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TVS Diodes protect sensitive automotive electronics.

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TVS Diodes protect sensitive automotive electronics.
TVS Diodes protect sensitive automotive electronics.
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February 24, 2014 - Housed in low-profile DO-214AA SMB package, TPSMB Series provides secondary protection of sensitive automotive and other electronics from transients induced by load dump and other transient voltage events. Units are available in standoff voltage ratings from 10–77 V for both uni-directional and bi-directional devices. Featuring 600 W peak pulse power dissipation rating, diodes are AEC-Q101 qualified and comply with IEC 61000-4-2 and IEC 610000-4-4 standards.

AEC-Q101 Qualified TVS Diode from Littelfuse Boosts Power Dissipation Capability without Redesigning Circuits

Littelfuse, Inc.
800 E. Northwest Hwy.
Des Plaines, IL, 60016

Press release date: February 13, 2014

Protects sensitive automotive electronics from voltage transients, ESD

CHICAGO -- Littelfuse, Inc., the global leader in circuit protection, has introduced the TPSMB Series Transient Voltage Suppression (TVS) Diode, designed for secondary protection of sensitive automotive and other electronics from transients induced by load dump and other transient voltage events. Because it complies with the Automotive Electronics Council's Q101 Stress Test Qualification for Automotive Grade Discrete Semiconductors (AEC-Q101 qualified), it's ideal for protecting I/O interfaces, VCC bus and other vulnerable circuits used in automotive applications. Its compact, low-profile DO-214AA SMB package simplifies board layout and is one of the most popular form factors for automotive applications.

TPSMB Series TVS Diodes are available in standoff voltage ratings ranging from 10V to 77V for both uni-directional and bi-directional devices, which allows it to fulfill all design requirements for a wide range of automotive applications.

Typical applications of the TPSMB Series include DC power protection and ESD protection in automotive electronics like electronic control units, sensors, and entertainment systems, as well as in portable devices that require high reliability.

"The TPSMB Series' compact DO-214AA package and 600W rating combine to make it a great solution for secondary protection in high reliability, automotive, and portable device applications," said Charlie Cai, global product manager for Automotive TVS and High Reliability TVS diodes. "They are also AEC-Q101 qualified, which is important to automakers because it means theyre suitable for use in the harsh automotive environment without additional component level qualification testing."

TPSMB Series Automotive TVS Diodes offer these key features and benefits:

600W Pppm (peak pulse power) dissipation rating (10x1000 s waveform)
AEC-Q101 qualified
SMB package (DO-214AA)
Both uni-directional and bi-directional polarity devices offer 11V to 77V standoff voltage range
Complies with IEC 61000-4-2 and IEC 610000-4-4 standards

Very popular power dissipation rating for automotive applications
Automotive-grade products are well-suited for high reliability applications
Standard package and compact footprint allow quick and easy layout in high reliability applications
Wide standoff voltage range fulfills all design requirements for automotive applications
Helps designers meet global regulatory standards

TPSMB Series Automotive TVS Diodes are available in quantities of 3,000 in tape and reel packaging. Samples are available now for bulk orders; sample requests can be placed through authorized Littelfuse distributors worldwide. For a listing of Littelfuse distributors, please visit

For More Information
Additional information is available on the TPSMB Series product page and datasheet. If you have technical questions, please contact: Charlie Cai, Global Product Manager,

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 customers in the electronics, automotive and industrial markets with technologies including fuses, semiconductors, polymers, ceramics, relays and sensors. Littelfuse has over 7,000 employees in more than 35 locations throughout the Americas, Europe and Asia. For more information, please visit the Littelfuse website:
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