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TDK touts smallest SMD pulse transformers

27 Jun 2013

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TDK SMD pulse transformers

With dimensions of only 3.2 x 3.2 x 2.8 mm3, TDK Corp. claims that its new SMD pulse transformers are the world's smallest. Ideal for LAN applications, the ALT3232M has 30% lower volume and footprint than previous products.

The ALT3232M's inductance is 150µH, its insertion loss is in the frequency range from 100kHz to 100MHz at 2.5dB, and its parasitic winding capacitance is only 25pF at 100kHz.

By applying technology that has proved its worth in the production of SMD common mode filters, TDK was able to devise an automated winding process suitable for mass production. This reduces characteristics variations that tend to occur with manual winding, and thereby offers enhanced reliability and quality.

Series production will start in July 2013.

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