1 / 3 b 3d 420 l - c specifications are subject to change without notice. customers should verify actual device performance in their specific applications www.bencent.com.cn order code: b3d 420 l - c gas discharge tube version: a 0 2013 - 09- 17 ` surface mounting design 7. 6 5.0 5.8 mm high current handling capability 5 ,000a @ 8/20 s low capacitance and insertion loss quick response and long service life moisture sensitivity level level 1 electrical parameter xdsl schematic symbol application info rmation package (top view ) features exterio r sm d agency approvals dc breakdown voltage 1)2) 100v/s 336 - 504 v impulse spark - over voltage at 1kv/ s for 99 % of measured values 95 0 v at 1kv/ s typical values of distribution 9 00 v impulse discharge current 3) 8/20 s 5 ,000 a arc voltage at 1a ~8 v insulation resistance dc=50v 1 g capacitance at 1mhz v dc= 0.5v 1. 5 pf weight ~ 1.1 g operating a nd s torage temperature - 40 - 90 marking bencent logo yy mm b3d 420 l - c y y year of production m m month of production 1) at delivery aql 0.65 level ii gb/t 2828.1 - 2003 2) in ionized mode 3) terms and waveforms in accordance with itu - t rec. k. 12; iec 61643 - 21 i con description compliance with 2011/65/eu compliance with iec61249 - 2 - 21:2003 m ean lead free ul certificated e232249 3 2 1 3 2 1
2 / 3 b 3d 420 l - c specifications are subject to change without notice. customers should verify actual device performance in their specific applications www.bencent.com.cn order code: b3d 420 l - c gas discharge tube version: a 0 2013 - 09- 17 ref mm inch a 9.6 0.378 b 1.5 0. 059 c 1.5 0.059 d 5.0 0.197 b3d 420 l - c (1) (2) ( 3) (4) (1) bencent 3 - electrode smd gas discharge tube 7.6 5 .0 5 . 8 mm (2) dc breakdown voltage, e.g., 420 = 42 0 v (3) surge rating @8/20 s, l = 5 ,000a total impulse discharge current 5,000a @ 8/20 s (4) - c means it i s suitable for high - speed smt part numbering system environmental reliability characteristics lead material c opper body material c eramics terminal finish 100% matte - tin plated product characteristics testing items t echnical standards high temperature storage test temperature: 85 time:2h low temperature storage test temperature : - 40 time:2h vibration frequency 10 - 500hz amplitude 0.15mm time 45min resistance of soldering heat temperature: 2605 time of dip soldering 10s 1time note: up - screen program can be specified by customer?s request via contacting bencent service solderability test solderability solder pot temperature: 245 5 solder dwell time: 4- 6 seconds r ecommended s oldering p ad product dimensions ref mm inch a 7.6 0.3 0.299 0.012 b 0.5 0. 2 0.020 0.008 c 1.6 0. 2 0.063 0.008 d 0.5 0. 2 0.020 0.008 e 5.0 0. 2 0.197 0.008 f 5.0 0. 2 0.197 0.008 g 5.8 0.3 0.228 0.012 a b c d e f g d b a c
3 / 3 b 3d 420 l - c specifications are subject to change without notice. customers should verify actual device performance in their specific applications www.bencent.com.cn order code: b3d 420 l - c gas discharge tube version: a 0 2013 - 09- 17 reflow condition pb - free assembly pre heat temperature min 150c temperature max 200c time min to max 60 ? 180 secs a verage ramp up rate liquids tamp t l to peal 3c/second max t s (max) to t l - ramp - up rate 3c/second max reflow - temperature (t l ) (liquids) 217c - temperature ( t l ) 60 ? 150 seconds peak temperature (t p ) 260+0/ - 5 c time within 5c of actual peak temperature ( t p) ~10 seconds ramp - down rate 6c/second max time 25c to peak temperature (t p ) 8 minutes max. do not exceed 260c ref m m inch a 5.4 0.1 0.216 0 .004 b 8 . 4 0.1 0.331 0 .004 d 1.5 0.1 0.059 0 .004 p0 4.0 0.1 0 .157 0 .004 p1 2.0 0 .1 0 .079 0 .004 p 8.0 0.1 0 .315 0 .004 e 1.75 0.1 0.069 0 .004 f 7 . 5 0. 1 0.295 0 .00 4 w 1 6 .0 0. 3 0.630 0. 012 d 330.0 13.0 d1 50min 1.97min d2 13 0.15 0 .512 0 .0 06 w1 16.8 2.0 0 .661 0 .079 p ackage r eel i nformation r eflow p rofile o utline r eel (pcs) p er c arton (pcs) r eel d iameter (mm) c arton s ize (mm) l w h taping 1 ,000 16 ,000 330 360 360 3 8 0 t p ramp - down t p t l t s(max) t s(min) 25 t ime to peak temper ature time temperature critical zone t l to t p t l preheat ramp - up t s
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