high voltage 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. un2e8 / un2h8 series un semiconductor co., ltd. www.unsemi.com.tw un2e8-xxxll un2e8-xxxl un2h8-xxxll un2h8-xxxl the high voltage (1.0 - 6.0kv) gas discharge tubes are designed for surge protection and high isolation applications, and for applications for which bias voltages or signal levels of several hundred volts are normally present. 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 materials nickel-plated with tinplated wires product marking union xxxxl xxxx -nominal voltage l -5ka glow to arc transition current < 0.5 amps glow voltage ~180 volts storage and operational temperature -40 to +90 c un2e8-xxxll ~1.5g un2e8-xxxl ~1.35g un2h8-xxxll ~1.6g u crt terminals u catv equipment u antennas u power supplies u medical electronics weight un2h8-xxxl ~1.45g agency approvals features schematic symbol applications product characteristics description
high voltage 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. un2e8 / un2h8 series un semiconductor co., ltd. www.unsemi.com.tw service life dc spark-over voltage maximum impulse spark-over voltage maximum capacitance arc voltage nominal impulse discharge current max impulse discharge current part number figure marking @100v/s @100v/ s @1kv/ s minimum insulation resistance @1mhz @1a @8/20 s 5 times @8/20 s 1 time un2e8-1000ll 1 un2e8-1000l 3 1000l 1000v 20% 1500v 1600v 1 g (at 100v) 1.5pf ~25v 5ka 10ka un2e8-1600ll 1 un2e8-1600l 3 1600l 1600v 20% 2200v 2400v 1 g (at 100v) 1.5pf ~25v 5ka 10ka un2e8-2000ll 1 un2e8-2000l 3 2000l 2000v 20% 3000v 3500v 1 g (at 100v) 1.5pf ~25v 5ka 10ka un2e8-2500ll 1 un2e8-2500l 3 2500l 2500v 20% 3800v 4000v 1 g (at 100v) 1.5pf ~25v 5ka 10ka un2e8-2700ll 1 un2e8-2700l 3 2700l 2700v 20% 3800v 4000v 1 g (at 100v) 1.5pf ~25v 5ka 10ka un2e8-3000ll 1 un2e8-3000l 3 3000l 3000v 20% 4300v 4500v 1 g (at 100v) 1.5pf ~25v 5ka 10ka un2e8-3500ll 1 un2e8-3500l 3 3500l 3500v 20% 4800v 5000v 1 g (at 100v) 1.5pf ~25v 5ka 10ka un2h8-4000ll 2 un2h8-4000l 4 4000l 4000v 20% 5400v 5600v 1 g (at 100v) 1.0pf ~25v 5ka 10ka UN2H8-4500Ll 2 UN2H8-4500L 4 4500l 4500v 20% 5800v 6000v 1 g (at 100v) 1.0pf ~25v 5ka 10ka un2h8-5000ll 2 un2h8-5000l 4 5000l 5000v 20% 6000v 6500v 1 g (at 100v) 1.0pf ~25v 5ka 10ka un2h8-5500ll 2 un2h8-5500l 4 5500l 5500v 20% 6500v 7000v 1 g (at 100v) 1.0pf ~25v 5ka 10ka un2h8-6000ll 2 un2h8-6000l 4 6000l 6000v 20% 7500v 8000v 1 g (at 100v) 1.0pf ~25v 5ka 10ka 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 dimensions ( unit: mm ) electrical characteristics figure 3 figure 1 figure 2 figure 4
high voltage 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. un2e8 / un2h8 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. to meet the specified value solder iron temperature: 350 c +/-5 c heating time: 5 seconds max. electrical rating recommended soldering profile wave soldering soldering profile applied a single process reflow soldering soldering parameters - hand soldering
high voltage 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. un2e8 / un2h8 series un semiconductor co., ltd. www.unsemi.com.tw part number description quantity un2e8-xxxll 100pcs per tray, 10 trays / inner carton 1000 un2h8-xxxll 50pcs per tray, 10 trays / inner carton 500 un2e8-xxxl 100pcs per tray, 10 trays / inner carton 1000 un2h8-xxxl 100pcs per tray, 10 trays / inner carton 1000 tray used in un2e8-xxxll tray used in un2h8-xxxll tray used in un2e8 / 2h8-xxxl 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 un2e8 C xxx l l l, with axial wire no, without wire 8/20 s level l, 5ka nominal dc spark-over voltage 1000 = 1000v 3000=3000v 1600 = 1600v 3500=3500v 2000 = 2000v 4500=4500v 2500 = 2500v 5500=5500v series packaging inform ation unit: mm cautions and warnings
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