.311 .012) dia. 1.0 0.04 (.039 .002) 13.5 0.4 (.531 .016) 7.5 0.4 (.295 .016) 4.5 0.3 (.177 .012) 4.7 0.3 (.185 .012) 4.7 0.3 (.185 .012) dia. 7.9 0.3 (.311 .012) dia. 1.0 0.04 (.039 .002) 13.5 0.4 (.531 .016) 7.5 0.4 (.295 .016) 5.85 0.6 (.230 .024) 5.85 0.6 (.230 .024)
specifcations 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 performance may vary over time. users should verify actual device performance in their specifc applications. 2020 t-series - fast acting 3-electrode miniature gdt 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 c = 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. packaging specifcations model standard packaging quantity bulk (bag) tray box 2020-xxt-a1 250 1000 2020-xxt-c 100 900 2020-xxt-c2 100 900 2020-xxt-c3 100 900 2020-xxt-c4 100 900
specifcations 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 performance may vary over time. users should verify actual device performance in their specifc applications. 2020 t-series - fast acting 3-electrode miniature gdt rev. g 02/16 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 3312 - 2 mm smd trimming potentiometer


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