Absorbers

Since 1992, SIEPEL has been designing, manufacturing and setting up electromagnetic absorbers with a high-quality level.

SIEPEL offers a very innovative wide range which is, according to our customers, one of the most complete on the market. It includes absorbers perfectly suitable for EMC tests.

All along the manufacturing process, our absorbers are subject to many factory tests according our quality management system. Indeed, our products follow a strict checking process, allowing to offer guaranteed performances to our customers.

Our absorbers beneficiate of specificities and advantages varying according to the model.

Do not hesitate to have a look on our datasheets or contact us at sales@siepel.com to learn more!

Standard absorbers

Our standard absorbers offer notable physical properties:

  • Flexibility: easily manageable products
  • Mechanical resistance: excellent ageing resistance
  • Power handling: 2kW / m² for standard pyramidal absorbers
  • Temperature resistance: from – 65°C to +160°C for pyramidal absorbers
  • Fire rating: compliant to ISO 11925-2 Euroclass E, NRL 8093 – tests 1, 2 and 3, and DIN 4102 – B2
  • Guaranteed reflectivity performances and resistance over time
  • Compliance for cleanroom use: ISO class 4 classification according to ISO 14644-1: 2015
  • Compliance to environmental standards: raw materials in accordance with REACH & RoHS standards

 

Moreover, we offer a wide choice of colors for our standard absorbers which provides you freedom in terms of customization and brightness in the chamber.

Ferrite tiles / panels, low thickness flat absorbers (7mm) covering a frequency range from 30 MHz to 1 GHz.

Pyramidal absorbers intended to be bonded on ferrite tiles. They cover a frequency range from 1 to 18 (40) GHz.

Combination of ferrite with HY / HYT absorbers covering a frequency range from 30 MHz to 18 (40) GHz.

Broadband pyramidal absorbers, covering a frequency range from 80 MHz to 40 GHz. APM are particularly adapted to automotive, aeronautic, space and defense equipment because they follow the EMC standards which do not require hybrids.

Truncated APM covering a frequency range from 80 MHz to 40 GHz.

High power absorbers

For applications in space field for example, SIEPEL offers high power absorbers (AHP) covering a frequency range from 300 MHz to 50 GHz. They are dedicated to areas subject to high power densities (20 kW/m² CW and more) and they can withstand high temperatures generated by a strong field.

These absorbers offer following remarkable physical properties:

  • Mechanical resistance: excellent ageing resistance
  • Maximum temperature: +200°C
  • Fire resistance: in accordance with ISO 11925-2 Euroclass E, NRL 8093 – tests 1, 2 and 3, and DIN 4102 – B2
  • Notable reflectivity performances and resistance over time
  • Compliance with environmental standards: raw materials in accordance with REACH & RoHS standards