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NORWE, a producer of sophisticated of thermoplastic moldings used in the manufacture of transformers and other wound components, reports that it is expanding its series of EE/M coilformers with longer creepage dimensions between ferrite and solder-pin.
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The design allows automatic winding on automated winding machines. Special winding noses and a wire routing provide tension-relief when binding on the wire. The coilformers have distance strips to avoid cold-solder joints into the PCB. The new versions join a range of components in the EE/M series which is designed for small transformers but are also used in switched mode power conversion.
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The company also has a PQ-series with vertical magnetic axis. It uses only a small area on the printed circuit board, providing maximum power output with a minimum requirement on weight and volume, and is also suitable for automated winding machines.
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Based in Bergneustadt, Germany, NORWE is an active user of laser direct structuring (LDS) technology. The LDS-method uses special plastic materials with additives. After a partial activation by laser conductor layers are created in a chemical reaction. NORWE has further developed the technology by using cross-linked plastic materials to allow winding on the plastic without solder-pins. The advantages are convincing, notes the company: downsized components, simplified connecting technology, lower weight, optimal coplanarity as well as the possibility to provide smaller and medium-sized series without expenses for a pinning technique. For more info, see www.norwe.com.