Nexperia introduces flip-chip package tech for automotive ESD protection

This new package technology is optimised for protecting and filtering high-speed data communication links which are increasingly used in modern cars. Applications like in-vehicle camera video-links, multi-gigabit automotive Ethernet networks as well as infotainment interfaces like USBx, HDMIx, and PCIex, can be protected against potentially damaging ESD events.

Flip-chip packages have minimal parasitic components – they come without bond wires or copper lead frames resulting in high performance and excellent signal integrity. Nexperia’s new two- and three-pin FC-LGA diodes have ultra-low capacitance (<0.25pF) and insertion loss (-3dB at 14.6GHz) – features that are key for use in high data rate applications. Both flip-chip packages, the two-pin DFN1006L(D)-2 and the three-pin DFN1006L(D)-3, share the same footprint as their standard counterparts, ensuring drop-in compatibility. They offer up to 6GHz bandwidth improvement compared to conventional DFN technologies. Moreover, the three-pin devices’ ability to protect two channels and offer capacitance matching saves more space while further improving circuit performance and stability.

Apart from offering best-in-class signal integrity, this family of diodes also comes with the industry’s widest range of reverse working voltages (Vrwm), including 5V, 18V, 24V, and 30V options. Higher voltage devices provide the additional advantage of flexible board placement for protecting multiple devices connected at various points along a link. With products like the PESD5V0H1BLG-Q in DFN1006LD-2 and PESD5V0H2BFG-Q in DFN1006LD-3 packaging Nexperia offers ESD protection diodes in flip-chip packaging with side-wettable flanks (SWF). This enables the use of automated optical inspection (AOI) of solder joints to ensure that they meet the exacting quality requirements of the automotive industry, where safety is paramount.

"These new diodes combine side-wettable flanks with a DFN1006 footprint optimised for maximum signal integrity and represent a significant improvement to the options currently available. Designed to support the growing trend of data-intensive automotive applications, they reflect Nexperia's proven expertise in packaging technology. This launch reinforces our commitment to delivering innovative solutions that meet the evolving demands of engineers across a wide range of industries," says Alexander Benedix, Head of Product Group Protection and Filtering at Nexperia.

The first three 5V Flip-Chip diodes are in mass production. Six products with 18V, 24V, and 30V are sampling and will be available in mass production in Q2 2025.