Features
■ Through-hole or cassette mount
■ Low capacitance and insertion loss
■ High surge current rating
■ Fast response to transients
■ Compact “mini” size
■ RoHS compliant* version available
2039-xxx-XX Precision, Fast Responding, High Voltage Gas Discharge Tube
Bourns now offers miniature through-hole 2-electrode GDT surge protectors with sparkover voltage up to 1100 V. At 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 within rated limits by acting as a “crowbar” to create a
short-to-ground circuit during conduction. When an electrical surge exceeds the defined breakdown voltage level of the GDT, the
device becomes ionized and rapid conduction takes place. 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 K.12, IEEE C62.31 and IEC 61643-311 GDT standards.
Model No.
Characteristic
2039-80
800 V
1250 V
2039-110
1100 V
1500 V
DC Sparkover 20 ꢀ ꢁ 100 Vꢂs
Impulse Sparkover ꢁ 1000 Vꢂµs
(1)
(1)
Impulse Sparkover voltage is defined as typical values of distribution.
9
Insulation Resistance (IR) ............................... 100 V ................................................................> 10 Ω
Arc Voltage...................................................... 1 A.....................................................................~ 10 V
Glow-Arc Transition Current.......................................................................................................< 0.5 A
Capacitance..................................................... 1 MHz ...............................................................< 1 pF
(2)
DC Holdover Voltage ................................... 135 V ................................................................< 150 ms
(3)
Max. Single Discharge ................................. 5 kA...................................................................> 1 operation
(3)
Impulse Discharge Current.............................. 2.5 kA, 8ꢂ20 µs ..............................................> 10 operations
100 A, 10ꢂ1000 µs.............................................> 100 operations
10 A, 10ꢂ1000 µs ..............................................> 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)................................................................................................ 40ꢂ90ꢂ21
Notes:
8
• Sparkover limits after life +30ꢂ-25 ꢀ, IR >10 Ω.
• At delivery AQL 0.65 Level II, DIN ISO 2859.
(2)
Network applied.
(3)
DC Sparkover may exceed +30ꢂ-25 ꢀ but will continue to protect without venting.
Asia-Pacific: Tel: +886-2 2562-4117 • Fax: +886-2 2562-4116
EMEA: Tel: +36 88 520 390 • Fax: +36 88 520 211
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.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
Users should verify actual device performance in their specific applications.
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