Product News: Electrical Equipment & Systems

TVS Diodes feature surface mount design.

Press Release Summary:

TVS Diodes feature surface mount design.

Dec 02, 2015 - Housed in surface mount SMTO-218 package for automatic pick and place assembly and reflow processes, LTKAK6 and LTKAK10 Series feature Littelfuse Foldbak technology, which provides clamping voltage lower than avalanche voltage but above rated working voltage, minimizing voltage rise due to increased current conduction. Typical applications include transient overvoltage protection for cell phone base stations, railway trackside signaling/control cabinets, power grid and distribution systems.

Original Press Release

Littelfuse Introduces Circuit Protection Industry's First True High Power Surface Mount TVS Diodes for Lower Production Costs

Press release date: Nov 24, 2015

Surface mount SMTO-218 package is ideal for automatic pick and place assembly and reflow processes

CHICAGO, — Littelfuse, Inc., the global leader in circuit protection, has introduced two new product series, the LTKAK6 and LTKAK10 Series TVS Diodes, designed to offer clamping characteristics superior to those of standard silicon avalanche diode (SAD) technologies. This superior performance is made possible by Littelfuse Foldbak technology, which provides a clamping voltage lower than the avalanche voltage but above the rated working voltage. As a result, any voltage rise due to increased current conduction is minimized. Both products can be connected in series and/or parallel to create a variety of flexible protection solutions. They provide the same enhanced quality, easy manufacturing and compact mechanical design found in the company’s AK Series TVS Diode families. Additionally, because they are provided in a surface mount SMTO-218 package, they allow circuit designers to save even more circuit board space. This surface mount package is ideal for automatic pick and place assembly and reflow processes, allowing for a lower manufacturing cost and greater soldering quality than axial leads packages.

Typical applications for the LTKAK6 and LTKAK10 Series TVS Diodes include transient overvoltage protection for cell phone base stations, industrial transient voltage surge suppressors (TVSSs), railway (railroad) trackside signaling and control cabinets, defense and avionics, and power grid and distribution systems.

“The LTKAK6 and LTKAK10 Series are the circuit protection industry’s first true surface mount high power TVS Diodes,” said Jeff Chin, product line director for the TVS Diodes line. “They offer better voltage clamping performance and higher speed than other solutions used in these applications, such as metal oxide varistors (MOVs).”

LTKAK6 and LTKAK10 Series TVS Diodes offer these key benefits:
LTKAK6 and LTKAK10 series in an innovative package (patent pending) design offers the highest power rating (8x20µs waveform) among  surface mount TVS available in current market.

LTKAK6 and LTKAK10 series in a surface mount package is ideal for automatic pick and place assembly and reflow processes, allowing for a lower manufacturing cost and greater soldering quality than axial leads packages.

Because LTKAK6 and LTKAK10 TVS Diodes can withstand multiple surge events, they will help equipment manufacturers extend their product warranties because, unlike passive MOVs, these semiconductor TVS Diodes do not wear out, which makes them ideal for protecting valuable loads.

These TVS Diodes are certified, environmentally friendly and suitable for worldwide usage that can help designers meet global regulatory standards.

Availability
The LTKAK6 and LTKAK10 Series TVS Diodes are available in SMTO-218 surface mount packages and are sold in quantities of 400 in tape-and-reel packaging or quantities of 100 in tube pack (25 per tube). Sample requests can be placed through authorized Littelfuse distributors worldwide. For a listing of Littelfuse distributors, please visit http://www.littelfuse.com/contactus.aspx

For More Information
Additional information is available on the LTKAK6 Series product page and the LTKAK10 Series product page. If you have technical questions, please contact: Jeff Chin, product line director, TVS Diodes, jchin@littelfuse.com.

About Littelfuse
Founded in 1927, Littelfuse is the world leader in circuit protection with growing global platforms in power control and sensing. The company serves global customers in the electronics, automotive and industrial markets with technologies including fuses, semiconductors, polymers, ceramics, relays and sensors. Littelfuse has over 8,000 employees in more than 35 locations throughout the Americas, Europe and Asia. For more information, please visit the Littelfuse website: Littelfuse.com.