Features Applications Bourns FLAT GDT technology Telecom CPE Flexible mounting options Industrial Communications Low prole, space-saving design Surge Protective Devices 10x 20 kA 8/20 s rating High density PCB assemblies UL Recognized RoHS compliant* 2018 Series Gas Discharge Tube Surge Arrestor with FLAT Technology Bourns sets a new industry standard by offering this 3-electrode Gas Discharge Tube (GDT) in an innovative flat package design. The Model 2018 Series with FLAT Technology provides a low profile, space-saving solution for space-restricted PCB applications. Characteristics Test Methods per ITU-T (CCITT) K.12 Class 3 and IEC 61643-311 Model No. Characteristic 2018-09 2018-15 2018-23 2018-35 2018-42 2018-50 (1) DC Sparkover 20 % 100 V/s 90 V 150 V 230 V 350 V 420 V 500 V (2) DC Sparkover End-of-Life Values Maximum (99 % of values) <120 V <195 V <300 V <455 V <550 V <650 V Minimum (99 % of values) >65 V >110 V >170 V >260 V >315 V >375 V (3) Impulse Sparkover Voltage 100 V/s Typical / For 99 % of Values 350 / <600 V 400 / <750 V 450 / <900 V 600 / <1050 V 700 / <1150 V 800 / <1250 V 1 kV/s Typical / For 99 % of Values 650 / <850 V 650 / <900 V 600 / <1000 V 800 / <1250 V 900 / <1400 V 1000 / <1600 V Insulation Resistance (IR) ..................100 V (50 V for Model 2018-09)............................................. >1 G Glow Voltage ......................................10 mA..................................................................................... ~70 V Arc Voltage .........................................>1 A ........................................................................................ ~10 V Capacitance........................................1 MHz..................................................................................... <2.5 pF (4) (5) Impulse Discharge Current ............24,000 A, 8/20 s ............................................................... 1 operation 20,000 A, 8/20 s ................................................................... >10 operations 5,000 A, 10/350 s ................................................................. 1 operation 200 A, 10/1000 s ................................................................. >300 operations 20 A, 10/1000 s ...................................................................>1500 operations Alternating Discharge Current ............10 Arms, 1 s ........................................................................... >10 operations Operating/Storage Temperature......................................................................................................... -55 to +105 C Climatic Category (IEC 60068-1)........................................................................................................ 55/105/21 Moisture Sensitivity Level................................................................................................................... 1 ESD Classification.............................................................................................................................. 3B (>8000 V) Notes: UL Recognized component, UL File E153537 DC Breakdown and Impulse Sparkover voltage are specified line to ground. Line to Line values are typically 1.8 to 2 times the stated line to ground values. (1) (4) In ionized mode. Total current rating through center electrode half value each line to center electrode. 8 (2) (5) IR after life >10 . DC Sparkover may exceed 25 % after discharge, but will continue to protect without venting. (3) At delivery AQL 0.65 Level II, DIN ISO 2859. How to Order 2018 - xx - SMH - RP LF Series Designator 2018 = 3-electrode GDT with FLAT Technology, 20 kA 8/20 s rated Voltage WARNING Cancer and Reproductive Harm 09 = 90 V 23 = 230 V 42 = 420 V www.P65Warnings.ca.gov 15 = 150 V 35 = 350 V 50 = 500 V *RoHS Directive 2015/863, Mar 31, 2015 and Annex. Configuration FLAT is a registered trademark of Bourns, Inc. in the U.S. and other countries. SMH = Horizontal Mount SMD Specications are subject to change without notice. Packaging Users should verify actual device performance in their specic applications. RP = Reelpack (Standard) The products described herein and this document are subject to specic legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/ RoHS Compliancy disclaimer.pdf. LF = RoHS Compliant Product 2916 *RoHS COMPLIANT 2018 Series Gas Discharge Tube Surge Arrestor with FLAT Technology Product Dimensions 8.00 +0.10/-0.30 10.90 0.20 (.315 +.004/-.012) (.429 .008) DIA. MM DIMENSIONS: (INCHES) 18-XXX XXXX 2.00 0.30 0.50 0.10 2.50 0.20 (.079 .012) (.020 .004) (.098 .008) 3.70 0.30 1.00 0.20 2 PLCS. (.146 .012) (.039 .008) 1.00 COPLANARITY BETWEEN TERMINALS NOT TO EXCEED (.039) Pad Layout Typical Part Marking VOLTAGE: 0.25 90 V MANUFACTURERS R 150 V (.010) TRADEMARK 230 V 12 PLCS. 420 V GRID 500 V PLACEMENT COURTYARD 18-XXX XXXX 9.58 (.377) 13.30 DATE CODE: DIA. (.524) WWYY = WEEK AND YEAR 7.22 11.62 OF MANUFACTURE (.284) (.457) DIA. 6.50 (.256) 0.84 (.033) 1.02 2 PLCS. (.040) 0.84 (.033) 3.12 (.123) 0.05 2 PLCS. TOLERANCE: 4.80 (.002) (.189) Asia-Pacific: Tel: +886-2 2562-4117 Email: asiacus bourns.com EMEA: Tel: +36 88 885 877 Email: eurocus bourns.com The Americas: Tel: +1-951 781-5500 Email: americus bourns.com www.bourns.com Specications are subject to change without notice. Users should verify actual device performance in their specic applications. The products described herein and this document are subject to specic legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.