Product News: Electrical Equipment & Systems

T1/E1 Transformers are designed for telecom applications.

Press Release Summary:

T1/E1 Transformers are designed for telecom applications.

Mar 24, 2014 - RoHS-compliant models SM75056PEL and SM75057PEL feature 5.65 mm profile and operate over -40 to +85°C range. While providing extra layer protection in harsh operating environments and assembly process, potted construction also enables tight board layouts by allowing parts to be placed closely together.

Original Press Release

Bourns Adds New T1/E1 Transformer Models to Extensive Inductive Components Product Line

Press release date: Mar 18, 2014

Designed to Meet Strict Telecom Application Requirements, the New Models Feature Shorter Production Lead Times of Just 10 Weeks

RIVERSIDE, Calif. - Bourns, Inc., a leading manufacturer and supplier of electronic components, today announced the addition of two new T1/E1 transformers to the company’s extensive inductive components product line. Designated Bourns® Models SM75056PEL and SM75057PEL, the new devices are potted construction versions of existing models SM75056EL and SM75057EL, which are produced using an injection molding method. The two new Bourns® models are low profile (5.65 mm) and feature a wide operating temperature range of -40 to +85 °C. Both devices are also RoHS* compliant. Bourns designed the new T1/E1 models for telecom applications, and is offering significantly shorter production lead times of just 10 weeks compared to 14-16 weeks for existing models.

“With potted construction, Bourns’ new T1/E1 transformer models provide an extra layer of protection in harsh operating environments, and in the assembly process. Potting also enables tighter board layouts by allowing parts to be placed much closer together,” said Guido Zehnder, Product Line Manager at Bourns, Inc. “In addition, the shorter production lead times we are offering should help our customers achieve faster time-to-market for their telecom applications.”

Pricing and Availability
As a pricing reference, both Bourns® Models SM75056PEL and SM75057PEL are priced at $1.40 each in 600 pieces/reel. Both models are available now. For additional product specs, visit and

About Bourns
Bourns, Inc. is a leading manufacturer and supplier of automotive sensors, circuit protection solutions, magnetic products, microelectronic modules, trimming and 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 and ISO-14001 standards under Six Sigma quality programs. Additional company and product information is available at the company’s website at

*RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.

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

Kelli Crimins
Keller Communication
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949.246.4410 Cell