Specifically for LAN applications, Epcos has developed magnetic modules for both electrical isolation and suppression of common-mode and differential-mode interference. The modules are available in single, dual and quad-port versions and are qualified to IPC/JEDEC J-STD-020C and IEEE 802.3. The electrical isolation can withstand a breakdown voltage of 1500 V a.c.
The insertion loss of the modules is only -1,0 dB, while values of -16 dB and -40 dB are attained for return loss and crosstalk, respectively. In addition to the standard temperature range from 0 to +70°C, versions with an extended temperature range from -40 to +85°C are available for industrial applications. Typical applications are 10/100 Base-T, 1000 Base-T and PoE (Power over Ethernet).
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