GAS DISCHARGE TUBES 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(R) TBU(R) High-Speed Protectors. The newly released part numbers and specifications are: Part Number 2020-15T 2020-23T 2020-42T DCBD (V) 60 180 360 Size (mm) 5 kV/s Impulse Voltage (V) 500 650 850 8 x 11.2 Used with TBU(R) Series TBU-CA050 TBU-CA065 TBU-CA085 The 2020 T Series and Bourns(R) TBU(R) 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(R) 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 specified TBU(R) protector models shown in the above table. Together, the GDT and TBU(R) protectors provide extremely fast overcurrent protection (OCP) and overvoltage protection (OVP) against electrical transients. When exposed to a transient event, the TBU(R) 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(R) device from overvoltage and shunting the excess surge energy to ground. Once the transient subsides, the GDT and TBU(R) 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 specifications 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. Features Fast acting Balanced Stable breakdown throughout life Designed to operate with TBU(R) devices RoHS compliant* versions available Applications Telecommunications Industrial electronics Avionics *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. GDT1104