Nexperia Ultra Low Junction Capacitor ESD Protection Diode Protection Automotive Data Interface

Reliable protective devices can significantly reduce the impact on signal integrity

Nexperia, a high-capacity production expert in the field of basic semiconductor devices, today announced the expansion of its ultra-low capacitance ESD protection diode product portfolio. This series of devices aims to protect high-speed data lines with interfaces such as USB, HDMI, high-speed video links, and Ethernet for automotive infotainment applications.

The newly added devices include PESD18VF1BLS-Q, PESD24VF1BLS-Q, PESD30VF1BLS-Q, and PESD32VF1BLS-Q, all of which are packaged in DFN1006BD-2 and can be optically inspected in automotive production lines through side tin crawling. In addition, PESD18VF1BBL-Q, PESD24VF1BBL-Q, and PESD30VF1BBL-Q also offer compact DFN1006-2 packaging options. In order to improve electrical performance and signal integrity, while supporting the miniaturization requirements in automotive design, all versions adopt pinless packaging.

Electrostatic discharge (ESD) diodes protect critical electronic systems and subsystems by dissipating the high energy of electrostatic discharge. This can protect important SOC (system chips) and other devices from damage during ESD events. Adding other devices to high-speed data lines can reduce the signal integrity of transmitted data. Therefore, it is crucial for modern high-speed vehicle systems to appropriately select devices that can protect the system without hindering signal transmission. Nexperia has long dominated the market and has a deep expertise in providing excellent ESD protection solutions. Nexperia comprehensively considers the needs of design engineers and automotive systems, and in this product portfolio, excellent signal integrity is achieved through ultra-low device junction capacitance (typical values as low as 0.28 pF) and higher cutoff voltage (18-32 V), which can be placed closer to the connector. To improve design flexibility, these diodes offer options with or without side climbing tin, which helps achieve automatic optical detection (AOI).

These devices comply with the AEC-Q101 vehicle specification level standards and have both ultra deep rebound characteristics and 0.8 Ω low dynamic resistance characteristics, which can improve system level robustness and clamping performance in high-speed data interfaces.