Features
Applications
■ Formerly a
product
■ Igniters for architectural and automotive
Xenon discharge lamps
■ 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
■ Fast switching rate
■ High energy, low loss capability
■ Wide operating temperature range
■ Long service life
■ High insulation resistance
■ RoHS compliant*
ST-1000 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:
1
Static Breakdown Voltage @ 800 V/s
First Ignition Values ..............................................................................................................< 1200 V
Following Ignition Values......................................................................................................1000 V 1ꢀ ꢁ
Electrical Life:
ꢀ
Minimum Number of Switching Cycles.......................................................................................2x10
Peak Current (Approx.)...............................................................................................................400 A
Maximum Switching Frequency..................................................................................................400 Hz
Breakdown Characteristics @ 1400 V Limit
First Ignition Values ..............................................................................................................≤ 1400 V
Delay Time............................................................................................................................< 60 ms
Following Ignition Values......................................................................................................1000 V 20 ꢁ
General Data:
Breakdown Time.........................................................................................................................< ꢀ0 ns
Insulation Resistance @100 Vdc ...............................................................................................> 100 megohms
Share of Early Ignition Values (< 800 V) ....................................................................................< 1 ꢁ
Capacitance................................................................................................................................< 1 pF
2
Operating Temperature Range ................................................................................................-40 °C to +160 °C
Storage Temperature Range ......................................................................................................-6ꢀ °C to +12ꢀ °C
Weight (Approx.).........................................................................................................................2.3 g
Testing........................................................................................................................................100 ꢁ
3
Robustness of Terminations .......................................................................................................IEC 60068-2-21
Notes:
1
At delivery AQL 0.6ꢀ Level II, DIN ISO 28ꢀ9.
2
Distribution of switchings: maximum 20 ꢁ above +12ꢀ °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
Asia-Pacific:
Tel: +886-2 2562-4117
Fax: +886-2 2562-4116
Europe:
LOAD
C
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
*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.