PL IA N T Features Applications M ■ Formerly a product CO *R oH S ■ Igniters for architectural and automotive Xenon discharge lamps ■ Fast switching rate ■ High energy, low loss capability ■ Wide operating temperature range ■ Long service life ■ High insulation resistance ■ Electronic igniters for gas heating and gas domestic appliances, e.g., cookers ■ Ignition of ultra-high pressure gas discharge lamps for data and video projectors ■ RoHS compliant* ST-0620 Series Sparctube™ Switching Spark Gap Description Bourns® Sparctube™ Series is a range of switching spark gaps designed specifically for voltage controlled switching of capacitive discharge circuits where a high energy, low loss, fast rate of switching is required. This series is ideally suited for applications where a capacitive discharge is utilized with a transformer to obtain pulses of very high voltage levels in the order of several thousand volts. Characteristics Initial Values: Static Breakdown Voltage @ 800 V/s 1 First Ignition Values ..............................................................................................................< 750 V Following Ignition Values ......................................................................................................620 V ±12 % Electrical Life: Minimum Number of Switching Cycles .......................................................................................2x105 Peak Current (Approx.)...............................................................................................................750 A Maximum Switching Frequency..................................................................................................200 Hz Breakdown Characteristics @ 750 V Limit First Ignition Values ..............................................................................................................≤ 750 V Delay Time............................................................................................................................< 90 ms Following Ignition Values ......................................................................................................620 V ±15 % General Data: Breakdown Time .........................................................................................................................< 50 ns Insulation Resistance @100 Vdc ...............................................................................................> 100 megohms Share of Early Ignition Values (< 527 V) ....................................................................................< 1 % Capacitance................................................................................................................................< 1 pF Operating Temperature Range 2 ................................................................................................-40 °C to +160 °C Storage Temperature Range ......................................................................................................-65 °C to +125 °C Weight (Approx.).........................................................................................................................2.3 g Testing ........................................................................................................................................100 % Robustness of Terminations .......................................................................................................IEC 60068-2-21 3 Notes: 1 At delivery AQL 0.65 Level II, DIN ISO 2859. 2 Distribution of switchings: maximum 20 % above +125 °C and 20 % below +20°C. 3 Test Ua1 (tensile), Ua2 (thrust), Ub (bending) and Uc (torsion). Basic Application Circuit Sparctube™ Switching Spark Gap R C LOAD *RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011. Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications. Asia-Pacific: Tel: +886-2 2562-4117 Fax: +886-2 2562-4116 Europe: Tel: +41-41 768 5555 Fax: +41-41 768 5510 The Americas: Tel: +1-951 781-5500 Fax: +1-951 781-5700 www.bourns.com ST-0620 Series Sparctube™ Switching Spark Gap Product Dimensions How to Order ST - 0620 - B x x - STD ST-0620-BLx 8.0 +0.1/-0.3 (.315 +.004/-.012) DIA. CERAMIC INSULATOR Series Designator Switching Voltage 0620 = 620 V METAL ELECTRODE TINNED LEADS 1.0 (.039) DIA. Tolerance B = 12 % Lead Shape B = Bent Leads C = No Leads* L = Straight Leads 5.8 ± 0.3 (.228 ± .012) 60.0 - 82.0 (2.362 - 3.228) Packaging B = Bulk T = Tape & Reel* Standard or Modified Product Indicator STD = Standard ST-0620-BCx 8.0 +0.1/-0.3 (.315 +.004/-.012) DIA. CERAMIC INSULATOR *Leadless version available in bulk packaging only. METAL ELECTRODE Typical Part Marking ST 0620 wwy ...... “wwy” = Week and year of production 5.8 ± 0.3 (.228 ± .012) ST-0620-BBx 5.8 ± 0.3 (.228 ± .012) 8.6 (.339) MAX. 8.0 +0.1/-0.3 (.315 +.004/-.012) DIA. 8.4 (.331) MAX. 1.00 (.039) DIA. 0.25 +0.15/-0.05 (.010 +.006/-.002) 0.20 (.008) APPROX. DIMENSIONS: 2.52 ± 0.20 (.099 ± .008) MM (INCHES) 8.4 (.331) MAX. Test Circuit R Uo L C DUT Us Uo .........750 V R ...........See Note C ...........470 nF L............0.5 µH DUT ......Device Under Test Us .........Breakdown Voltages NOTE: Uo and R are set to provide suitable conditions for different measurements. Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications. ST-0620 Series Sparctube™ Switching Spark Gap Packaging Specifications Models ST-0620-BBB, ST-0620-BLB and ST-0620-BCB* ship standard bulk pack, 1,000 pcs./bag. The optional tape and reel packaging contains 1,000 pcs./reel for Model ST-0620-BLT; 500 pcs./reel for Model ST-0620-BBT. * Available in bulk packaging only. ST-0620-BLT ST-0620-BBT 2.2 ± 0.5 (.087 ± .020) 16.5 ± 0.1 (.650 ± .004) 20.2 ± 1.0 (.795 ± .039) 14.0 +1.0/-0.0 (.551 +.039/-.00) DIA. 100 ± 1.0 (3.937 ± .039) 90.0 ± 2.0 (3.543 ± .079) 13.0 ± 0.2 (.512 ± .008) 90.0 ± 2.0 (3.543 ± .079) 356.0 ± 2.0 (14.016 ± .079) DIA. 330 (12.992) 105.0 (4.134) 4.0 ± 0.1 (.157 ± .004) 2.0 ± 0.1 (.079 ± .004) 12.0 ± 0.1 (.472 ± .004) 12.0 ± 0.1 (.472 ± .004) 1.75 (.069) C B 10.0 ± 1.0 (.394 ± .039) SPACING 7.50 (.295) 6.2 ± 1.0 (.244 ± .039) A 85.0 ± 2.0 (3.346 ± .079) A C B 9.1 +0.2/-0.0 (.358 +.008/-.000) DIMENSIONS: 16.0 (.630) 8.2 +0.2/-0.0 (.323 +.008/-.000) 0.50 ± 0.05 (.020 ± .002) MM (INCHES) SECTION C-C SECTION B-B 8.5 +0.15/-0.05 (.335 +.006/-.002) REV. 10/12 “Sparctube” is a registered trademark of Bourns, Inc. in the European Community, with pending trademark registration applications in the U.S. and China. Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications. 9.3 ± 0.1 (.366 ± .004) SECTION A-A