*R
oH
VE S CO
AV R M
AI SIO PL
LA N IA
B L 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” 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.
BOURNS [ BOURNS ELECTRONIC SOLUTIONS ]
