Features
Applications
n Balanced
n Industrial electronics
n Stable breakdown throughout life
n Avionics
n Fast acting
n Telecommunications
n Designed to operate with TBU® devices
n RoHS compliant* versions available
2020 T-Series - Fast Acting 3-Electrode Miniature GDT
Characteristics
Test Methods per ITU-T K.12, IEEE C62.31 and IEC 61643-311 GDT standards.
Characteristic
2020-15T
Initial DC Sparkover (100 V/s)
Typical
Minimum DC Sparkover (100 V/s)
Throughout Service Life
Maximum Impulse Sparkover
Throughout Service Life
(1)
(1)
(5 kV/µs)
Model No.
2020-23T
2020-42T
150 V
230 V
420 V
60 V
180 V
360 V
500 V
650 V
850 V
Impulse Sparkover voltage is defined as typical values of distribution.
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
Moisture Sensitivity Level.................................................................................................................... 1
ESD Classification (HBM).................................................................................................................... 6
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.
WARNING Cancer and Reproductive Harm - www.P65Warnings.ca.gov
“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.
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.
2020 T-Series - Fast Acting 3-Electrode Miniature GDT
Product Dimensions (additional lead form configurations available upon request)
2020-xxT-A1
DIA.
2.5 ± 0.25
(.098 ± .010)
2020-xxT-C4
7.9 ± 0.3
DIA.
(.311 ± .012)
1.53 ± 0.1
(.060 ± .004)
7.5 ± 0.4
(.295 ± .016)
DIA.
9.0 ± 0.2
(.354 ± .008)
7.8 ± 0.3
DIA.
(.307 ± .012)
0.8 ± 0.3
(.032 ± .012)
11.83 ± 0.6
(.466 ± .024)
1.0 ± 0.04
(.039 ± .002)
5.85 ± 0.6
(.230 ± .024)
2020-xxT-C2
7.9 ± 0.3
(.311 ± .012)
DIA.
13.0 ± 0.8
(.511 ± .031)
7.5 ± 0.4
(.295 ± .016)
1.0 ± 0.04
(.039 ± .002)
1.0 ± 0.04
(.039 ± .002)
4.4 ± 0.3
(.173 ± .012)
13.5 ± 0.4
(.531 ± .016)
1.0 ± 0.04
(.039 ± .002)
DIA.
15.4 ± 0.8
(.606 ± .032)
5.85 ± 0.6
(.230 ± .024)
2020-xxT-C
1.0 ± 0.08 mm (.039 ± .003 in.) dia. lead wire
DIA.
7.9 ± 0.2
(.311 ± .008)
11.3 ± 0.4
(.449 ± .016)
30.5 ± 0.4
(1.201 ± .016)
LONG
2 PLCS.
4.5 ± 0.3
(.177 ± .012)
4.4 ± 0.3
(.173 ± .012)
1.0 ± 0.04
(.039 ± .002)
7.5 ± 0.3
(.295 ± .012)
30
LONG
2 PLCS.
2020-xxT-C3
FAIL-SHORT CONFIGURATION
2020-xxT-C2F SHOWN
7.9 ± 0.3
DIA.
(.311 ± .012)
8.1 ± 0.3
(.319 ± .012)
7.5 ± 0.4
(.295 ± .016)
1.0 ± 0.04
(.039 ± .002)
1.0 ± 0.04
(.039 ± .002)
4.7 ± 0.3
(.185 ± .012)
1.0 DIA.
13.5 ± 0.4
(.531 ± .016)
4.5 ± 0.3
(.177 ± .012)
7.5
9.6 ± 0.4
(.378 ± .016)
4.7 ± 0.3
(.185 ± .012)
DIMENSIONS:
MM
(INCHES)
UNITS WITH LEADS ARE BASED ON THE
2020-xxT-A1 BODY.
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.
2020 T-Series - Fast Acting 3-Electrode Miniature GDT
Packaging Specifications
How to Order
2020 - xxT - x x F LF
Model Number
Designator
Standard Packaging Quantity
Model
Bulk (Bag)
2020-xxT-A1
Voltage (Divided by 10)
15 = 150 V
23 = 230 V
42 = 420 V
Leads
A = None/Cassette Applications
C = 1 mm Dia. Leads/Through-hole
Lead Shape
(See Product Dimension Drawings)
Fail-Short Option
Blank = Standard Product
F = With Fail-Short Mechanism
Tray
250
Box
1000
2020-xxT-C
100
1000
2020-xxT-C2
100
1000
2020-xxT-C3
100
1000
2020-xxT-C4
100
1000
Typical Part Marking
RoHS Compliant Option
Blank = Standard Product
LF = RoHS Compliant Product
MANUFACTURER'S
TRADEMARK
Model 2020-xxT ships in standard bulk pack, 100 pcs./tray.
B XX XX
Switch-Grade Fail-Short Device Shorting Curve
20-XXXV
DATE CODE
• FIRST TWO DIGITS = MONTH
• NEXT TWO DIGITS = YEAR
VOLTAGE
(REVERSE MARKED
WITH RED INK)
30.0
Current (A) (ELTGS)
20.0
Applications
10.0
Port
GDT Device
Protection
P/N
ELTGS = Each Line to Ground Simultaneously
CanBus
2020-23T
NOTE: When using a GDT fail-short device, it is
imperative that all components associated and
RS232
2020-23T
connected to the GDT with failsafe be tested in their
respective completely integrated environment
RS422
2020-23T
(finished product) to assure desired operation.
RS485
2020-23T
RS485
2020-42T
SDI
2020-23T
VDSL
2020-15T
5.0
1.0
0.5
TBU® Device P/N
TBU-CA065-100-WH
TBU-CA065-200-WH
TBU-CA065-200-WH
TBU-CA065-200-WH
TBU-CA065-200-WH
TBU-CA065-100-WH
TBU-CA065-500-WH
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 ensure desired operation.
REV. K 02/19
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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and complete before placing orders for Bourns® products.
The characteristics and parameters of a Bourns® product set forth in its data sheet are based on laboratory conditions, and
statements regarding the suitability of products for certain types of applications are based on Bourns’ knowledge of typical
requirements in generic applications. The characteristics and parameters of a Bourns®/1.#4"3(- 42$1 //+(" 3(.-, 85 18
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