Littelfuse TPSMD-FL TVS diodes

Littelfuse is announcing the TPSMD-FL series of FlatSuppressX TVS diodes. The automotive-grade series – AEC-Q101 qualified – is designed to simplify ISO 7637-2 Pulse 5b load-dump protection for 12 V vehicle electronics.

Such high-energy transients can occur when a battery becomes disconnected while the alternator is charging, for example.

Typical applications, according to Littelfuse, include zonal controllers, powertrain electronics, infotainment systems, and other vehicle control modules connected to 12 V power rails.

Rated for 3000 W peak pulse power dissipation, they are housed in a surface-mount DO-214AB package. And the TPSMD-FL Series is optimised to protect sensitive automotive electronics from high-energy surges.

“Automotive designers continue to face the challenge of protecting increasingly sensitive electronics from high-energy load-dump transients without adding cost and complexity to their systems,” said Charlie Cai, Director of Product Management, Protection Business, Littelfuse.

“The innovative FlatSuppressX TPSMD-FL Series addresses this challenge by delivering exceptionally low clamping voltage performance that can help systems meet ISO 7637-2 Pulse 5b requirements without requiring additional protection devices, reducing both component count and overall BOM cost.”

TPSMD-FL TPSMD-FL features

• 3000 W peak pulse power capability

• Clamping capability with low clamping voltage

• Low profile package

• Typical failure mode is short from over-specified voltage or current

• Whisker test is according to JEDEC JESD201A per its table 4a and 4c

• IEC 61000-4-2 ESD 30 kV(Air), 30 kV(Contact)

• ESD protection of data lines in accordance with IEC 61000-4-2

You can read more on the Littelfuse website.

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