​​​​​ETS-Lindgren’s EMC-20PCL is an ultra broadband absorber which has been optimized for EMC applications. ​ETS-Lindgren manufactures EMC-20PCL from high quality, low density polyurethane foam. A double immersion process evenly impregnates the foam with a proprietary conductive carbon formula. This process optimizes absorber performance and provides an extra degree of protection against water and fire damage. After curing, the foam is precision-cut into a pyramidal configuration and a coating is added for a pleasing appearance. Fifteen individual quality assurance checks take place during production.

This absorber features blunt-tips, which allow for greater working space within the chamber, while reducing the chances of absorber tip damage.

Key Product Information

New or Retrofit Chamber Installation

EMC-20PCL Anechoic Absorber can easily be installed into either new construction, or as a retrofit to existing chambers. 

Reduced Profile, Blunt-Tips

The EMC-20PCL has a reduced profile, providing the user a greater working space within the chamber. Blunt-tips on this absorber reduce the chance of absorber tip damage.

Non-Hygroscopic Substrate

The EMC-20PCL absorber is produced from a fire-retardant chemical formula that is non-hygroscopic. As a result, the absorber is not affected by moisture and will maintain its mechanical and RF performance over the life of the product.

Assorted Colors

The EMC-20PCL is now available in the original blue, black or grey.

Performance Standards

EMC-20PCL absorber meets or exceeds MIL-STD-461D/E/F and RTCA-D0-160 performance requirements and is ideal for new installations or chamber retrofits. It provides an ultra broadband performance range of 80 MHz to 40 GHz.

Ultra-Broadband Performance

During the manufacturing process, our unique two-step impregnations are specially formulated to provide improved reflectivity performance below 200 MHz. This tuning is verified on each absorber piece in a large coaxial reflectometer which measures reflectivity vs. frequency from 20 MHz to 300 MHz to ensure consistency of performance.

Power Handling

EMC-20PCL has excellent power handling capabilities. This absorber has been proven to safely withstand up to 0.5 Watt/in2 CW power density in RF and microwave frequency ranges. Maximum service temperature is 90C (190o F) continuous.


This absorber meets the fire retardant standards of NRL 8093 Tests 1, 2, 3, MIT MS-8-21, UL 94, and DIN 4102-B2: Tests for Flammability. EMC-20PCL has an ASTM E84-84 flame-spread index of 35 and a smoke developed index of 450.​


Specifications Select a tab below for more information

Frequency Minimum: 80 MHz 
Frequency Maximum: 40 GHz 
Power Handling (CW):

  • 540.0 V/m
  • 775.0 W/m2
  • 0.5 W/in

Power Handling (Max):

  • 1000.0 V/m
  • 2650.0 W/m2
  • 1.7 W/in2
Length: 61.0 cm (24.02 in)
Width: 61.0 cm (24.02 in)
Height: 50.8 cm (20.00 in)
Weight: 4.6 kg (10.14 lb)

View BIM Models of our Product Options Below:



Key Features

  • Designed for MIL-STD-461D/E/F, and RTCA-DO-160 Testing
  • Ultra Broadband Performance: 80 MHz to 40 GHz
  • 540 V/m CW Radiated Field Strength
  • Max. 0.5 Watt/in2 or 775 Watt/m
  • Power Handling Fire Retardant: Meets NRL 8093 Tests 1,2, & 3, MIT MS-8-21, UL 94, and DIN 4102-B2
  • FlexSorb™ option available

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Date Last Updated: Wednesday, April 1, 2020
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