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2039-80-SM Datasheet, PDF (1/2 Pages) Bourns Electronic Solutions – Precision, Fast Responding, High Voltage Gas Discharge Tube | |||
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*RoHS VCEOARMVSAPIOILLINAASBNLTE
Features
â Leadless, surface mount for economical
assembly
â Low capacitance and insertion loss
â High surge current rating
â Fast response to transients
â Compact âminiâ size
â RoHS compliant* version available
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
âpick and placeâ 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 âcrowbarâ to create a short-to-ground circuit
during conduction. When an electrical surge exceeds the deï¬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
Characteristic
DC Sparkover ± 20 % @ 100 V/s
Impulse Sparkover @ 1000V/μs
2039-80-SM
800 V
1250 V
Model No.
2039-110-SM
1100 V
1500 V
Insulation Resistance (IR) ................................ 100 V.................................................................> 109 Ω
Arc Voltage ...................................................... 1 A.....................................................................~ 10 V
Glow-Arc Transition Current .......................................................................................................< 0.5 A
Capacitance .................................................... 1 MHz ...............................................................< 1 pF
DC Holdover Voltage 1 .................................... 135 V.................................................................< 150 ms
Max. Single Discharge 2 .................................. 5 kA...................................................................> 1 operation
Impulse Discharge Current.............................. 2.5 kA, 8/20 µs 2 ...............................................> 10 operations
100 A, 10/1000 µs.............................................> 100 operations
10 A, 10/1000 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)................................................................................................ 40/90/21
Notes:
⢠Surface Mount (SM) parts may show a temporary increase in DCBD after the solder reï¬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.
⢠Sparkover limits after life +30/-25 %, IR >108 Ω.
⢠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 2002/95/EC Jan 27, 2003 including Annex.
Speciï¬cations are subject to change without notice.
Customers should verify actual device performance in their speciï¬c applications.
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