FS-300 FerroSorb EMC Absorber

FS-300 FerroSorb™ EMC Absorber

ETS-Lindgren's FerroSorbTM FS-300 EMC Absorber is part of the FS Family of hybrid (ferrite tile and carbon loaded material) absorbers from ETS-Lindgren.

ETS-Lindgren's FerroSorb FS-300 EMC Absorber is part of the FS Family of hybrid (ferrite tile and carbon loaded material) absorbers from ETS-Lindgren. The FAA-300 loaded foam portion is designed to match the impedance of ETS-Lindgrens FT-1500 Ferrite Tile panels. When combined, these two absorber technologies become the FS-300 absorber system.

Key Features
  • 30 MHz to 40 GHz Frequency Range
  • Small Profile
  • For Use with Ferrite Tile Backing
  • Up to 775 W/m2 (0.5 W/in2) CW Power Handling
  • Fire Retardant
  • FlexSorb option available
Product Details
Product Features

Frequency Range

Model FS-300 absorber has a very broad band range of 30 MHz to 40 GHz, meeting the required range for MIL-STD 461 and CISPR 25 and providing enough absorption for use in the floor treatment for immunity measurements per IEC 61000-4-3 and for fully anechoic chambers for above 1 GHz testing per CISPR 16.

Small Profile

Only 30 cm high (11.8 in), this absorber has very low profile, yet it has excellent absorption for the entire range of frequencies. The absorber ships in standard 60 cm x 60 cm (23.6 in x 23.6 in) pieces with 36 truncated pyramids per piece.

Tile Backing

FAA-300 material is designed to provide absorption at low frequencies, provided that it is used with a ferrite tile backing as part of the FS-300 absorber system.

Power Handling

Like other ETS-Lindgren absorbers, the FS-300 can handle up to 775 W/m2 (0.5 w/in2) CW power density (540 V/m) in RF and MW frequencies. For periods less than 10 minutes, the absorber can safely handle up to 2650 W/m2 (1.7 W/in2) power density (1000 V/m).

Physical Specifications
Dimensions (O/D) L x W x H: 60 cm x 60 cm x 30 cm (23.6 in x 23.6 in x 11.8 in)
Fire Retardant Ratings:
  • NRL 8093 Tests 1, 2 & 3
  • MIT MS-8-21
  • UL 94
  • DIN 4102-B2

Electrical Specifications
Frequency Minimum: 30 MHz
Frequency Maximum: 40 GHz
Power Handling (CW):
  • 540.0 V/m
  • 775.0 W/m2
  • 0.5 W/in2
Power Handling (Maximum):
  • 1000 V/m
  • 2650 W/m2
  • 1.7 W/in2

Product Options

Optional FlexSorb™ Treatment

With FlexSorb, you can enjoy the same excellent performance characteristics as our traditional absorbers, with the advantages of improved durability. FlexSorb is a special absorber treatment that allows an absorber to bend but not break. It's ideal for high traffic areas like chamber doorways and interior walls, or for tests that require an anechoic floor treatment. And, being that FlexSorb is also non-hygroscopic: its weight does not change in the presence of atmospheric moisture.

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