Features Applications Fast acting Telecommunications Small size Industrial electronics Stable breakdown throughout life Avionics Designed to operate with TBU devices RoHS compliant* versions available UL Recognition pending 2031-xxT-SM Series - Miniature 2-Pole Gas Discharge Tube Characteristics Model No. Characteristic 2031-15T 2031-23T 2031-42T Minimum DC Sparkover (100 V/s) 60 V 185 V 360 V Throughout Service Life Maximum Impulse Sparkover (5k V 1.2/50 s) 500 V 650 V 850 V Throughout Service Life 9 Insulation Resistance (IR) .......................................50 / 100 V ............................................................................... > 10 Glow Voltage ..........................................................10 mA ..................................................................................... ~ 70 V Arc Voltage .............................................................>1 A ........................................................................................ ~ 10 V Glow-Arc Transition Current ................................................................................................................................... < 0.5 A Capacitance ........................................................... 1 MHz ..................................................................................... < 1 pF DC Holdover Voltage (Network Applied per ITU-T K.12) 2031-15T ...........................................................52 V ....................................................................................... < 150 ms 2031-23T ...........................................................80 V ....................................................................................... < 150 ms 2031-42T ...........................................................135 V ..................................................................................... < 150 ms Service Life .............................................................8/20 s, 1 kA .......................................................................... 2 operations 10/1000 s, 1 kV, 100 A ........................................................ 50 operations 2/10 s, 5 kV, 500 A ............................................................... 20 operations 10/700 s, 6 kV, 150 A ........................................................... 10 operations 8/20 s 250 A, 1.2/50, 500 V (IEC61643-21) ......................... 150 operations 600 V rms, 1 A, 0.2 s .............................................................. 5 operations Operating and Storage Temperature, Climatic Category (IEC 6068-1) 40 / 90 / 21 .......................................................................................................... -40 to +90 C Notes: Surge polarity should be reversed between consecutive surges. (+-+-). At delivery AQL 0.65 Level II, DIN ISO 2859. Applications Port Protection GDT Device P/N TBU Device P/N CanBus 2031-23T-SM-RPLF TBU-CA065-100-WH RS232 2031-23T-SM-RPLF TBU-CA065-200-WH RS422 2031-23T-SM-RPLF TBU-CA065-200-WH RS485 2031-23T-SM-RPLF TBU-CA065-200-WH RS485 2031-42T-SM-RPLF TBU-CA085-200-WH SDI 2031-23T-SM-RPLF TBU-CA065-100-WH VDSL 2031-15T-SM-RPLF TBU-CA050-500-WH TBU is a registered trademark of Bourns, Inc. in the U.S., Taiwan and European Community. *RoHS Directive 2002/95/EC Jan 27, 2003 including Annex. Speci cations are subject to change without notice. Customers should verify actual device performance in their speci c applications. *RoHS COMPLIANT VERSIONS AVAILABLE 2031-xxT-SM Series - Miniature 2-Pole Gas Discharge Tube Product Dimensions Recommended Pad Layout 4.4 3.9 (.173) (.155) 5.0 5.6 (.195) (.220) 4.8 DIA. (.190) 1.3 (.050) Packaging Speci cations MM DIMENSIONS: The Model 2031-xxT-SM ships standard bulk pack, (INCHES) 100 pieces per bag. How to Order -RP The optional -RP reelpack contains 1,500 pieces per reel. 2031 - xxT - SM - RP LF Reel is 13 inches in diameter and 3/4 inch wide. Model Number Designator 4.00 Voltage (.158) 15 = 60 V 1.75 2.00 23 = 185 V (.069) (.079) 42 = 360 V Surface Mount Packaging Options Blank = Bulk Packaging - 100 pcs./bag (Standard) 16.0 RP = Reelpack - 1,500 pcs./reel (Optional) (.63) RP3 = Reelpack - 1,000 pcs./reel (Optional) 7.5 (.30) Lead Free Option Blank = Standard Product LF = Lead Free / RoHS Compliant Product 8.00 (.315) -RP3 The optional -RP3 reelpack contains 1,000 pieces per reel. Reel is 13 inches in diameter and 11/16 inch wide. 12.00 4.00 (.473) (.158) 12.00 1.27 (.473 .050) MM DIMENSIONS: (INCHES) REV. A 11/10 Speci cations are subject to change without notice. Customers should verify actual device performance in their speci c applications.