Features Applications Compact size: 5.5 mm diameter, Telecommunications equipment 6 mm length Industrial equipment/electronics Low capacitance Consumer electronics Low leakage RoHS compliant* UL Recognized 2057 Series Light Duty 2-Electrode Miniature Gas Discharge Tube Characteristics Test Methods per ITU-T K.12 and IEC 61643-311. Model No. Characteristic 2057-07 2057-09 2057-12 2057-13 2057-15 2057-23 DC Sparkover 20 % 100 V/s 75 V 90 V 120 V 130 V 150 V 230 V (1) Impulse Sparkover 100 V/ s < 700 V < 600 V < 600 V < 600 V < 600 V < 600 V 1000 V/ s < 800 V < 700 V < 700 V < 700 V < 700 V < 700 V Model No. Characteristic 2057-25 2057-30 2057-35 2057-40 2057-47 DC Sparkover 20 % 100 V/s 250 V 300 V 350 V 400 V 470 V (1) Impulse Sparkover 100 V/ s < 600 V < 700 V < 700 V < 800 V < 900 V 1000 V/ s < 700 V < 900 V < 900 V < 1000 V < 1100 V (1) Impulse Sparkover voltage is de ned as typical values of distribution. (2) Insulation Resistance (IR) ....................................50 / 100 / 250 Vdc ................................................. > 1 G Glow Voltage ...........................................................10 mA ..................................................................... ~ 70 V Arc Voltage ..............................................................1 A .......................................................................... ~ 10 V Glow-Arc Transition Current .................................................................................................................... < 1 A Maximum Capacitance ............................................1 MHz ..................................................................... < 1 pF Maximum Impulse Discharge Current .....................10,000 A, 8/20 s .................................................. 1 operation 5,000 A, 8/20 s ..................................................... 10 operations Nominal Alternating Discharge Current ...................5 A, 50 Hz, 1 second .............................................. 1 operation 15 A, 9 cycles ........................................................ 1 operation Impulse Life ............................................................100 A, 10/1000 s .................................................. 300 operations (3) DC Holdover Voltage ........................................................................................................................... < 150 ms Operating Temperature ............................................................................................................................ -40 to +90 C Storage Temperature ............................................................................................................................... -40 to +90 C Climatic Category (IEC 60068-1)............................................................................................................. 40 / 90 / 21 Notes: UL Recognized component, UL File E153537. At delivery AQL 0.65, level II DIN ISO 2859 (2) DC Sparkover Voltage DC Measuring Voltage 7590 V 50 V 120400 V 100 V 470 V 250 V (3) Network Applied DC Sparkover Voltage DC Holdover Voltage 75145 V 52 V 230250 V 80 V 300470 V 150 V *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 WARNING Cancer and Reproductive Harm applications. The products described herein and this document are subject to specic legal disclaimers as set forth on the www.P65Warnings.ca.gov last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf. *RoHS COMPLIANT2057 Series Light Duty 2-Electrode Miniature Gas Discharge Tube Product Dimensions 0.8 0.05 20 MIN. (.031 .002) (0.78) DIA. LONG 2 PLCS. 5.5 +0.3/-0.5 (.217 + .012/-.020) DIA. MM DIMENSIONS: (INCHES) 6.0 +0.3/-0.5 (.236 +.012/-.020) Packaging Speci cations Model 2057 ships standard bulk, 100 pcs. per tray 5 trays per box (500 units). The optional reelpack (-BT1) contains 500 pcs. per reel 2 reels per box (1K units). 330 4.0 6.0 + 1.4 (12.992 .157) (.236 +.055) DIA. MAX. 1.5 (.059) TYP. 10.0 0.5 (.394 .020) 100.0 (3.937) TYP. 52 2 MM (2.047 .079) DIMENSIONS: 68.0 (INCHES) TYP. (2.677) 64 3 (2.520 .118) How to Order 2057 - xx - B T1 LF Model Number Designator Voltage (Divided by 10) Asia-Pacific: 07 = 75 V 25 = 250 V 09 = 90 V 30 = 300 V Tel: +886-2 2562-4117 12 = 120 V 35 = 350 V Email: asiacus bourns.com 13 = 130 V 40 = 400 V Europe: 15 = 150 V 47 = 470 V 23 = 230 V Tel: +36 88 885 877 Email: eurocus bourns.com Leads B = 0.8 mm The Americas: Packaging Tel: +1-951 781-5500 (Blank) = Bulk Packaging (Standard) Email: americus bourns.com T1 = Reelpack (Optional) www.bourns.com RoHS Compliancy LF = RoHS Compliant Product REV. B 09/19 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 disclaimers as set forth on the last page of this document, and at www.bourns.com/legal/disclaimer.pdf.