Nexperia, an ESD security diode released for CAN-FD

The PESD2CANFDx series electrostatic discharge (ESD) diodes have been published by Nexperia of the Netherlands for the CAN-FD bus, which is a network for in-vehicle systems.

Two attributes exist. One is that it is enclosed with a Side Wettable Flank (SWF) structure in a small box. DFN1110D-3 with external dimensions of 1.1 mm x 1.0 mm x 0.48 mm and DFN1412D-3 with dimensions of 1.4 mm x 1.2 mm x 0.48 mm is compiled for the kit. The mounting area can be decreased by up to about 80 percent relative to the commodity sealed in the 3-terminal SOT-23, which is a general kit .’

ESD protection diode for CAN-FD bus

High ESD safety efficiency and RF performance is another aspect. The clamp voltage is as low as + 33V with regard to ESD defense efficiency (when the peak pulse current is 1A).

According to the firm, “it has achieved the lowest clamping voltage in the industry among similar products.” The insertion loss was suppressed to +20 dB (value at 300 MHz) with regard to RF output, so “high signal quality (signal integrity) can be ensured” (the company). Complies with the “AEC-Q101” consistency standard for automotive discrete semiconductors. It can be used for networks for in-vehicle devices / industrial devices such as CAN, FlexRay, SENT and LVDS, in addition to CAN-FD.

It is a product compliant with bidirectional transmission consisting of four diodes. Based on the kit, twenty items were prepared: peak reverse operating voltage (V RWM), inter-terminal capacitance (diode capacitance, C d), etc. The voltage solutions for peak reverse service are + 24V and + 27V. The inter-terminal capacitance options are 3.5pF, 4pF, and 6pF. For example, the characteristics of the ‘PESD2CANFD27V-QB’ sealed commodity DFN1110D-3 with a maximum reverse operating voltage of +27V and a capacitance between 6pF terminals are as follows. 2.5A is the highest peak pulse present. Dynamic resistance amounts to 08 (standard value). For the contact discharge model, the ESD resistance voltage was ± 20kV. The temperature range for activity is -55 to + 150 ° C.