*R
oH
VE S CO
AV R M
AI SIO PL
LA N IA
BL S NT
E
Features
■
Fast acting
■
Balanced
■
Stable breakdown throughout life
■
Designed to operate with TBU devices
®
Applications
■
Telecommunications
■
Industrial electronics
■
Avionics
■
RoHS compliant* versions available
2020 T Series - 3-Pole Fast Gas Discharge Tube
Characteristics
Model No.
2020-15T
2020-23T
2020-42T
Characteristic
Minimum DC Sparkover
(100 V/s)
Throughout Service Life
60 V
500 V
180 V
650 V
360 V
850 V
Maximum Impulse Sparkover (5k V 1.2/50 µs)
Throughout Service Life
Impulse Transverse Delay...................1000 V/µs ............................................................................... < 75 ns
Insulation Resistance (IR) ...................50 V / 100 V ............................................................................ > 10
9
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)
2020-15T .......................................52 V ........................................................................................ < 150 ms
2020-23T .......................................80 V ........................................................................................ < 150 ms
2020-42T .......................................135 V ...................................................................................... < 150 ms
Service Life
1
.......................................8/20 µs, 5 kA .......................................................................... 1 operation
10/1000 µs, 1 kV, 100 A.......................................................... 100 operations
2
2/10 µs, 5 kV, 1000 A.............................................................. 10 operations
2
10/700 µs, 6 kV, 150 A............................................................ 50 operations
2
8/20 µs, 500 A, 1.2/50 µs, 500 V ............................................ 150 operations
2
600 V, 5 Arms, 0.2 sec. ........................................................... 10 operations
600 Vrms, 0.5 A - 60 A ........................................................... Fail-Short activates
3
230 Vrms, 0.5 A-25 A ............................................................. Fail-Short activates
3
Operating and Storage Temperature .................................................................................................. -40 to +90 °C
Climatic Category (IEC 60068-1) ....................................................................................................... 40 / 90 / 21
Notes:
1 Applied per conductor to center pin.
2 Surge polarity should be reversed between consecutive surges (+,-,+,-)
3 Applies only to GDT with optional Fail-Short. GDT operates and will survive with Fail-Short activation.
• At delivery AQL 0.65 Level II, DIN ISO 2859.
Applications
Port Protection
CanBus
RS232
RS422
RS485
RS485
SDI
VDSL
GDT Device P/N
2020-23T
2020-23T
2020-23T
2020-23T
2020-42T
2020-23T
2020-15T
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
“TBU” is a registered trademark of Bourns, Inc. in the U.S., Taiwan and European Community.
*RoHS Directive 2002/95/EC Jan 27, 2003 including Annex.
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
2020 T Series - 3-Pole Fast Gas Discharge Tube
Product Dimensions (additional lead form configurations available upon request)
2020-xxT-A
1.6
7.8
2020-xxT-C4
FAIL-SHORT
CONFIGURATION
2020-xxT-C2F SHOWN
8.1
9.0
7.5
0.6
9.6
11.7
1.0 DIA.
6.1
2020-xxT-A1
7.9
11.2 REF.
6.1
2020-xxT-C8
DIMENSIONS: MILLIMETERS
UNITS WITH LEADS ARE BASED ON THE
2020-xxT-A1 BODY.
7.5
1.0 DIA.
0.7 - 1.0
How to Order
1.0 DIA.
2020 - xxT - x x F LF
Model Number
Designator
2020-xxT-C2
13.0
MAX.
2020-xxT-C
1.0 mm dia. lead wire
15.4
30
LONG
2 PLCS.
Voltage
15 = 60 V
23 = 180 V
42 = 360 V
Leads
A = None/Cassette Applications
Cn = 1 mm Dia. Leads/Through-hole
Lead Shape
(See Product Dimension Drawings)
Fail-Short Option
Blank = Standard Product
F = With Fail-Short Mechanism
1.0 DIA.
4.4
4.4
1.0 DIA.
7.5
4.5
2020-xxT-C3
RoHS Compliant Option
Blank = Standard Product
LF = RoHS Compliant Product
Model 2020-xxT ships in standard bulk pack,
100 pcs./tray.
7.5
1.0 DIA.
4.75
4.75
4.4
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
2020 T Series - 3-Pole Fast Gas Discharge Tube
Switch-Grade Fail-Short Device Shorting Curve 2020-xxT-XF
30.0
20.0
Current (A) (ELTGS)
10.0
5.0
1.0
0.5
0.1
1
10
100
1000
Seconds
ELTGS = Each Line to Ground Simultaneously
NOTE: When using a GDT fail-short device, it is imperative that all components associated and
connected to the GDT with failsafe be tested in their respective completely integrated environment
(finished product) to assure desired operation.
REV. C 04/11
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
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