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Nexperia adds in-vehicle network ESD protection


A variety of packages, capacitance classes and 36 V VRWM provide design flexibility for commercial vehicle

Nexperia has introduced an AEC-Q101 qualified portfolio with six ESD protection devices (PESD2CANFD36XX-Q) designed to protect bus lines in automotive in-vehicle networks (IVN) such as LIN, CAN, CAN-FD, FlexRay and SENT from damage caused by electrostatic discharge (ESD) and other transients.

As data rates increase and vehicles feature more electrification, the need for ESD protection is becoming ever more critical. Providing the right protection for automotive modules is a continuous challenge for design engineers.

In contrast to the battery voltage found in cars and smaller vehicles, 24 V board nets are typically used in trucks and commercial vehicles. ESD protection devices with operating voltages typically above 32 V are required to safeguard sensitive signal lines in 24 V board nets. Addressing these requirements, Nexperia has designed this portfolio to have a maximum reverse standoff voltage of 36 V and up to 22 kV ESD protection. This performance is combined with a low clamping voltage of VCL= 48 V at IPP = 1 A to provide the best-in-class system-level robustness for IVN.

Keeping the specifications of in-vehicle networks and the ease of design in mind, Nexperia is offering this portfolio in SOT23 and SOT323 packages with three different ultra-low capacitance classes of 4.3 pF, 6 pF and 10 pF, which help ensure a smooth communication between interfaces without impacting signal integrity.

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