Usb - Sierra Wireless MC Series Hardware Integration Manual

Hardware Integration Guide ESD Guidelines
4.2.

USB

When the USB interface is externally accessible, it is required to have ESD protection on the USB_D+
and USB_D- signals.
Figure 2. ESD Protection for USB
Sierra Wireless recommends using a 90Ω DLP0NSN900HL2L EMC filter and an RCLAMP0503N or
ESD5V3U2U-03LRH ESD diode.
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