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Save up to 75% PCB space compared to traditional RJ45 Ethernet! Transmission possible with only one pair of cables!
Using only one set of wires greatly reduces the number of passive components on the PCB. This single-pair Ethernet also has a very compact connector, saving up to 75% PCB space compared to current RJ45 Ethernet.
Isolation voltage according to IEC 62368-1
Similar to 4-pair wire Ethernet, this single-pair Ethernet also provides isolation according to IEC 62368-1 (formerly IEC 60950). Capacitors with 50V galvanic isolation are almost exclusively for automotive Ethernet applications and are insufficient for industrial applications.
The advantage is that the electrical isolation of single-pair Ethernet is easily solved with signal transformers. Wurth's WE-STST transformer series features excellent performance and a very compact size of just 4.5 x 3.2mm.
By connecting the center tap to GND, common mode signals can also be effectively attenuated.
Further EMI improvement and ESD protection
In addition to transformers (74930000), common mode chokes (744232222) can improve EMI behavior even at frequencies from 1MHz without adversely affecting data signals. The TVS diode (824012823) also complies with IEC 61000-4-2 and provides ESD protection up to 8 kV. In addition, we also handle 2kV compatible capacitors (885342208024) and general-purpose small capacitors (885012205086).
Product explanation video
In this video, you can see the solutions that Ult Electronics can propose for Single Pair Ethernet, as well as attenuation and frequency characteristics graphs.
Würth Elektonik is a member of the SPE Industrial Partner Network
The SPE Industrial Partner Network is an association of companies promoting Single Pair Ethernet technology as a rapidly growing foundation for the Industrial Ethernet of Things (IIoT). The SPE Industrial Partner Network will be the first point of contact for prospective users for all questions about building SPE networks and devices. The SPE Industrial Partner Network is also a central platform for information and exchange, providing clear recommendations for the development of future IIoT applications.
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