2-electrode gas discharge tube (gdt) revision october 18, 2013 1 / 4 @ un semiconductor co., ltd. 2013 specifications are subject to change without notice. please refer to www.unsemi.com.tw for current information. un2e5 series un semiconductor co., ltd. www.unsemi.com.tw un2e5-xxxll un2e5-xxxl gas discharge tubes (gdt) are classical components for protecting the installations of the telecommunications. it is essential that it and telecommunications systems -with their high-grade but sensitive electronic circuits - be protected by arresters. they are thus fitted at the input of the power supply system together with varistors and at the connection points to telecommunication lines. they have become equally indispensable for protecting base stations in mobile telephone systems as well as extensive cable television (catv) networks with their repeaters and distribution systems. these protective components are also indispensable in other sectors, in ac power transmission systems, they are often used with current-limiting varistors, in customer premises equipment such as dsl modems, wlan routers, tv sets and cable modems in air-conditioning equipment, the integral black-box concept offers graduated protection by combining arresters with varistors, ptc, diodes and inductor. agency agency file number e341061 materials nickel-plated with tinplated wires u non-radioactive u rohs compliant u low insertion loss u excellent response to fast rising transients u ultra low capacitance u 5ka surge capability tested with 8/20 s pulse as de ? ned by iec 61000-4-5 product marking union xxxl xxx -nominal voltage l -5ka glow to arc transition current < 0.5 amps glow voltage ~60 volts storage and operational temperature -40 to +90 c un2e5-xxxll ~1.0g weight un2e5-xxxl ~0.85g u communication equipment u catv equipment u test equipment u data lines u power supplies u telecom slic protection u broadband equipment u adsl equipment, including adsl2+ u xdsl equipment u satellite and catv equipment u consumer electronics features schematic symbol agency approvals description product characteristics applications
2-electrode gas discharge tube (gdt) revision october 18, 2013 2 / 4 @ un semiconductor co., ltd. 2013 specifications are subject to change without notice. please refer to www.unsemi.com.tw for current information. un2e5 series un semiconductor co., ltd. www.unsemi.com.tw axial leaded devices (un2e5-xxxll) without wire devices (un2e5-xxxl) service life dc spark-over voltage maximum impulse spark-over voltage maximum capacitance arc voltage nominal impulse discharge current max impulse discharge current nominal alternating discharge current impulse life part number marking @100v/s @100v/ s @1kv/ s minimum insulation resistance @1mhz @1a @8/20 s 5 times @8/20 s 1 time @50hz 1 sec 10 times @10/1000 s 300 times un2e5-75ll un2e5-75l 75l 75v 20% 500v 600v 1 g (at 25v) 1.0pf ~15v 5ka 10ka 5a 100a un2e5-90ll un2e5-90l 90l 90v 20% 500v 600v 1 g (at 50v) 1.0pf ~15v 5ka 10ka 5a 100a un2e5-150ll un2e5-150l 150l 150v 20% 500v 600v 1 g (at 50v) 1.0pf ~20v 5ka 10ka 5a 100a un2e5-230ll un2e5-230l 230l 230v 20% 600v 700v 1 g (at 100v) 1.0pf ~20v 5ka 10ka 5a 100a un2e5-250ll un2e5-250l 250l 250v 20% 700v 800v 1 g (at 100v) 1.0pf ~20v 5ka 10ka 5a 100a un2e5-300ll un2e5-300l 300l 300v 20% 800v 900v 1 g (at 100v) 1.0pf ~20v 5ka 10ka 5a 100a un2e5-350ll un2e5-350l 350l 350v 20% 800v 900v 1 g (at 100v) 1.0pf ~20v 5ka 10ka 5a 100a un2e5-400ll un2e5-400l 400l 400v 20% 900v 1000v 1 g (at 100v) 1.0pf ~20v 5ka 10ka 5a 100a un2e5-470ll un2e5-470l 470l 470v 20% 900v 1000v 1 g (at 100v) 1.0pf ~20v 5ka 10ka 5a 100a un2e5-600ll un2e5-600l 600l 600v 20% 1100v 1200v 1 g (at 100v) 1.0pf ~20v 5ka 10ka 5a 100a UN2E5-800LL un2e5-800l 800l 800v 20% 1200v 1400v 1 g (at 100v) 1.0pf ~20v 5ka 10ka 5a 100a notes: 1). terms in accordance with itu-t k.12 and gb/t 9043-2008 2). at delivery aql 0.65 level , din iso 2859 dime nsions ( unit: mm ) electr ical characteristics
2-electrode gas discharge tube (gdt) revision october 18, 2013 3 / 4 @ un semiconductor co., ltd. 2013 specifications are subject to change without notice. please refer to www.unsemi.com.tw for current information. un2e5 series un semiconductor co., ltd. www.unsemi.com.tw item test condition / description requirement dc spark-over voltage the voltage is measured with a slowly rate of rise dv / dt=100v/s impulse spark-over voltage the maximum impulse spark-over voltage is measured with a rise time of dv / dt=100v// s or 1kv/ s insulation resistance the resistance of gas tube shall be measured each terminal each other terminal , please see above spec. capacitance the capacitance of gas tube shall be measured each terminal to each other terminal. test frequency :1mhz nominal impulse discharge current the maximum current applying a waveform of 8/20 s that can be applied across the terminals of the gas tube. one hour after the test is completed, re-testing of the dc spark-over voltage does not exceed 30% of the nominal dc spark-over voltage. dwell time between pulses is 3 minutes. nominal alternating discharge current rated rms value of ac current at 50hz, 1 sec. 10 times. intervals: 3min. the dc spark-over voltage does not exceed 30% of the nominal dc spark-over voltage. ir > 10 8 ohms. to meet the specified value solder iron temperature: 350 c +/-5 c heating time: 5 seconds max. electrical rating recommended soldering profile w ave soldering soldering profile applied a single process reflow soldering soldering parameters - hand soldering
2-electrode gas discharge tube (gdt) revision october 18, 2013 4 / 4 @ un semiconductor co., ltd. 2013 specifications are subject to change without notice. please refer to www.unsemi.com.tw for current information. un2e5 series un semiconductor co., ltd. www.unsemi.com.tw part number description quantity un2e5-xxxll 100pcs per tray, 10 trays / inner carton 1000 un2e5-xxxl 100pcs per tray, 10 trays / inner carton 1000 tray used in un2e5-xxxll tray used in un2e5-xxxl u gas discharge tubes (gdt) must not be operated directly in power supply networks. u gas discharge tubes (gdt) may become hot in case of longer periods of current stress (danger of burning). u gas discharge tubes (gdt) may be used only within their specified values. in the event of overload, the head contacts may fail or the component may be destroyed. u damaged gas discharge tubes (gdt) must not be re-used. part numbering un2e5 C xxx l l l, with axial wire no, without wire 8/20 s level l, 5ka nominal dc spark-over voltage 75 = 75v 350=350v 90 = 90v 470=470v 150 = 150v 600=600v 230 = 230v 800=800v series packaging information unit: mm cautions and warnings
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