Features
■ Compact size
■ Low capacitance
■ Performance stability over life
■ High insulation resistance
■ RoHS compliant*
■ UL Recognized
Applications
■ MDC / PCI modems
■ Splitters
■ Telecom CPE
■ Datacom
Characteristics
2051 Series Gas Discharge Tube Surge Protector
*RoHS Directive 2002/95/EC Jan 27, 2003 including Annex.
Specifi cations are subject to change without notice.
Customers should verify actual device performance in their specifi c applications.
Test Methods per ITU-T (CCITT) K.12 and IEEE C62.31
Insulation Resistance (IR) ............................... 50 / 100 Vdc ......................................................> 1G Ω
Glow Voltage ................................................... 10 mA ................................................................~ 70 V
Arc Voltage ...................................................... 1 A .....................................................................~ 10 V
Glow-Arc Transition Current .......................................................................................................< 1 A
Capacitance..................................................... 1 MHz ...............................................................< 1 pF
Impulse Discharge Current .............................. 2000 A, 8/20 µs .................................................10 operations
100 A, 8/20 µs ...................................................300 operations
10 A, 10/1000 µs ...............................................100 operations
Alternating Discharge Current ......................... 2 A, 50 Hz, 1 sec ...............................................10 operations
Operating & 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.
Characteristic Model No.
2051-09 2051-15 2051-20 2051-23 2051-30
DC Sparkover @ 100 V/s 90 V ±30 % 150 V ±30 % 200 V ±25 % 230 V ±25 % 300 V ±25 %
Impulse Sparkover
100V/μs
1000V/μs
<500 V
<600 V
<500 V
<600 V
<500 V
<650 V
<500 V
<650 V
<600 V
<750 V
Bourns® 2051 Series micro surface mount, 2-electrode GDT surge protection device is designed to meet board level protection requirements
with reduced space requirements. The 2051 Series is ideal for high-speed/high-bandwidth applications with a typical capacitance of 0.6 pF.
The 2051 Series product dimensions are 2.7 x 3.2 x 4.5 mm.
*RoHS COMPLIANT
Characteristic Model No.
2051-35 2051-40 2051-42 2051-47 2051-60
DC Sparkover @ 100 V/s 350 V ±25 % 400 V ±25 % 420 V ±25 % 470 V ±25 % 600 V ±25 %
Impulse Sparkover
100V/μs
1000V/μs
<650 V
<800 V
<750 V
<900 V
<750 V
<900 V
<800 V
<950 V
<950 V
<1100 V
Asia-Pacifi c: 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
Specifi cations are subject to change without notice.
Customers should verify actual device performance in their specifi c applications.
2051 Series Gas Discharge Tube Surge Protector
Product Dimensions
How to Order
2051 - xx - SM - RP LF
Model Number Designator
Voltage (Divided by 10)
09 = 90 V 35 = 350 V
15 = 150 V 40 = 400 V
20 = 200 V 42 = 420 V
23 = 230 V 47 = 470 V
30 = 300 V 60 = 600 V
Surface Mount
Packaging
RP = Reelpack (2,500 pieces per reel)
RoHS Compliancy
LF = RoHS Compliant Product
Recommended Pad Layout
Packaging Specifi cations
The Model 2051-xx-SM ships standard reelpack (-RP),
2500 pieces per reel. Reel is 330 mm in diameter and 14 mm
wide.
REV. B 10/11
4.5 ± 0.3
(0.177 ± 0.012)
3.2 ± 0.3
(0.126 ± 0.012)
0.5 ± 0.1
(0.020 ± 0.004)
2.7 ± 0.3
(0.106 ± 0.012)
3.0
(0.118)
4.2
(0.165)
1.5
(0.059)
DIMENSIONS: MM
(INCHES)
1.55 ± 0.05
(0.061 ± 0.002)
4.0 ± 0.1
(0.157 ± 0.004)
0.4 ± 0.1
(0.016 ± 0.004)
12.0 ± 0.3
(0.472 ± 0.012)
1.75 ± 0.1
(0.069 ± 0.004)
DIA.
5.45 ± 0.1
(0.215 ± 0.004)
3.1 ± 0.1
(0.122 ± 0.004)
8.0 ± 0.1
(0.315 ± 0.004)
330
(12.992)
DIA. 1.5
(0.059)
MIN.
TYP.
TYP.
100.0
(3.937)
14.0
(0.551)
