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Features
Applications
■ Fast acting
■ Telecommunications
■ Small size
■ Industrial electronics
■ Stable breakdown throughout life
■ Avionics
■ Designed to operate with TBU devices
®
■ RoHS compliant* versions available
■
UL Recognized
2031-xxT-SM Series - Miniature 2-Pole Gas Discharge Tube
Characteristics
Test Methods per ITU-T K.12, IEEE C62.31 and IEC 61643-311 GDT standards.
Model No.
Characteristic
Initial DC Sparkover (100 V/s)
Typical
Minimum DC Sparkover (100 V/s)
Throughout Service Life
2031-15T
2031-23T
2031-42T
150 V
230 V
420 V
60 V
185 V
360 V
650 V
850 V
Maximum Impulse Sparkover (1) (5k V 1.2/50 μs)
500 V
Throughout Service Life
(1)
Impulse Sparkover voltage is defined as typical values of distribution.
Insulation Resistance (IR) ...................................... 50 / 100 V................................................................................> 109 Ω
Glow Voltage .......................................................... 10 mA......................................................................................~ 70 V
Arc Voltage ............................................................. >1 A.........................................................................................~ 10 V
Glow-Arc Transition Current ....................................................................................................................................< 0.5 A
Capacitance............................................................ 1 MHz......................................................................................< 1 pF
DC Holdover Voltage (Network Applied per ITU-T K.12)
2031-15T ........................................................... 52 V ........................................................................................< 150 ms
2031-23T ........................................................... 80 V ........................................................................................< 150 ms
2031-42T ........................................................... 135 V ......................................................................................< 150 ms
Service Life............................................................. 8/20 μs, 1 kA ...........................................................................2 operations
10/1000 μs, 1 kV, 100 A .........................................................50 operations
2/10 μs, 5 kV, 500 A ................................................................20 operations
10/700 μs, 6 kV, 150 A ............................................................10 operations
8/20 μs 250 A, 1.2/50 μs, 500 V (IEC 61643-21) ....................150 operations
600 V rms, 1 A, 0.2 s...............................................................5 operations
Operating and Storage Temperature,
Climatic Category (IEC 60068-1) 40 / 90 / 21..........................................................................................................-40 °C to +90 °C
Moisture Sensitivity Level ........................................................................................................................................1
ESD Classification (HBM) ........................................................................................................................................N/A
Notes:
• UL Recognized component, UL File E153537.
• Surge polarity should be reversed between consecutive surges (+-+-).
• At delivery AQL 0.65 Level II, DIN ISO 2859.
• Bourns recommends reflowing surface mount devices per IPC/JEDEC J-STD-020 rev D.
Applications
Port Protection
CanBus
RS232
RS422
RS485
RS485
SDI
VDSL
Typical Part Marking
GDT Device P/N
2031-23T-SM-RPLF
2031-23T-SM-RPLF
2031-23T-SM-RPLF
2031-23T-SM-RPLF
2031-42T-SM-RPLF
2031-23T-SM-RPLF
2031-15T-SM-RPLF
TBU® Device P/N
TBU-CA065-100-WH
TBU-CA065-200-WH
TBU-CA065-200-WH
TBU-CA065-200-WH
TBU-CA085-200-WH
TBU-CA065-100-WH
TBU-CA050-500-WH
MANUFACTURER'S
TRADEMARK
VOLTAGE
XXXV XXXX
DATE CODE
• FIRST TWO DIGITS = MONTH
• NEXT TWO DIGITS = YEAR
(REVERSE MARKED
WITH RED INK)
WARNING Cancer and Reproductive Harm - www.P65Warnings.ca.gov
“TBU” is a registered trademark of Bourns, Inc. in the U.S. and other countries, except Japan. All references to TBU® in this document for use in Japan shall be deemed to be replaced
with Bourns® TBU™.
*RoHS Directive 2015/863, Mar 31, 2015 and Annex.
Specifications are subject to change without notice.
Users should verify actual device performance in their specific applications.
The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.
2031-xxT-SM Series - Miniature 2-Pole Gas Discharge Tube
Product Dimensions
Packaging Specifications
Standard Packaging Quantity
4.4 ± 0.2
(.173 ± .008)
Bulk
(Bag)
Model
2031-xxT-SM
5.0 ± 0.3
(.197 ± .012)
0.51 ± 0.1
(.020 ± .004)
0.33 ± 0.1
(.013 ± .004)
Tray
Box
250
Reel
1000
2031-xxT-SM-RP
1500
2031-xxT-SM-RP3
1000
-RP
Reel is 13 inches in diameter and 3/4 inch wide.
4.00
(.158)
Recommended Pad Layout
1.75
(.069)
2.00
(.079)
3.9
(.155)
16.0
(.63)
7.5
(.30)
5.6
(.220)
8.00
(.315)
1.3
(.050)
DIMENSIONS:
MM
(INCHES)
-RP3
Reel is 13 inches in diameter and 11/16 inch wide.
12.00
(.473)
4.00
(.158)
How to Order
2031 - xxT - SM - RP LF
Model Number Designator
12.00 ± 1.27
(.473 ± .050)
Voltage (Divided by 10)
15 = 150 V
23 = 230 V
42 = 420 V
Surface Mount
Packaging Options
Blank = Bulk Packaging - 250 pcs./bag (Standard)
RP = Reelpack - 1,500 pcs./reel (Optional)
RP3 = Reelpack - 1,000 pcs./reel (Optional)
DIMENSIONS:
MM
(INCHES)
Unless otherwise specified, tolerances in decimals
are .X ± 0.3, .XX ± 0.15 for lengths in millimeters and ±1 ° for degrees.
RoHS Compliant Option
Blank = Standard Product
LF = RoHS Compliant Product
REV. J – 09/19
Specifications are subject to change without notice.
Users should verify actual device performance in their specific applications.
The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.
Legal Disclaimer Notice
This legal disclaimer applies to purchasers and users of Bourns® products manufactured by or on behalf of Bourns, Inc. and
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Unless otherwise expressly indicated in writing, Bourns® products and data sheets relating thereto are subject to change
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