Features
n Fast acting
n Balanced
n Stable breakdown throughout life
n Designed to operate with TBU
®
devices
n RoHS compliant* versions available
Applications
n Telecommunications
n Industrial electronics
n Avionics
Characteristics
2020 T-Series - Fast Acting 3-Electrode Miniature GDT
“TBU” is a registered trademark of Bourns, Inc. in the United States and other countries.
*RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.
Specifications are subject to change without notice.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
Users should verify actual device performance in their specific applications.
Characteristic
Model No.
2020-15T 2020-23T 2020-42T
Minimum DC Sparkover (100 V/s)
Throughout Service Life
60 V 180 V 360 V
Maximum Impulse Sparkover
(1)
(5 kV/µs)
Throughout Service Life
500 V 650 V 850 V
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 ..................................................................................... < 2 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
(2)
......................................8/20 µs, 10 kA......................................................................... 1 operation
10/1000 µs, 1 kV, 200 A .......................................................... 100 operations
(3)
2/10 µs, 6 kV, 2000 A .............................................................. 10 operations
(3)
10/700 µs, 6 kV, 300 A ............................................................ 50 operations
(3)
8/20 µs, 500 A, 1.2/50 µs, 500 V ............................................ 150 operations
(3)
600 V, 10 Arms, 0.2 sec.......................................................... 10 operations
600 Vrms, 0.5 A - 60 A ............................................................ Fail-Short activates
(4)
230 Vrms, 0.5 A-25 A .............................................................. Fail-Short activates
(4)
Operating Temperature Range ........................................................................................................... -40 °C to +90 °C
Storage Temperature Range .............................................................................................................. -55 °C to +90 °C
Notes:
(2)
The rated discharge current is the total current equally divided between each line to ground.
(3)
Surge polarity should be reversed between consecutive surges (+,-,+,-)
(4)
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.
• Models with the optional Fail-Short assembly activate at low temperature (215 °C – 217 °C) when required. These models are designed to
be soldered either manually or using a selective soldering process that does not exceed 210 °C, below the temperature that the Fail-Short
assembly would activate.
*RoHS COMPLIANT
LEAD FREE
*RoHS COMPLIANT
VERSIONS
AVAILABLE
LEAD FREE
VERSIONS ARE
RoHS COMPLIANT*
Port Protection GDT Device P/N TBU
®
Device P/N
CanBus 2020-23T TBU-CA065-100-WH
RS232 2020-23T TBU-CA065-200-WH
RS422 2020-23T TBU-CA065-200-WH
RS485 2020-23T TBU-CA065-200-WH
RS485 2020-42T TBU-CA085-200-WH
SDI 2020-23T TBU-CA065-100-WH
VDSL 2020-15T TBU-CA050-500-WH
Applications
Test Methods per ITU-T K.12, IEEE C62.31 and IEC 61643-311 GDT standards.
(1)
Impulse Sparkover voltage is dened as typical values of distribution.
