Check out the TennMax RF Absorber Sheets. Available from design to cutting in all locations. Learn More

RF & MICROWAVE
ABSORBERS

All done under one roof.

In a world where few manufacturers have the capability to keep EMI shielding and thermal products made under one roof, the latest RF & microwave absorber line completes our advanced product offering.

Our absorbers are offered in the form of automated dispensing epoxy and cavity resonance pads. Both options offer quick-turn prototypes.

Dispensable Epoxy Absorbers

The automatically dispensed absorbers reduce RF signals, suppress standing waves and RF noise. In addition, these epoxy absorbers adhere well to metal surfaces, mounts permanently thus avoiding the need for die-cutting for tape. They have low outgassing and are electrically equivalent to our cavity resonance sheets absorber products.

Our epoxy absorber comes in Commercial and High Performance grades to suit your needs:

CR-DE-2 CG Absorber Data Sheet →

CR-DE-3 HP Absorber Data Sheet →

Cavity Resonance Absorber Pads

Our absorber pads survive outdoor exposure and have a wide working temperature range. Designed to be flexible, the absorber pads can be cut and fitted to compound curves. In addition, they have low outgassing and are RoHS compliant and halogen free. The absorber pads are a great cost-effective solution.

Our absorber pads range from Commercial to High Performance grades. Contact our sales team to learn which one best suits your product.

CR-SS-2 CG Absorber Data Sheet →

CR-SS-3 HP Absorber Data Sheet →

GET DOWN TO THE DETAILS

Click on any part number to view the data sheet.
Typical PropertiesDISPENSABLE EPOXY ABSORBERSDISPENSABLE FLUOROSILICONE ABSORBERS
Part NumberCR-DE-2
Commercial Grade
CR-DE-3 High PerformanceCR-DFS-2 Fluorosilicone
Minumum Thickness0.5 mm0.50 mm
ColorDark GrayDark Gray
Density3.11 g/cm³4.20 g/cm³3.44 g/cm³
Softness65 Shore A70 Shore A45 Shore A
Operatering Temperature-55 to 125 °C-55 to 200 °C
Flammability RatingUL 94 HBUL 94 HB
Typical PropertiesSILICONE ABSORBER PADSFLUOROSILICONE ABSORBER PADS
Part NumberCR-DSS-2
Commercial Grade
CR-SS-3 High PerformanceCR-DFS-2 FluorosiliconeCR-FS-SS-2
Performance
Minumum Thickness0.25 mm to 2.00 mm*0.50 mm to 2.00 mm
Density3.51 g/cm³4.30 g/cm³1.80 g/cm³3.80 g/cm³
Softness65 Shore A45 Shore A70 Shore A57 Shore A
Operatering Temperature-65 to 200 °C-55 to 200 °C-65 to 200 °C
Flammability RatingUL 94V-0
Standard Sheet Size304.8 mm x 304.8 mm (12 inch x 12 inch)

Articles on RF & Microwave Absorbers

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Technical FAQ

Here are a few commonly asked engineering and application questions about RF and microwave absorbers:

What is an RF absorber?

An RF absorber is a material designed to absorb radio frequency and microwave energy to reduce reflections and electromagnetic interference (EMI).

What materials are used in RF absorbers?

Common materials include carbon-loaded foams, silicone rubbers, ferrite ceramics, and composites engineered for specific frequency ranges and absorption characteristics.

Where are RF absorbers commonly used?

RF absorbers are used in aerospace, defense, telecommunications, electronics manufacturing, and testing environments to control EMI and improve signal integrity.

What types of RF absorbers does TennMax offer?

TennMax provides a range of RF absorbers including flexible silicone sheets, molded gaskets, and custom form-in-place (FIP) solutions tailored to your application.

How do I select the right RF absorber for my project?

Consider frequency range, absorption efficiency, mechanical properties, environmental conditions, and form factor. TennMax experts assist in selecting or custom-designing the ideal absorber.