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MR21 The MAST Technologies MR21 is a Silicone Cavity Resonance Absorber designed for EMI reduction and antenna isolation. It offers a UL94 V-0 flammability rating and a wide operating temperature range.
Mfr Part #:

MR21

Available from 1 distributors
Mfr Name: Silec
Silec
The MAST Technologies MR21 is a Silicone Cavity Resonance Absorber designed for EMI reduction and antenna isolation. It offers a UL94 V-0 flammability rating and a wide operating temperature range.
✓ Total Stock: 5 pcs
$ Price Range: $6.79

MR21 Available from 1 distributor

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✓ Non-Authorised
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5 pcs
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MR21 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
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Halogen Free
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MR21 Description

Short technical summary and product information.

The MAST Technologies MR21 is a high-performance RF absorber constructed from a durable silicone elastomer. It is designed for cavity resonance attenuation, EMI reduction, and Rx/Tx antenna isolation in various electronic systems. This material is very thin, making it suitable for compact applications.

 

Key specifications include a thickness of 0.020 inches and an optional 0.005-inch PSA backing. The operating temperature range is -60°F to 325°F, and it boasts a UL94 V-0 flammability rating. The material is also RoHS/REACH compliant and Halogen Free.

 

Available in standard sizes such as 12" x 12" and 24" x 24", the MR21 can be supplied as sheets, die-cut, or kiss-cut pads. Its tough and flexible nature allows it to survive outdoor exposure without cracking, supporting a broad frequency range.

 

Applications include high-frequency interference reduction inside shielding cans and specular return (RCS) management. The material's properties make it a versatile solution for demanding RF environments.

MR21 Quick Information

Product Type: RF Absorber
Canonical Name: MR21 Cavity Resonance Absorber
Subcategory: Cavity Resonance Absorber

MR21 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

MR21 Estimated Pricing

Qty Low High
1+ $6.79 $6.79

Estimated market price range - modelled values for guidance only, not live distributor offers.

MR21 Features

  • Silicone elastomer for RF absorption.
  • 0.020 inch thickness for compact designs.
  • UL94 V-0 flammability rating.
  • Wide operating temperature range.
  • RoHS and REACH compliant.

MR21 Applications

  • Reduces resonant cavity interference.
  • Provides effective EMI reduction.
  • Isolates Rx/Tx antennas.
  • Minimizes specular return (RCS).

MR21 FAQs

5 frequently asked questions generated from this part’s specifications.
What is the operating temperature range for the MR21 RF Absorber?

The operating temperature range is -60°F to 325°F.

What is the flammability rating of the MR21 RF Absorber?

The flammability rating is UL94 V-0.

What is the thickness of the MR21 RF Absorber?

The thickness is 0.020 inches.

What is the hardness of the MR21 RF Absorber?

The hardness is 60-80 Shore A.

Is the MR21 RF Absorber Halogen Free?

Yes, the MR21 RF Absorber is Halogen Free.

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