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2010 Press Release
Bourns Announces Industry’s First ECL Triggered By Excessive Voltage or Current
Bourns Announces Industry’s First ECL Triggered By Excessive Voltage or Current
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Riverside, Calif., Jun 29, 2010 - Bourns, Inc., a leading manufacturer and supplier of electronic components, today announced its latest series of Transient Blocking Unit (TBU™) circuit protection devices designed to protect telecommunications applications from surges in the industry’s first electronic current limiter triggered by excessive voltage or current. Designated the Bourns® TBU™ PL-Series SLIC, the new circuit protection device family provides extremely fast overcurrent protection combined with SLIC battery voltage tracking triggered protection. Combined with additional overvoltage protectors, this new solution protects against very high surge levels and meets telecom 500A Telcordia GR-1089 intrabuilding and 6kV/150A ITU-T standards.

Protecting sensitive telecom applications from the potentially damaging effects of surges that can cause current and voltage to rise above normal operating levels, the Bourns® TBU™ PL-Series responds in 100 nanoseconds. The resettable circuit protection devices also feature significantly lower let-thru energy and overshoot protection, which reduces stress on the SLIC and the printed circuit board (PCB) for increased reliability and product life. Bourns’ new TBU™ series also cuts the circuit protection component count to three devices compared to the seven needed in a conventional gated thyristor solution because there is no need for peripheral R-C or L-C components nor additional GDTs for increased surge requirements that take up valuable PCB space and increase manufacturing costs.

“Similarly, for customers who are currently using the Bourns® P-G TBU™ series, the new Bourns® TBU™ PL-Series drastically reduces the component count and the TBU™ package size is 25 percent smaller to better meet our customer’s needs for board area and height reductions,” said Paul Wiener, telecom market director at Bourns. “This new TBU™ series provides the best of both worlds – the highest protection levels with the fewest number of components.”

The Bourns® TBU™ PL-Series is available in three voltages (850, 600 and 500) and two operating current levels (100 mA and 200 mA) that match worldwide standards and SLIC chipset requirements. Product samples, evaluation boards and sample kits are available now through Bourns’ distribution partners. As a pricing example, Bourns® TBU-PL050-100-WH is priced at ($.056 each) in (3K) quantities.
About Bourns

Bourns, Inc. is a leading manufacturer and supplier of automotive sensors, circuit protection solutions, magnetic products, microelectronic modules, precision potentiometers, panel controls and encoders and resistive products. Headquartered in Riverside, CA, Bourns serves a broad range of markets, including telecommunications, computer, industrial, instrumentation, automotive, consumer, non-critical life support medical, audio and various other market segments. Bourns products are manufactured according to ISO-9000 standards under Six Sigma quality programs. Additional company and product information is available at the company’s website at www.bourns.com.

Bourns® and the Bourns logo are trademarks or registered trademarks of Bourns, Inc. and may be used publicly only with the permission of Bourns and require proper acknowledgement. Other listed names and brands are trademarks or registered trademarks of their respective owners.

Agency Contact:
Annette Keller
Keller Communication
(949) 640-4811
annettekeller@sbcglobal.net 		  Company Contact:
Mikelyn Bridges
Bourns, Inc.
(951) 781-5397
mike.bridges@bourns.com