Features RoHS compliant* version available Leadless, surface mount for economical assembly Low capacitance and insertion loss High surge current rating Fast response to transients Compact mini size 2039-xxx-SM Precision, Fast Responding, High Voltage Gas Discharge Tube Bourns now offers miniature Surface Mount (SM) 2-electrode GDT surge protectors with sparkover voltage up to 1100 V. Compatible with pick and place assembly systems and only 5 mm in diameter, the 2039 Series is ideal for board level protection of high bandwidth applications such as xDSL, cable broadband and high speed Ethernet. The 2039 Series features high energy-handling capability, long and stable life performance and low capacitance of less than 1 pF. Bourns GDTs are designed to prevent damage from transient disturbances by acting as a crowbar to create a short-to-ground circuit during conduction. When an electrical surge exceeds the de ned breakdown voltage level of the GDT, the device becomes ionized and conduction takes place within a fraction of a microsecond. When the surge passes and system voltage returns to normal levels, the GDT returns to its high-impedance (off) state. Characteristics Test Methods per ITU-T (CCITT) K.12 and IEEE C62.31 Model No. Characteristic 2039-80-SM 2039-110-SM DC Sparkover 20 % 100 V/s 800 V 1100 V Impulse Sparkover 1000V/s 1250 V 1500 V 9 Insulation Resistance (IR) ................................ 100 V .................................................................> 10 Arc Voltage ...................................................... 1 A .....................................................................~ 10 V Glow-Arc Transition Current .......................................................................................................< 0.5 A Capacitance .................................................... 1 MHz ...............................................................< 1 pF 1 DC Holdover Voltage .................................... 135 V .................................................................< 150 ms 2 Max. Single Discharge .................................. 5 kA ...................................................................> 1 operation 2 Impulse Discharge Current .............................. 2.5 kA, 8/20 s ...............................................> 10 operations 100 A, 10/1000 s.............................................> 100 operations 10 A, 10/1000 s ..............................................> 1500 operations Alternating Discharge Current ......................... 2.5 Arms, 1 s .....................................................> 10 operations Operating and Storage Temperature .......................................................................................... -55 to +85 C Climatic Category (IEC 60068-1) ................................................................................................ 40/90/21 Notes: Surface Mount (SM) parts may show a temporary increase in DCBD after the solder re ow process. Most devices will recover within 24 hours time. It should be noted that there is no quality defect nor change in protection levels during the temporary change in DCBD. 8 Sparkover limits after life +30/-25 %, IR >10 . At delivery AQL 0.65 Level II, DIN ISO 2859. 1 Network applied. 2 DC Sparkover may exceed +30/-25 % but will continue to protect without venting. *RoHS Directive 2015/863, Mar 31, 2015 and Annex. 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. *RoHS COMPLIANT VERSIONS AVAILABLE2039-xxx-SM Precision, Fast Responding, High Voltage Gas Discharge Tube Product Dimensions Recommended Pad Layout 4.0 4.4 (.156) (.173) 5.0 5.1 (.198) (.200) 4.8 DIA. (.190) 1.3 (.050) MM DIMENSIONS: (INCHES) Packaging Speci cations How to Order The Model 2039-xxx-SM ships standard bulk pack, 2039 - xx - SM - RP LF 100 pieces per bag. Model Number Designator Voltage (Divided by 10) -RP Surface Mount The optional reelpack (-RP) contains 1,500 pieces per reel. Packaging Options Reel is 13 inches in diameter and 3/4 inch wide. Blank = Bulk Packaging (Standard) 4.00 RP = Reelpack (Optional) (.158) RP3 = Reelpack (Optional) 1.75 2.00 RoHS Compliant Option (.069) (.079) Blank = Standard Product LF = RoHS Compliant Product 16.0 (.63) 7.5 (.30) 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. F 09/09 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.