Bourns, Inc., a leading manufacturer and supplier of electronic components, today announced the availability of a breakthrough line of Transient Blocking Unit (TBU™) circuit protection products. As the first new approach to electronics circuit protection in over twenty years, Bourns’ new TBU™ technology is designed to block a transient through a current disconnecting mechanism rather than diverting or shunting the surge to ground. This blocking technology virtually eliminates latency in the circuit protection design which results in surge protection for sensitive electronic equipment within nanoseconds. Bourns’ new TBU™ devices provide extremely effective, wide bandwidth circuit protection against lightning, power induction, power cross and short circuit events in a wide variety of telecom applications: voice circuits, Voice over IP (VoIP), Very High Speed DSL (VDSL), Ethernet and T1/E1 applications. The TBU™ product is also used by customers in industrial, test and instrumentation, sensors, LVDS, and transportation applications. 

Bourns’ new TBU™ line includes four product families: The P-G series designed for voice protection, P40-G for VDSL protection, the P-U series for Ethernet protection and the C series for general electronics protection. The P-G series meets very high surge requirements and prevents arcing and other damage to components in typical use. Offering very high bandwidth for VDSL and VDSL2 applications, the P40-G TBU™ products meet rate-reach requirements. The P-U series is designed specifi cally for Ethernet applications by protecting against both lightning and power cross events. All Bourns® TBU™ products are resettable for full functionality after multiple fault events and offer a high bandwidth of 3 gigahertz (GHz). While Bourns’ new TBU™ line exceeds system circuit protection requirements, the products are also a cost-effective solution to reduce warranty returns. Specifically designed for overvoltage and overcurrent protection in telecommunication, industrial and data communications systems, TBU™ technology was fi rst announced by Fultec Semiconductor from which Bourns acquired its TBU™ business in October 2008. Please feel free to contact us regarding the new TBU™ product. Samples are available upon request. 

Asia-Pacifi c: Tel: +886-2 2562-4117 •
Fax: +886-2 2562-4116
Europe: Tel: +41-41 768 5555 •
Fax: +41-41 768 5510 The Americas: Tel: +1-951 781-5500 •
Fax: +1-951 781-5700
Regards,

Paul Wiener
Director of Product Marketing – TBU™ Products
Circuit Protection Division