switching spark gap revision october 18, 2013 1 / 5 @ un semiconductor co., ltd. 2013 specifications are subject to change without notice. please refer to www.unsemi.com.tw for current information. un2k8 series un semiconductor co., ltd. www.unsemi.com.tw un2k8-xxxl un2k8-xxx un2k8-xxxsmd the 2k8 series is a two-terminal, bi-directional, voltage triggered switch, speci ? cally for ignition circuits used in high pressure hid lighting. the gas plasma trigger technology offers very fast switch speeds with improved di/dt values compared to similar function silicon based devices. switching voltages are ? xed depending on the part number selected. materials leaded device: nickel-plated with tinplated wires without wire and surface mount: dull tin-plated product marking union xxxk xxx -nominal voltage k - switch spark gap u non-radioactive u rohs compliant u fast breakdown-time u very high switch speed when switch voltage achieved, high di/dt allows for optimum performance of ignition transformers. u long service life max load current 50ma breakdown time 50ms insulation resistance at dc 100 v >1g capacitance 1.5pf storage temperature -40 to +90 c operational temperature -20 to +125 c un2k8-xxxl ~1.5g un2k8-xxx ~1.35g weight un2k8-xxxsmd ~1.5g u hid xenon discharge lamps ignite u gas stoves u detonating devices(ebw) u transient power u other electronic ignition circuit agency appro vals features schematic symbol description product characteristics applications
switching spark gap revision october 18, 2013 2 / 5 @ un semiconductor co., ltd. 2013 specifications are subject to change without notice. please refer to www.unsemi.com.tw for current information. un2k8 series un semiconductor co., ltd. www.unsemi.com.tw axial leaded devices (un2k8-xxxl) surface mount devices (un2k8-xxxsmd) without wire devices (un2k8-xxx) part number un2k8-230l un2k8-230 un2k8-230smd un2k8-300l un2k8-300 un2k8-300smd UN2K8-350L-1 un2k8-350-1 un2k8-350smd-1 un2k8-350l un2k8-350 un2k8-350smd un2k8-350l-2 un2k8-350-2 un2k8-350smd-2 un2k8-400l un2k8-400 un2k8-400smd nominal breakdown voltage 230v 300v 320v 350v 370v 400v initial values 2) static breakdown voltage 1) first ignition value after 24 hours in darkness following ignition values 260v 195~240v 340v 260~310v 360v 275~330v 400v 300~365v 420v 325~385v 450v 340~420v electrical life 3) breakdown voltage after life test first ignition value after 24 hours in darkness following ignition values 270v 195~265v 360v 260~330v 380v 275~350v 430v 300~385v 450v 325~405v 480v 340~440v switching operations 200000 ignitions 200000 ignitions 200000 ignitions 200000 ignitions 200000 ignitions 200000 ignitions life test circuit open circuit voltage v 0 loading resistance r discharge capacitance c inductance l discharge peak current i p 230v ac 15k 2.2 f 10 h ~300a 350v 10k 680nf 0.5 h ~500a 400v 10k 680nf 0.5 h ~500a 450v 10k 680nf 0.5 h ~500a 450v 10k 680nf 0.5 h ~500a 500v 10k 680nf 0.5 h ~500a maximum switching frequency 100hz 100hz 100hz 100hz 100hz 100hz dimensions unit: mm electrical s pecifications recommended pad outline
switching spark gap revision october 18, 2013 3 / 5 @ un semiconductor co., ltd. 2013 specifications are subject to change without notice. please refer to www.unsemi.com.tw for current information. un2k8 series un semiconductor co., ltd. www.unsemi.com.tw part number un2k8-450l un2k8-450 un2k8-450smd un2k8-500l un2k8-500 un2k8-500smd un2k8-600l-1 un2k8-600-1 un2k8-600smd-1 un2k8-600l un2k8-600 un2k8-600smd un2k8-800l-1 un2k8-800-1 un2k8-800smd-1 un2k8-800l un2k8-800 un2k8-800smd nominal breakdown voltage 450v 500v 550v 600v 730v 800v initial values 2) static breakdown voltage 1) first ignition value after 24 hours in darkness following ignition values 510v 400~475v 570v 450~530v 620v 500~585v 720v 550~640v 850v 640~810v 920v 705~860v electrical life 3) breakdown voltage after life test first ignition value after 24 hours in darkness following ignition values 540v 400~495v 600v 450~560v 650v 500~620v 750v 550~680v 900v 640~840v 950v 705~900v switching operations 200000 ignitions 200000 ignitions 200000 ignitions 200000 ignitions 200000 ignitions 200000 ignitions life test circuit open circuit voltage v 0 loading resistance r discharge capacitance c inductance l discharge peak current i p 550v 10k 680nf 0.5 h ~500a 600v 13k 470nf 0.1 h max.1000a 650v 13k 470nf 0.1 h max.1000a 750v 13k 470nf 0.1 h max.1000a 900v 68k 100nf 0.4 h ~650a 1000v 68k 100nf 0.4 h ~650a maximum switching frequency 100hz 200hz 200hz 200hz 200hz 200hz 1). at delivery aql 0,65 level ii, din iso 2859 2). fig. 1 3). fig. 2 fig. 1: breakdown voltage test circuit fig. 2: electrical life test circuits v dc voltage=1000v discharge current 10 ~20 ma p.v.d. peak voltage detection dut device under test electrical s pecifications (continue) test c ircuit r v dc 0.22 f dut p.v.d. 51k v v 0 c l dut v
switching spark gap revision october 18, 2013 4 / 5 @ un semiconductor co., ltd. 2013 specifications are subject to change without notice. please refer to www.unsemi.com.tw for current information. un2k8 series un semiconductor co., ltd. www.unsemi.com.tw solder iron temperature: 350 c +/-5 c heating time: 5 seconds max. recommended soldering profile w ave solderi ng soldering profile applied a single process reflow soldering soldering parameters - hand soldering part numbering un2k8 C xxx l no, without wire l, with axial wire smd, surface mount nominal breakdown voltage 230 = 230v 500=500v 300 = 300v 600=600v 350 = 350v 800=800v 400 = 400v series
switching spark gap revision october 18, 2013 5 / 5 @ un semiconductor co., ltd. 2013 specifications are subject to change without notice. please refer to www.unsemi.com.tw for current information. un2k8 series un semiconductor co., ltd. www.unsemi.com.tw part number description quantity un2k8-xxxl 100pcs per tray, 10 trays / inner carton 1000 un2k8-xxx 100pcs per tray, 10 trays / inner carton 1000 100pcs per tray, 10 trays / inner carton 1000 un2k8-xxxsmd tape & reel -16mm tape/13 reel 500 tray used in un2k8-xxxl tray used in un2k8-xxx / un2k8-xxxsmd tape used in un2k8-xxxsmd reel u switching spark gaps may be used only within their specified values. u damaged switching spark gaps must not be re-used. packaging information unit: mm cautions and warnings
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