Telecom cores

20 November 2002 Telecoms, Datacoms, Wireless, IoT

Ferroxcube's new EPX shaped magnetic core features an increased centre pole area and achieves the same THD performance in a smaller core volume. The EPX designs, complete with SMD bobbin and clip, satisfy the need for slimmer pulse transformers. They are available in the high permeability material 3E6 for pulse transformers and in the low harmonic distortion material 3E55 for ADSL wideband applications.

Even though the EPX's have a smaller volume than EP13 they are suitable to build pulse transformers which comply to CCITT (G.703). ADSL transmission equipment (DSLAM) requires multichannel interface boards. EPX7 and EPX9 are an alternative to EP13, to satisfy the demand for high-density mounting. They combine the height of EP13 with the footprint of EP7. As a result, about 30% more lines per board can be accommodated. The longer EPX9 has more winding space and can fulfil the same safety isolation requirements as EP13, while the core width is still the same as for EPX7. EPX10 has the same outer dimensions as EP10, but due to the larger centre pole area the THD performance is improved.

For more information contact Avnet Kopp, 011 809 6100, [email protected], www.avnet.co.za

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