00540059| Datasheet

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SMT Inductors General
1 SMT inductors, SIMID series

These SMT inductors are available in 17 series and 7 standard sizes. They are suitable for many different applications, for instance, for low and high frequency decoupling of signal and control circuits, for filtering power supply lines and in other filters. They are also to be found in resonant circuits, impedance-matching applications and storage chokes. Furthermore, they are needed wherever it is necessary to ensure electromagnetic compatibility (EMC). SMT inductors of the SIMID series are produced either by cutting a spiral into a copper foil by a laser beam (laser-cut technology) or by winding a copper wire onto the core (wire-winding technology). 1.1 Laser-cut inductors

The smallest sizes 0402 and 0603 are produced using laser-cut technology. Ceramic core, copper-plated SIMID 0402/0603 inductors consist of a copper-plated ceramic core with a square cross-section. The end faces of the ceramic core are fitted with miniature flanges. A focused laser beam is used to cut the copper layer between the flanges in such a way that a single-layer coil is created. The burrs left by the re-solidified copper at the edges of the tracks cut by the laser are removed by an electrical polishing process. Next, the surfaces between the flanges are coated with epoxy resin.

Laser-cutting

Electro-polishing

Coating

Tinning

Finally, the end faces are electro-plated with nickel and then tinned. The terminals of the SIMID 0603-C products are plated with pure tin.

Fig. 1 Construction of a laser-cut inductor
Epoxy coating Lackschicht Laser cut Laserschnitt

Ceramic core Keramikkern Copper layer Kupferschicht Tinned terminal Verzinnter Anschlu

SSB1501-P

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00540059 DATASHEET