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SecureTime “offer the most resilient timing in the industry”, with multisource assurance combining signals from GNSS-dependent government and GNSS- independent commercial constellations across Medium Earth Orbit (MEO),
Geosynchronous Earth Orbit (GEO) and Low Earth Orbit (LEO), respectively. The EdgeGM 7000 integrates advanced and scalable resiliency and PTP speed capabilities in a compact half 19” wide and 1U height rack-mountable unit with
scalable software options. For instance, it can be upgraded from 1/10G to 25G PTP with a simple license, and GNSS backup can be activated with an on-demand alternate GNSS GEO-L source license over the air. EdgeGM exceeds Level 4 PNT resiliency as
specified in the IEEE P1252 standard. It also incorporates PTP profiles for multiple industries, including telecommunications, enterprise, power and more.
www.viavisolutions.com
10BASE-T1S OPEN Alliance compliant ESD protection diodes for automotive industry
N
experia has released what is said to be “the industry’s first ESD protection diodes to comply with the OPEN Alliance requirements for use in 10BASE-T1S automotive Ethernet applications”. The low capacitance (0.4 pF) of these diodes means they can also be used to protect higher speed applications deploying 100BASE-T1 or 1000BASE-T1 in-vehicle networks while still maintaining impressive signal integrity. These diodes offer a single line ESD protection solution with up to 18 kV, according to IEC 61000-4-2, and up to 15 kV with 1000 discharges, as per OPEN Alliance. These devices are covering the full range of automotive board net voltages including 12 V typically found in cars; 24 V for trucks and larger commercial vehicles; and 48 V in hybrid and electric cars.
“At Nexperia, we are proud to introduce the first diodes to meet the stringent OPEN Alliance requirements for 10BASE- T1S automotive Ethernet applications. These diodes not only enable backward compatibility with legacy standards like LIN and CAN but also support modern in-vehicle networks with exceptional signal integrity,” said Alexander Benedix, head of product group protection and filtering at Nexperia. High-bandwidth 100BASE-T1 and 1000BASE-T1 automotive Ethernet networks are playing a key role in advancing automotive connectivity and electrification but many legacy in-vehicle applications operate at lower speeds and are still implemented using older connectivity standards like CAN and LIN. Interfacing these applications to higher speed automotive Ethernet networks introduces unnecessary complexity and cost so replacing them with 10BASE-T1S makes sense, according to Nexperia. This approach allows a single network architecture (automotive Ethernet) to serve the speed requirements of almost every automotive application. Now automotive subsystem manufacturers will be able to
www.cieonline.co.uk
use a single ESD protection diode, the PESD1ETH10L-Q or PESD1ETH10LS-Q, to protect all automotive Ethernet applications against the harmful effects of electrostatic discharge, thus simplifying their board designs and supply chains.
The OPEN Alliance (One-Pair Ether- Net) is a non-profit group of automotive manufacturers, technology providers, and suppliers working to establish Ethernet- based networks as the standard for in-vehicle networking.
The PESD1ETH10L-Q is available in a DFN1006-2 package measuring 1.0 mm x 0.6 mm x 0.48 mm while
the PESD1ETH10LS-Q is available in DFN1006BD-2 measuring 1.0 mm x 0.6 mm x 0.37 mm with side-wettable flanks to
enable automated optical inspection (AOI) in applications that require higher levels of soldering reliability.
https://www.nexperia.com/automotive-ethernet Enter the Instrumentation & Electronics Awards today!
Visit:
https://iandeawards.co.uk/ to find out more or turn to page 48. Components in Electronics February 2025 9
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