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Pot cores

Pot cores are used for inductors with low stray fields. The pot core coil generally consists of a coilformer with one or two sections, the pot core halves made of soft magnetic, low-loss and usually high perm materials, the mouting plate and the retaining clamps. Pot core coils can be supplied with defined shearing, the predetermined AL values for the individual materials and pot core geometries being achieved by grinding a defined air gap into the center leg of the pot core halves.

For producing frequency-selective components, materials of different initial permeability, low losses and high thermal and temporal stability are used.

We recommend the following materials in dependence of the frequency ranges:

Frequency range Material
10 – 100 kHz K4000, K6000
50 – 300 kHz K2005

The materials K2004, K2006 and K2008 can be supplied for power transformers.

Main applications:

  • Telecommunications
  • Measurement and control engineering
  • Current transformers, power transformers (large pot core coils)
  • Automation technology

Another important area of application for pot ores are proximity sensors.

From a physical point of view, the defined mistuning of LC-resonators in inductive sensors is used to obtain information for controlling industrial processes. Mistuning can be achieved by inserting electrically conductive or magnetic material into a high-frequency electric field.

The advantages of inductive sensors are:

  • very high operating reliability
  • their robustness against dirt
  • high operating frequencies possible
  • large usable temperature range
Type Drw. no. nominal AL values / nH datasheet
K2004 K2005 K2006 K4000
SK 9/5 1 1250 1225 2000 PDF Icon
SK 11/7 1 1700 1650 2800 PDF Icon
SK 14/8 1 2250 2200 3600 PDF Icon
SK 18/11 1 3000 2950 5200 PDF Icon
SK 22/13 1 3850 3800 6400 PDF Icon
SK 26/16 1 5000 4900 8100 PDF Icon
SK 30/19 1 6400 5900 9750 PDF Icon
SK 36/22 1 8300 7400 12200 PDF Icon
SKN 25/8,9 1 X X X N/A
SKN 35/11 1 X X X N/A
SKN 59,3/17,8 2 X X X N/A
SKN 70/12,5 3 X X X N/A
SKN 70/14,5 3 X X X N/A
SKN 82/16 3 X X X N/A
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Kaschke Components GmbH • Kaschke Components GmbH • Rudolf-Winkel-Str. 6 • 37079 Göttingen • Telefon +49 551 5058 6 • Telefax +49 551 65756

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