GAS DISCHARGE TUBES
GDT1104
Features
■ Fast acting
■ Balanced
■ Stable breakdown throughout life
■ Designed to operate with TBU® devices
■ RoHS compliant* versions available
Applications
■ Telecommunications
■ Industrial electronics
■ Avionics
Bourns Releases New Gas Discharge Tube
Model 2020 T Series
Riverside, California - March 4, 2011 - Bourns is pleased to announce the release of the 2020 T Series fast response
Gas Discharge Tubes (GDTs) designed for use with Bourns® TBU® High-Speed Protectors.
The newly released part numbers and specifi cations are:
Part
Number
DCBD
(V)
Size
(mm)
5 kV/µs
Impulse Voltage (V)
Used with
TBU® Series
2020-15T 60
8 x 11.2
500 TBU-CA050
2020-23T 180 650 TBU-CA065
2020-42T 360 850 TBU-CA085
The 2020 T Series and Bourns® TBU® High-Speed Protectors are an ideal protection solution for a broad number of
industrial applications as well as telecom applications requiring GR-1089 or ITU-T K.21 compliance. The Bourns®
2020 T Series is also available with an optional fail-short mechanism for applications requiring UL safety standard
compliance.
These GDT devices provide coordinated overvoltage protection for the specifi ed TBU® protector models shown in
the above table. Together, the GDT and TBU® protectors provide extremely fast overcurrent protection (OCP) and
overvoltage protection (OVP) against electrical transients. When exposed to a transient event, the TBU® protector
will transition into a current-blocking condition in less than one microsecond at the rated current. When needed,
the GDT will transition into conduction at a voltage below its maximum impulse rating, protecting the TBU®
device from overvoltage and shunting the excess surge energy to ground. Once the transient subsides, the GDT and
TBU® device will reset to their normal off-state modes of operation.
The new models are available as RoHS* compliant. The product data sheet with detailed specifi cations can be
viewed on the Bourns website at www.bourns.com. Please contact your local Bourns Representative or Bourns
Customer Service for samples or for further information.
*RoHS Directive 2002/95/EC Jan 27, 2003 including Annex.
“Bourns” is a registered trademark of Bourns, Inc.
“TBU” is a registered trademark of Bourns, Inc. in the U.S., Taiwan and European Community.