Surface Mount 2-Electrode Gas Discharge Tube (GDT) UN2E5-SMD Series Description 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 Schematic Symbol 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. Product Characteristics Agency Approvals Features 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 8/20μs pulse as defined by IEC 61000-4-5 Applications u u u u u u u u u u u Communication equipment CATV equipment Test equipment Data lines Power supplies Telecom SLIC protection Broadband equipment ADSL equipment, including ADSL2+ XDSL equipment Satellite and CATV equipment Consumer electronics Dull Tin-plated Product Marking Without Glow to Arc Transition Current < 0.5 Amps Glow Voltage ~60 Volts Storage and Operational Temperature -40 to +90°C Weight ~0.5g Climatic category (IEC 60068-1) SOCAY Electronics Co., Ltd. Revision March 6, 2014 Materials 40/ 90/ 21 www.socay.com 1/4 @SOCAY Electronics Co., Ltd. 2014 Specifications are subject to change without notice. Please refer to www.socay.com for current information. Surface Mount 2-Electrode Gas Discharge Tube (GDT) UN2E5-SMD Series Device Dimensions (Unit: mm) Recommended pad outline Electrical Characteristics Service Life Part Number DC Spark-over Voltage @100V/S Maximum Impulse Spark-over Voltage Nominal Max Nominal Maximum Arc Impulse Alternating Impulse Minimum Capacitance Voltage Impulse Life Discharge Discharge Discharge Insulation Current Current Current Resistance @50Hz @8/20μs @8/20μs @10/1000μs @100V/μs @1KV/μs @1MHz @1A 1 Sec ±5 times 1 time 300 times 10 times 1 GΩ ＜500V ＜650V ＜1.0pF ~15V 5KA 10KA 5A 100A UN2E5-90LSMD 90V±20% UN2E5-150LSMD 150V±20% ＜500V ＜650V UN2E5-200LSMD 200V±20% ＜500V ＜650V UN2E5-230LSMD 230V±20% ＜600V ＜700V UN2E5-300LSMD 300V±20% ＜700V ＜800V UN2E5-350LSMD 350V±20% ＜700V ＜800V UN2E5-400LSMD 400V±20% ＜800V ＜950V UN2E5-470LSMD 470V±20% ＜900V ＜1000V UN2E5-600LSMD 600V±20% ＜1100V ＜1200V (at 50V DC) 1 GΩ (at 50V DC) 1 GΩ (at 100V DC) 1 GΩ (at 100V DC) 1 GΩ (at 100V DC) 1 GΩ (at 100V DC) 1 GΩ (at 100V DC) 1 GΩ (at 100V DC) 1 GΩ (at 100V DC) ＜1.0pF ~20V 5KA 10KA 5A 100A ＜1.0pF ~20V 5KA 10KA 5A 100A ＜1.0pF ~20V 5KA 10KA 5A 100A ＜1.0pF ~20V 5KA 10KA 5A 100A ＜1.0pF ~20V 5KA 10KA 5A 100A ＜1.0pF ~20V 5KA 10KA 5A 100A ＜1.0pF ~20V 5KA 10KA 5A 100A ＜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 Ⅱ, DIN ISO 2859 SOCAY Electronics Co., Ltd. Revision March 6, 2014 www.socay.com 2/4 @SOCAY Electronics Co., Ltd. 2014 Specifications are subject to change without notice. Please refer to www.socay.com for current information. Surface Mount 2-Electrode Gas Discharge Tube (GDT) UN2E5-SMD Series Electrical Rating Item Test Condition / Description DC Spark-over Voltage Impulse Spark-over Voltage Insulation Resistance Capacitance Requirement The voltage is measured with a slowly rate of rise dv / dt=100V/s The maximum impulse spark-over voltage is measured with a rise time of dv / dt=100V//μs or 1KV/μs The resistance of gas tube shall be measured each terminal each other terminal, please see above spec. The capacitance of gas tube shall be measured each terminal to each other terminal. Test frequency :1MHz The maximum current applying a waveform of 8/20μs 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. I 1.0 0.9 To meet the specified value Nominal Impulse Discharge Current 0.5 0.1 0.0 8μsec 20μsec Nominal Alternating Discharge Current 30% Max T 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. 8 IR > 10 ohms. Recommended soldering profile Reflow Condition TP Ramp-up Pre Heat Critical Zone TL to TP Temperature TL TS(max) Ramp-down TS(min) -Temperature Min (Ts(min)) 150°C -Temperature Max (Ts(max)) 200°C - Time (min to max) (ts) 60 -180 Seconds Average ramp up rate ( Liquidus Temp TL) to peak 3°C/second max TS(max) to TL - Ramp-up Rate 5°C/second max Reflow Preheat Pb - Free assembly - Temperature (TL) (Liquidus) 217°C - Time (min to max) (ts) 60 -150 Seconds Peak Temperature (TP) 25 Time to peak temperature (t 25℃ to peak) Time Time within 5°C Temperature (tp) 260 +0/-5°C of actual Ramp-down Rate SOCAY Electronics Co., Ltd. Revision March 6, 2014 peak 10 - 30 Seconds 6°C/second max Time 25°C to peak Temperature (TP) 8 minutes Max Do not exceed 260°C www.socay.com 3/4 @SOCAY Electronics Co., Ltd. 2014 Specifications are subject to change without notice. Please refer to www.socay.com for current information. Surface Mount 2-Electrode Gas Discharge Tube (GDT) UN2E5-SMD Series Part Numbering UN2E5 – XXX L SMD SMD, Surface Mount 8/20μs Level L, 5KA Nominal DC Spark-over Voltage 90 = 90V 350=350V 150 = 150V 400=400V 200 = 200V 470=470V 230 = 350V 600=600V Series Tape and Reel Dimensions Unit: mm Packaging Part Number Packaging Option Quantity UN2E5-XXXLSMD Tape & Reel -16mm tape/13″Reel 1000 Cautions and warnings 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. SOCAY Electronics Co., Ltd. Revision March 6, 2014 www.socay.com 4/4 @SOCAY Electronics Co., Ltd. 2014 Specifications are subject to change without notice. Please refer to www.socay.com for current information.