Low capacitance diodes protect automotive data interfaces 

Robust ESD (electrostatic discharge) protection diodes have been added to Nexperia’s portfolio of low clamping and low capacitance ESD protection diodes. This portfolio is designed to protect high speed data lines such as USB 3.2, HDMI 2.0, LVDS, automotive A/V monitors, displays and cameras. It also aims to address the upcoming high speed video links and the OPEN Alliance MGbit Ethernet applications. 

The PESD5V0C1BLS-Q and PESD5V0C1ULS-Q are both two-pin single line devices supplied in compact DFN1006BD-2 packages. This is intended to optimise routing. The other new additions are the PESD5V0C2UM and PESD5V0C2UM-Q which are available as three-pin devices for both differential lines. They are supplied in a DFN1006-3 package which has side wettable flanks to enable automated optical inspection (AOI). 

All variants come in leadless packages to improve electrical performance and signal integrity.

ESD voltage clamping diodes protect data interfaces in automotive subsystems but developers have to be careful that they do not degrade data signal integrity or negatively impact the electromagnetic compatibility (EMC) performance of the systems. Nexperia claimed these diodes offer best-in-class signal integrity performance with capacitance as low as 0.3pF. 

These AEC-Q101 automotive-qualified devices exhibit deep snapback behaviour combined with a low resistance of 0.27 Ohm, for system level robustness and clamping performance in high speed data interfaces, said Nexperia.

Nexperia produces semiconductors: diodes, bipolar transistors, ESD protection devices, MOSFETs, GaN FETs and analogue and logic ICs. 

Headquartered in Nijmegen, the Netherlands, Nexperia meets the stringent standards set by the automotive industry. The company has employees across Asia, Europe and the USA. 

Nexperia is a subsidiary of Wingtech Technology and has an extensive IP portfolio and is certified to IATF 16949, ISO 9001, ISO 14001 and ISO 45001.


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